Egyptian Society of Biological SciencesEgyptian Academic Journal of Biological Sciences. A, Entomology1687-88094120110601Population dynamics of the purple scale, Lepidosaphes beckii (Hemiptera: Diaspididae) and its parasitoid Aphytis lepidosaphes (Hymenoptera: Aphelinidae) as a new threat pest on mango trees in Egypt1121516710.21608/eajbsa.2011.15167ENNadiaAlyPlant Protection Research Institute, Agriculture Research Center, Dokki, Giza, EgyptJournal Article20180929 The purple scale,<em> Lepidosaphes beckii </em>(Newman) (Hemiptera: Diaspididae)is one of the most important pests attacking mango. The present paper includes population dynamicsof the purple scale,<em> L. beckii </em>and its parasitoid. Dynamics of<em> L. beckii </em>and its parasitoidon mango trees was carried out in Giza, governorate, during 2009 and 2010.Only one parasitoid recorded in this workwas<em> Aphytis</em> <em>lepidosaphes</em> Compere (Hymenoptera: Aphelinidae). Statistical analysis of the effect of weather factors on the population of <em>L. beckii </em>andits parasitoid during the two years under consideration was explained. The results indicated that maximum and minimum temperatures was significant on the population of <em>L. beckii </em>and its parasitoid<em>, A.</em> <em>lepidosaphes</em> while percent of relativehumidity it is nonsignificant. As well as obtained results over both years indicated the occurrence of three generations per year for <em>L. beckii </em>on mango in Giza.Egyptian Society of Biological SciencesEgyptian Academic Journal of Biological Sciences. A, Entomology1687-88094120110601Does the HMF value affect the Antibacterial activity of the Bee Honey?13191516810.21608/eajbsa.2011.15168ENEmad A.NafeaDepartment of Apiculture, Plant Protection Research Institute, Agriculture Research Center, Dokki, Giza, EgyptWalaa A.MoselhyFaculty of Science, Zoology Department, Al-Azhar University (Girls)Asmaa, M.FawzyDepartment of Apiculture, Plant Protection Research Institute, Agriculture Research Center, Dokki, Giza, EgyptJournal Article20180929This study evaluated the antimicrobial activity of different levels of HMF value of honey at different concentration (15,20and 25%honey). Honey and HMF concentrations of 15 %, 20 % and 25 % honey in distilled water were prepared. These preparations were tested for antimicrobial activity against four different types of pathogenic bacteria; <em>Pseudomonas aeruginosa</em>, <em>Escherichia coli</em>, <em>Staphylococcus aureus </em>and <em>Bacillus subtilis</em> . Antimicrobial activity was determined as an equivalent of the inhibition zones diameters using filter paper discs (in millimeters) after incubation of the cultures at 30°C for 24 hours for bacterial species. The results showed a bactericidal activity of HMF value of honey against a broad spectrum of bacteria with variable degrees. By use of least significant differences test for multiple comparisons, it is apparent that the honey of HMF value (90.24 mg<em>l</em>kg) showed the highest inhibitory effect on bacterial growth compared to other honey treatments and HMF concentrations. This value (90.24 mg<em>l</em>kg) had the highest bactericidal activity against <em>Escherichia coli</em> at concentrations of 15and 20% honey. Similarly, the HMF (90.24 mg<em>l</em>kg) value had significantly higher inhibitory effects compared to other treatments on <em>Bacillus subtilis</em> growth at concentration 15, 20 and 25% honey and on <em>Staphylococcus aureus</em> growth at concentration 15and 25% honey. However, there was no inhibitory effect of HMF value of honey (203.0 mg<em>l</em>kg) against all bacterial strains tested at concentration 15% honey. Considerably, no inhibitory effect of all HMF values of honey treatments was noted on <em>Pseudomonas aeruginosa</em>. Conclusion, the different levels of HMF value of honey at different concentration (15,20and 25%) showed a bactericidal activity against a broad spectrum of bacteria with variable degreesEgyptian Society of Biological SciencesEgyptian Academic Journal of Biological Sciences. A, Entomology1687-88094120110601Geometric Morphometric Analysis of the Head, Pronotum and Genitalia of the Rice Black Bug Associated with Selected Rice Types21311516910.21608/eajbsa.2011.15169ENLessie Mae L. DelaCruzDepartment of Biological Sciences, College of Science and Mathematics
