Egyptian Society of Biological SciencesEgyptian Academic Journal of Biological Sciences. A, Entomology1687-88093220101201Alterations in the lactate dehydrogenase activity of the desert locust Schistocerca gregaria by the wild plant Fagonia bruguieri (Zygophyllaceae).191518210.21608/eajbsa.2010.15182ENHamadah Kh.Sh.Faculty of Science, Al-Azhar University, Madenit Nasr, CairoBasiouny A.L.Faculty of Science, Al-Azhar University, Madenit Nasr, CairoGhoneim K.S.Faculty of Science, Al-Azhar University, Madenit Nasr, CairoJournal Article20180929The wild plant <em>F. bruguieri</em> extracts caused some alterations in the lactate dehydrogenase activity in haemolymph and fat body of the last instar nymphs and newly emerged adults of the desert locust <em>S. gregaria</em>. Each of two concentration levels of methanolic (7.5 and 3.7%), petroleum ether (30.0 and 15.0%) or n-butanolic extract (30.0 and 15.0%) was applied against the penultimate instar nymphs through the fresh clover leaves, <em>Medicago sativa</em>, as a food.
Unexceptionally, all <em>F. bruguieri</em> extracts induced the LDH activity in the haemolymph along the nymphal instar, irrespective of the solvent or concentration level. The strongest inducing effect was exhibited in the mid-aged nymphs (62601.3±467.4 U/L in comparison with 53696.8±467.4 U/L of control congeners) after treatment with the higher concentration level of methanolic extract. On the contrary, the LDH activity was significantly prohibited in the newly emerged adults. The most drastically inhibited enzyme activity was determined (57744.3±467.4 U/L, compared to 62871.2±934.7 U/L of control congeners) after nymphal treatment with higher concentration level of n-butanolic extract.
With regard to the fat body, all <em>F. bruguieri</em> extracts prohibited LDH activity along the nymphs instar, irrespective of the concentration level. The most dramatically reduced activity was expressed in (9166.4±119.0 U/L vs. 22839.5±289.1 U/L of control congeners) after treatment with the lower concentration level of n-butanolic extract. In contrast, the plant extracts pronouncedly enhanced the enzyme activity in the fat body of adults, regardless to the extract. The most stimulatory effect was exhibited after treatment of the nymphs with the lower concentration level of n-butanolic extract.Egyptian Society of Biological SciencesEgyptian Academic Journal of Biological Sciences. A, Entomology1687-88093220101201Effect of interaction of bioinsecticides and a carbamate insecticide on the larvae of the cotton leafworm, Spodoptera littoralis (boisd.), by successive applications11171518310.21608/eajbsa.2010.15183ENAbd El-Kareem S. M.I.Plant Protection Research Institute, Dokki, GizaEl-Akad A.S.Faculty of Science, Ain Shams University, Abbasia, CairoHussein M.A.Faculty of Science, Ain Shams University, Abbasia, CairoEl-Banna A.A.Faculty of Science, Ain Shams University, Abbasia, CairoFahmy A.R.Faculty of Science, Ain Shams University, Abbasia, CairoBekheit H.K.Plant Protection Research Institute, Dokki, GizaJournal Article20180929Four bioinsecticides and a carbamate insecticide were bioassayed against the cotton leaf worm, <em>Spodoptera littoralis</em>, larvae by separate and<strong>/</strong>or successive applications. The obtained results reveal that Protecto was the most potent bioinsecticide compared with Viruset, Profect, and Bioranza. The obtained data also prove that the chemical insecticide, Kuik, was very toxic to the tested larvae. Successive applications with the bioinsecticides at different concentrations (LC<sub>25</sub>, LC<sub>50</sub>, and LC<sub>90</sub>) then LC<sub>25</sub> of Kuik showed very promising results manifested by an outstanding increase in second and fourth larval instar mortality. Treatment of 2<sup>nd</sup> and 4<sup>th</sup> instar larvae with Protecto, Viruset, and Profect prolonged larval duration while treatment with Bioranza reduced larval duration. It was also observed that egg number and hatchability were affected by bioinsecticidal treatment.Egyptian Society of Biological SciencesEgyptian Academic Journal of Biological Sciences. A, Entomology1687-88093220101201Pilot study of population density and biodiversity index of Mantodea fauna in El-Fayoum governorate- Egypt19261518410.21608/eajbsa.2010.15184ENRabab F.SawabyDepartment of Entomology, Faculty of Sciences, Ain Shams UniversityHayamEl-HamoulyDepartment of Entomology, Faculty of Sciences, Ain Shams UniversityMohammad G. El-DinNasserDepartment of Entomology, Faculty of Sciences, Ain Shams UniversityJournal Article20180929<span style="line-height: 115%; font-family: 'Times New Roman','serif'; font-size: 12pt; mso-fareast-font-family: Calibri; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;">The<br />present work was carried out to make a pilot study of mantis population using<br />mark release recapture technique in El-Fayoum governorate through the year of<br />2008 to estimate the population density and the biodiversity of some mantis fauna.