MSU-Iligan Institute of Technology, Iligan City, PhilippinesMark Anthony J.TorresDepartment of Biological Sciences, College of Science and Mathematics
MSU-Iligan Institute of Technology, Iligan City, PhilippinesAlberto T.BarrionPhilippine Rice Research Institute, Science City of Munoz, Nueva Ecija, PhilippinesRavindraJoshiPhilippine Rice Research Institute, Science City of Munoz, Nueva Ecija, PhilippinesLeocadio S.SebastianPhilippine Rice Research Institute, Science City of Munoz, Nueva Ecija, PhilippinesCesar G.DemayoDepartment of Biological Sciences, College of Science and Mathematics
MSU-Iligan Institute of Technology, Iligan City, PhilippinesJournal Article20180929The Rice blackbug, <em>Scotinophora coarctata </em>(Fabricius, 1798) is one of the major rice pests causing high yield loss in terms of rice production in the Philippines. Resistant varieties developed to reduce yield has never been successful as there are populations of the pest that are able to survive and utilize the different rice types. It was argued that population differentiation occurs in deployed rice varieties thus this study was conducted. Landmark - based and outline morphometric analysis and correlation analysis based on distances (CORIANDIS) were used to compare the shape and sizes of the head, pronotum, abdominal segment, genital plate and scutellum of rice black bug individuals associated with rice host varieties. Results of the analysis showed that RBB populations differ in the shapes and sizes of the scutellum indicating a significant rice host associated shape differences. It can be concluded from this study that rice types or genotypes affect population structures of the pest.Egyptian Society of Biological SciencesEgyptian Academic Journal of Biological Sciences. A, Entomology1687-88094120110601Evaluation of the biological activity of some Cupressus semprevirens (Cupressaceae) extracts against the mosquito vector Culex pipiens L. (Diptera: Culicidae)33481517010.21608/eajbsa.2011.15170ENTarek M.Y.El-SheikhDepartment of Biology, faculty of Science, Jazan University, Jazan, Saudi Arabia.Mostafa I.HassanDepartment of Biology, faculty of Science, Jazan University, Jazan, Saudi Arabia.Walaa A.MoselhyDepartment of Zoology, Faculty of Science(girls), Al-Azhar University, Nasr City, Cairo, EgyptMouneer S.AmerDepartment of Zoology, Faculty of Science (boys), Al-Azhar University, Nasr City, Cairo, EgyptAhmed Z.ShehataDepartment of Zoology, Faculty of Science (boys), Al-Azhar University, Nasr City, Cairo, EgyptJournal Article20180929Ethanolic, acetone and petroleum ether extracts of leaves from the Egyptian plant <em>Cupressus sempervirens </em>(Cupressaceae) were tested against 3<sup>rd</sup> instar larvae of the mosquito <em>Culex pipiens</em> L. The obtained results indicated that petroleum ether extracts were more efficient than ethanolic and acetone extracts. The toxicity, based on Lc<sub>50</sub> values, are arranged in a descending order as follows: ethanolic (Lc<sub>50 </sub>263.6ppm) > acetone extract (Lc<sub>50 </sub>104.3ppm) > petroleum ether extracts (Lc<sub>50 </sub> 37.8 ppm). As shown by the present results, a remarkable reduction in both the pupation percent and adult emergence was obtained. Moreover, all plant extracts exerted a delayed toxic effect on the pupae and adults after treatment of larvae. Also, various degrees of morphogenic abnormalities were observed in the immature and adult stages. Thus, these results may provide an opportunity to develop alternatives to costly organic pesticides and environmentally hazardous chemicals with some available cheap plants which are uaually environmentally safe to different living organisms.Egyptian Society of Biological SciencesEgyptian Academic Journal of Biological Sciences. A, Entomology1687-88094120110601Role of pteromalid parasitoid Scutellista caerulea (Fonscolombe) (Hymenoptera: Pteromalidae) for biological control of the soft scale insects (Hemiptera: Coccidae) in Egypt49581517110.21608/eajbsa.2011.15171ENHodaBadaryPlant Protection Research Institute, Agricultural Research Center, Dokki, GizaShaabanAbd-RabouPlant Protection Research Institute, Agricultural Research Center, Dokki, GizaJournal Article20180929The <em>pteromalid</em>parasitoid<strong>, </strong><em>Scutellista caerulea</em> (Fonscolombe)<strong> (</strong><em>Hymenoptera</em><strong>: </strong><em>Pteromalidae</em><strong>)</strong> is one of the most effective parasitoid associated with soft scale insects. This work dealt with the biological role of this parasitoid during 2009 and 2010 in Egypt. The results indicated that the parasitoid, <em>S. caerulea</em> was emerged from 8 species of soft scale insects. The host soft scale insects were <em>Ceroplastes floridensis</em> Comstock,<em> Ceroplastes rusci</em> (L.), <em>Coccus hesperidum</em> L., <em>Kilifia acuminata </em>(Signoret), <em>Parasaissetia nigra </em>(Nietner), <em>Saissetia coffee </em>(Walker), <em>Saissetia oleae</em> (Olivier) and <em>Waxiella mimosae</em> (Signoret)<strong> (</strong>Hemiptera: Coccidae). Population abundance studies of <em>S. caerulea</em> were carried out on the aforementioned soft scale insects in eight locations in Egypt, being Beni Seuf, Gharbiya, Giza, Ismailia, Marsa Matruh, Northern Coast, Qena and Sharqiya. The highest rate of parasitism attained with <em>S. oleae</em> was found to be 38.2 and 40.9 % during the first and second years, respectively. While average parasitism rates was 21.3 and 23.5 % during the two years under consideration, respectively. The results indicated that <em>S. caerulea</em> was the effective parasitoid attacking some soft scale insects in Egypt.Egyptian Society of Biological SciencesEgyptian Academic Journal of Biological Sciences. A, Entomology1687-88094120110601Seasonal incidence of scale insects, whiteflies and psyllids (Hemiptera) of olive and their natural enemies in Egypt59741517210.21608/eajbsa.2011.15172ENShaabanAbd-RaboouPlant Protection Research Institute, Agricultural Research Center, Dokki, Giza, Egypt.NohaAhmedPlant Protection Research Institute, Agricultural Research Center, Dokki, Giza, Egypt.Journal Article20180929Scale insects, whiteflies and psyllids (Hemiptera) are the main olive pests in Egypt. The aim of this work is to study the incidence of<br />scale insects, whiteflies and psyllids and their natural enemies on olive trees<br />in different locations in Egypt<br />during 2009-2010. The results of the present work indicated that the seasonal<br />abundance of <em>Lucaspis riccae</em> Targioni-Tozzetti (Hemiptera: Diaspididae) on <em>olive </em>trees reached maximum during<br />November and February in first and second<br />years, respectively. Percent parasitism by <em>Aphytis libanicus </em>Traboulsi (Hymenoptera:<br />Aphelinidae) reached maximum during<br />December with percent parasitism 11.1 and 12.2 %, during the two years under considerations,<br />respectively. The insect population of <em>Parlatoria<br />oleae</em> Leonardi (Hemiptera:<br />Diaspididae)<br />reached maximum during October, 2009-2010.<br />Percent parasitism by <em>Aphytis lingnanensis</em> Compere (Hymenoptera:<br />Aphelinidae) and <em>Habrolepis aspidioti</em> Compere and Annecke (Hymenoptera: Encyrtidae) reached<br />maximum during December and November with percent parasitism 6.5 and 12.5 in the first year,<br />respectively and in November in the second<br />year with percent parasitism 6.9<br />and 14.2 %, respectively. The predator <em>Chilocorus bipustulatus</em> L.<br />(Coleoptera: Coccinellidae) reached maximum during February and March in the<br />first and second years, respectively. In this work the abundance of <em>Saissetia<br />coffeae</em> (Walker)<br />(Hemiptera: Coccidae) reached maximum<br />during October in the first and second years. Percent parasitism by <em>Metaphycus flavus</em><br />(Howard) (Hymenoptera: Encyrtidae) reached maximum during October and September with parasitism rates 11.5 and 13.5 % during the first and second<br />years, respectively. The predator <em>Scymnus syriacus</em> (Marseul)<br />(Coleoptera: Coccinellidae) reached maximum during October in the first and second years. The populations of <em>Saissetia<br />oleae </em>(Bernard) (Hemiptera: Coccidae) reached<br />maximum during October in the first<br />and second years. Percent parasitism of <em>Metaphycus lounsburyi</em> (Howard)<br />(Hymenoptera: Encyrtidae) reached maximum during<br />October during the first and second years, with percent parasitism 34.2.1and 40.1 %<br />respectively. The predator <em>Exochomus flavipes</em> (Thunberg) (Coleoptera:<br />Coccinellidae) reached maximum during October<br />in the first and second years. The seasonal abundance of <em>Aleurolobus<br />olivinus</em> Silvestri (Hemiptera: Aleyrodidae) reached maximum during April in first and second years.<br />Percent parasitism by<em> <em>Encarsia<br />olivina</em></em> (Masi) (Hymenoptera: Aphelinidae) reached maximum during April during<br />the first and second years with<br />percent parasitism 0.6 and 0.5, respectively. The abundance of <em>Siphoninus</em> <em>phillyreae</em><br />(Haliday) (Hemiptera: Aleyrodidae) reached maximum during October in first and second years, respectively. Percent<br />parasitism by<em> <em>Encarsia inaron</em></em><br />(Walker),<br />(Hymenoptera: Aphelinidae) reached maximum during<br />October in first and second years with percent parasitism 1.8 and 2.9%,<br />respectively. The results of the present study indicated that the seasonal<br />abundance of <em>Euphyllura straminae </em>Loginova (Hemiptera: Psyllidae) reached<br />maximum during March in the first<br />and second years. The predator <em>Orius </em>sp. reached maximum during March in the first and second years.Egyptian Society of Biological SciencesEgyptian Academic Journal of Biological Sciences. A, Entomology1687-88094120110601Natural enemies of the latania scale, Hemiberlesia lataniae (Hemiptera: Diaspididae) in Egypt75901517310.21608/eajbsa.2011.15173ENMonaMoustafaPlant Protection Research Institute, Agricultural Research Center, Dokki, Giza, EgyptShaabanAbd-RabouPlant Protection Research Institute, Agricultural Research Center, Dokki, Giza, EgyptJournal Article20180929The latania scale,<em> Hemiberlesia<br />lataniae</em> (Signoret) (Hemiptera: Diaspididae) is a dangerous pest in different locations in Egypt.<br />During the present work, 17 species of natural enemies were collected from<br />samples of <em>H. latania</em>. These are: <em>Aphytis aonidiae</em> (Mercet), <em>Aphytis<br />chilensis</em> Howard, <em>Aphytis <br />lingnanensis</em> Comepre, <em>Aphytis mytilaspidis</em> (Le Baron) (Hymenoptera:<br />Aphelinidae),<em> Chilocorus bipustulatus</em> L. (Coleoptera: Coccinellidae), <em>Chrysoperlla<br />carnae </em>Steph. (Neuroptera:<br />Chrysopidae), <em>Coccinella undecimpunctata</em> L (Coleoptera: Coccinellidae), <em>Encarsia aurantii</em> (Howard), <em>Encarsia lounsburyi </em>(Berlese and Paoli) (Hymenoptera:<br />Aphelinidae),<em> Exochomus flavipes</em> Thunb. (Coleoptera: Coccinellidae)and <em>Habrolepis aspidioti</em> Compere and<br />Annecke (Hymenoptera: Encyrtidae),<em> Marietta leopardina </em>Motschulsky (Hymenoptera: Aphelinidae), <em>Orius laevigatus</em> Fieb. (Hemiptera:<br />Anthocoridae), <em>Pharoscymnus various </em>Kirsch.,<em> Rodalia cardinals</em> Muls (Coleoptera: Coccinellidae), <em>Scymnus syriacus </em>Mars. (Coleoptera: Coccinellidae) and <em>Syrphus corollae</em> Fabricius<br />(Diptera: Syrphidae). Abundance of the latania scale, <em>H. lataniae</em> natural<br />enemies were evaluated in different locations in Egypt, representing various<br />bioclimatic regions during two successive years 2009-2010. The results indicated that the parasitoid,<em> H.aspidioti</em> the most abundant species associated with <em>H. </em><em>lataniae </em>infested mango trees in Giza. The maximum rate of parasitism reached<br />9.1 and 7.3% in October, 2009 and 2010, respectively. The percentage of<br />parasitism ranged from 0.1 to 9.1% in the first year and from 0.3 to 7.3% in<br />the second year. The predator <em>C.<br />carnae </em>was the most abundant species and occurred all<br />over the years under investigation on <em>H. lataniae</em> on <em> </em>olive trees inAlexandria and the<br />maximum number was 25 individuals /60 leaves and 15 twigs in July in the first<br />year and 17 individuals/60 leaves and 15 twigs in June in the second year. Keys for parasitoids and predatorsassociated<br />with the latania scale, <em>H. lataniae</em> are included.Egyptian Society of Biological SciencesEgyptian Academic Journal of Biological Sciences. A, Entomology1687-88094120110601Study the prey preference of some aquatic insects for different snails under the laboratory conditions911011517410.21608/eajbsa.2011.15174ENMohamed Z. Y.AlyZoology Department (Entomology), Faculty of Science (Qena), South Valley UniversityIbrahim E. E..MohamedZoology Department (Entomology), Faculty of Science (Qena), South Valley UniversityShadia M.BakryZoology Department (Entomology), Faculty of Science (Qena), South Valley UniversityJournal Article20180929The study of five aquatic insects (predators),<br />adults of two hemipterous species, <em>Limnogeton<br />fieberi</em> Mayr, <em>Sphaerodema<br />urinator </em>Duf., and nymphs of three Odonatous species, <em>Anax imperator </em>Leach<em>,<br />Crocothemis erythraea</em> Brulle and <em>Ischnura pumilio</em> Charp. onfour<br />species of snails (preys) exist in its natural habitat at Qena,<em> Bulinus<br />truncates</em> Audouin, <em>Biomphalaria<br />alexandrina</em> Ehrenb, <em> Cleopatra bulimoides </em>Olivierand <em> Melanoides tuberculata</em> Muller. in non choice experiment under laboratory conditions,<br />the result indicated that the first preference <br />for attack to all predators was directed towards <em>B. truncates</em>.And the last preference was <em>B. alexandrina</em>. Except, <em>L.<br />fieberi</em>,<br />the last preference was <em>C. <br />bulimoides</em>.Egyptian Society of Biological SciencesEgyptian Academic Journal of Biological Sciences. A, Entomology1687-88094120110601The insecticidal activity of actinomycete metabolites, against the mosquitoe Culex pipiens.1031131517510.21608/eajbsa.2011.15175ENEl-Khawagh M.A.Botany and Microbiology Department, Faculty of Science (Girls) Al-Azhar Univ. Cairo- EgyptHamadah Kh.Sh.Zoology and Entomology Department, Faculty of Science Al-Azhar Univ., Cairo- Egypt.El-Sheikh T.M.Zoology and Entomology Department, Faculty of Science Al-Azhar Univ., Cairo- Egypt.Journal Article20180929Twenty seven actionmycetes were isolated from desert soil of different Egyptian sites and tested for production of insecticidal agents against the 3<sup>rd</sup> instar larvae of mosquitoes <em>Culex pipiens</em>. The obtained data exhibited that the isolate metabolites have a lethal effects. Metabolites of seven isolates cause 100 % total mortality. These isolates were identified as <em>Streptomyces fungicidicus, Streptomyces griseus, Streptomyces albus, Streptomyces rochei, Streptomyces violaceus, Streptomyces alboflavus </em>and<em> Streptomyces griseofuscus.</em> However, some isolate metabolites exhibited its insecticidal effect on the development of larvae. In addition, some pupal deformities (pupal-adult intermediate) were recorded by isolates no. A7, A8, A13, A24 & A26.Egyptian Society of Biological SciencesEgyptian Academic Journal of Biological Sciences. A, Entomology1687-88094120110601Heat Unit Requirements for Development of the Pink Bollworm Pectinophora gossypiella (Saund.)1151221517610.21608/eajbsa.2011.15176ENYones M.S.National Authority for Remote sensing and Space Sciences (NARSS), 23, Josef proztito St. Elnozha Elgedida - P.O. Box 1564 Alf maskan Cairo, EgyptAbd ElRahman H.A.Faculty of Science, Ain Shams University, EgyptAbou Hadid A.F.Minstry of Agriculture, EgyptArafat S.M.National Authority for Remote sensing and Space Sciences (NARSS), 23, Josef proztito St. Elnozha Elgedida - P.O. Box 1564 Alf maskan Cairo, EgyptDahi H.F.Plant Protection Research Institute, Giza, EgyptJournal Article20180929<span style="font-family: 'Times New Roman','serif'; font-size: 12pt; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;">The present study was carried out under four<br />constant temperatures (20, 25, 30 and 35°C each ± 1°C) when the Pink Bollworm, <em>Pectinophora<br />gossypiella</em> (Saund.) larvae,were fed on artificial diet. The time<br />required for embryogensis, larval duration and pupal duration decreased as the<br />temperatures increased from 20 to 35°C. The lower thresholds of development (t<sub>0</sub>)<br />were 9.91, 14.07, 9.57 and 12.18°C for eggs, larvae, pupae and pre-oviposition<br />period, respectively. The average accumulated heat units required for<br />development was 72.11, 166.38, 248.70 and 26.83degree-days for egg, larvae,<br />pupae and pre-oviposition period, respectively. The lower threshold of<br />development (t<sub>0</sub>) to complete a generation was 12.03°C. The average<br />accumulated heat units required for a generation was 499.71 degree-days. The<br />kind of food had non-significant effect for heat requirements. The thermal<br />units required to complete the development of different stages to complete one<br />generation, as well as helping in the design of development indexes,<br />determining the times required for these stages under fluctuating temperatures<br />in field and forecasting system for establishment and develop the non chemical<br />methods for the pink bollworm IPM program.</span>Egyptian Society of Biological SciencesEgyptian Academic Journal of Biological Sciences. A, Entomology1687-88094120110601Studies on the population fluctuations and distribution of the white mango scale insect, Aulacaspis tubercularis Newstead within the canopy of the mango trees in eastern of Delta region at the north of Egypt1231301517710.21608/eajbsa.2011.15177ENMostafa M.El-MetwallyPlant Protection Research Institute, Agricultural Research CenterS. F. M.MoussaPlant Protection Research Institute, Agricultural Research CenterNabil M.GhanimPlant Protection Research Institute, Agricultural Research CenterJournal Article20180929 Population fluctuations of the white mango scale insect, <em>Aulacaspis tubercularis</em>, Newstead, (Coccoidea: Diaspididae) had been studied in mango orchards located at two governorates, (Damietta and Gharbya) in the northern of Egyp during 2010. The obtained data revealed that<em> A. tubercularis</em> recorded three peaks at Damietta governorate; these peaks were recorded during February, June and August 2010 when 35.5, 39.1 and 127.1 individuals/leaf were recorded, respectively. At Gharbyia governorate two peaks during April 2010, (48.9 individuals/leaf) and July 2010, (32.6 individuals/leaf).The variables of temperature and relative humidity had slight effects on <em>A. tubercularis</em> population. On the other hand, <em>A. tubercularis</em> preferred south direction than the other cardinal directions (north, east and west) and center of mango tree canopy. Also, this pest preferred the upper surface of leaves during cold month (winter months) and preferred the lower surface of leaves during the hot months (summer months). The sex ratio had been recorded as <br />34.6:1 (male: females) at Damietta district, while, at Gharbayia governorate, it had been recorded as 20.5:1.Egyptian Society of Biological SciencesEgyptian Academic Journal of Biological Sciences. A, Entomology1687-88094120110601The relationship between some insect predators and aphid insects in Qena Governorate1311441517810.21608/eajbsa.2011.15178ENMohamed Z. Y.AlyZoology Department Entomology, Faculty of Science (Qena), South Valley UniversityKhaled S. M.OsmanZoology Department Entomology, Faculty of Science (Qena), South Valley UniversityIbrahim E. E.MohamedZoology Department Entomology, Faculty of Science (Qena), South Valley UniversityNahla M.WahballahZoology Department Entomology, Faculty of Science (Qena), South Valley UniversityJournal Article20180929The sweep net was used for studying the relationship between predators (<em>Hippodamia convergens</em> Guer.and <em>Chrysopa carnea</em> Stephens) and preys (<em>Aphis faba</em> Scopoli, <em>Aphis gossypii</em> Gloverand <em>Myzus persicae</em> Sulzer). Regular samples were collected weekly from Alfalfa at the two stations (A & B) in the two trapping years (March 2007- February 2009).
The seasonal distributions showed that<em> Hippodamia convergens</em> Guer.,<em>Chrysopa carnea</em> Steph.,<em> Aphis faba</em> Scopoli, <em>Aphis gossypii</em> Gloverand <em>Myzus persicae</em> Sulzer had three generations per year. The relationship between the activity of predators (<em>H. convergens</em>, <em>C. carnea</em>)and prey<em>s (A. faba, A. gossypii, M. persicae</em>) explained that the more increasing in the predators the more decreasing in the population of the preys.Egyptian Society of Biological SciencesEgyptian Academic Journal of Biological Sciences. A, Entomology1687-88094120110601Description of a new species of the genus Coccygidium de Saussure,1982 (Hymenoptera: Braconidae: Agathidinae) from Saudi Arabia.1451481517910.21608/eajbsa.2011.15179ENHamed A.GhramhDepartment of Biology, Faculty of Science, King Khalid University, P.O.Box- 9004, ABHA- 61413. Kingdom of Saudi Arabia.Journal Article20180929<em>Coccygidium hebabi</em> sp. nov., (Hymenoptera, Braconidae, Agathidinae) is described from Saudi Arabia. Morphological diagnostic characters of the new species were figured and compared with those of the related species <em>Coccygidium</em> <em>arabica</em> Ghramh, 2011.Egyptian Society of Biological SciencesEgyptian Academic Journal of Biological Sciences. A, Entomology1687-88094120110601Anomalies and asymmetry of wing venation pattern in Carniolan and Egyptian bee populations in Egypt1491611518010.21608/eajbsa.2011.15180ENAdel M. M.MazeedFaculty of Agriculture, Department of Entomology, Cairo University, Egypt,Journal Article20180929The presence of unusual wing venation and asymmetry of the forewing in Carniolan and Egyptian honeybees in Egypt were recorded. The present study indicates that, Carniolan bees had higher rate of unusual veins than the Egyptian bees. The frequency of adventitious veins was much higher than incomplete veins, and the marginal cell had the highest frequency of adventitious veins, and the first cubital cell had the lowest. The adventitious vein of the marginal cell characterized the Egyptian bees, whereas the adventitious vein of the third cubital cell characterized the Carniolan bees population. In the hind wing, the incomplete veins were absent, and only an extension of the medial vein appeared with higher frequency in Egyptian bees than in Carniolan bees. The left and right forewings of Egyptian bees are more homogenous than those of Carniolan bees. All wing coordinates exhibited significant fluctuating asymmetry in Carniolan bees, in comparison to 15 of 31 coordinates in Egyptian bees. With respect to directional asymmetry, 19 and 27 of 31 coordinates showed significant directional asymmetry in Carniolan bees from Manzala and NewValley respectively, but only 13 in Egyptian bees.Egyptian Society of Biological SciencesEgyptian Academic Journal of Biological Sciences. A, Entomology1687-88094120110601Ecological aspects of Sassetia spp. ( Coccidae: Coccoidae: Hemiptera) and thier natural enemies in Egypt1631741518110.21608/eajbsa.2011.15181ENHodaBadaryPlant Protection Research Institute, Agriculture Research Center, Dokki, Giza, EgyptJournal Article20180929In Egypt, <em>Saissetia </em>spp. (Coccidae: Coccoidae: Hemiptera) are the most dangerous soft scale insects infesting fruit trees. The aim of this work is to study the ecological aspects of <em>Saissetia </em>spp.and its natural enemies in Egypt. The result indicated that Genus <em>Saissetia </em>Deplanche comprises here by two species These are the soft brown scale, <em>Saissetia coffeae </em>(Walker) and the Mediterranean black scale, <em>Saissetia oleae </em>(Olvier). Genus <em>Saissetia </em>recorded here associated with 14 parasitoid species and 16 predator species.The seasonal abundance of <em>S. coffeae</em> was studied for two successive years from 2009-2010 on olivetrees in Northern Coast .The obtained results showed that, the insect population reached maximum during mid September (7728 and 8368/ 60 leaves/30 twigs) in first year and second year, respectively. Numbers by parasitoids <em>Metaphycus lounsburyi </em>(Howard),<em> Microterys flavus </em>(Howard) and <em>Scutellista cyanea </em>Motschulsky and a predator <em>Scymnus syriacus </em>Mars., reached maximum (31,9,3, and19 /60 leaves/30 twigs) during September, July, September and August, in the first year, respectively and 20,8,2 and 15 during September in the second year, respectively. The seasonal abundance of <em>S. oleae</em> was studied for two successive years from 2009-2010 on olivetrees in El-Arish. The obtained results showed that, the insect population reached maximum during mid of August (9729/ 60 leaves/30 twigs) in first year and mid of September (6899/ 60 leaves/30 twigs) in the second year. Numbers by the parasitoids, <em>Metaphycus helvolus </em>(Compere),<em> Microterys flavus </em>(Howard) and the predators<em>, Coccinella undecimpunctata L.</em> and <em> Exochomus flavipes </em>Thunb., reached maximum (22,5,8 and 28 /60 leaves/30 twigs) during August, August ,September and August, in the first year, respectively and 24,19,4 and 22 during September in the second year, respectively.