<br />This study form a nucleus of more extensive studies on mantis ecology which is<br />still not clear and shed the light on the nature of mantis population and some<br />problems facing this beautiful insect in Egypt. </span>Egyptian Society of Biological SciencesEgyptian Academic Journal of Biological Sciences. A, Entomology1687-88093220101201Description of a new phytoseiid mite species (Acari: Phytoseiidae) from Egypt with a special reference to its biology27361518510.21608/eajbsa.2010.15185ENAmal H.M.RomeihZoology and Agricultural Nematology Department, Faculty of Agriculture, Cairo University, Giza, EgyptReham I.A.Abo-ShnafVegetable and Ornamental Acarology Department, Plant Protection Research Institute, Agricultural Research Centre, Giza, Egypt0000-0002-4033-9063M. F.HassanZoology and Agricultural Nematology Department, Faculty of Agriculture, Cairo University, Giza, Egypt.Marguerite A.RizkVegetable and Ornamental Acarology Department, Plant Protection Research Institute, Agricultural Research Centre, Giza, Egypt.Journal Article20180929The adult female and male of the phytoesiid mite, <em>Euseius plumerii</em> Abo-Shanf & Romeih sp. n. were collected from leaves of both White Frangipani (<em>Plumeria alba</em>) and Rose (<em>Rosa hybrida</em> cv. Huddly) at Giza Governorate, Egypt, then identified and described. Furthermore, the description of immature stages was also presented. The life history of this new species were documented on the two spotted-spider mite, <em>Tetranychus urticae</em> Koch movable stages which infested leaves of rose at three temperature degrees (20, 25 and 30±2 ºC) and relative humidity of 70±5%. The results proved that, 30ºC was the most suitable temperature degree which accelerated the life cycle, gave highly egg production and greatly prey consumption.Egyptian Society of Biological SciencesEgyptian Academic Journal of Biological Sciences. A, Entomology1687-88093220101201Monomorium moathi sp. n., a new ant species from Yemen (Hymenoptera: Formicidae) related to the salomonis-group37421518710.21608/eajbsa.2010.15187ENAbdulrahman S.AldawoodPlant Protection Department, College of Food and Agriculture Sciences, King Saud University, Riyadh 11451, PO Box 2460, Kingdom of Saudi Arabia.Mostafa R.SharafPlant Protection Department, College of Food and Agriculture Sciences, King Saud University, Riyadh 11451, PO Box 2460, Kingdom of Saudi Arabia.Cedric A.CollingwoodPlant Protection Department, College of Food and Agriculture Sciences, King Saud University, Riyadh 11451, PO Box 2460, Kingdom of Saudi Arabia.Journal Article20180929<em>Monomorium moathi </em>sp. n. is described and illustrated from Yemen based on the worker caste. This species belongs to the <em>Monomorium salomonis</em>-group, with closest resemblance to <em>M. areniphilum</em> Santschi, 1911. It is distinguished from the latter species by the following characters: Eyes oval, relatively large with eleven ommatidia in the longest row; Petiole node high and pointed in profile; Head, mesosoma and waist distinctly shagreenate granulate. Gaster finely shagreenate. Head dorsum, mesosoma, petiole, postpetiole and gastral tergites without hairs.Egyptian Society of Biological SciencesEgyptian Academic Journal of Biological Sciences. A, Entomology1687-88093220101201Protease Mediated Resistance Mechanism to Cry1C and Vip3A in Spodoptera litura43501518810.21608/eajbsa.2010.15188ENU. P.BarkhadeDepartment of Entomology
Dr. Panjabrao Deshmukh Agricultural University, Akola M.S. IndiaA. S.ThakareDepartment of Entomology
Dr. Panjabrao Deshmukh Agricultural University, Akola M.S. IndiaJournal Article20180929The present study was undertaken to understand the protease mediated resistance mechanism of <em>Cry1C</em> and <em>Vip3A</em> in <em>S. litura. </em> Proteases play an important role for convertion of protoxins to active toxin. Hence laboratory selection of <em>Spodoptera litura</em> (Fab.) with <em>Cry1C</em> and <em>Vip3A</em> was done for eight generations to develop resistance, which developed 30.32 and 285.47 fold resistance respectively. Fourth instar larvae from nine generation of <em>S. litura</em> were dissected in an ice-cold 20 mM Tris-HCl buffer (pH7). Major midgut proteases viz, azocaseinolytic, tryptic and chymotryptic were quantified by using azocasein, trypsin and chymotrypsin as substrate. Results revealed that lowest azocaseinolytic activity 0.896 U/gut was observed in <em>Cry1C</em> resistant strain of <em>S. litura </em>which was 2.57 fold less than susceptible. Similarly, <em>Vip3A</em> resistant strain recorded 1.08 U/gut azocaseinolytic activities, which was 2.13 fold less than susceptible strain of <em>S. litura</em>. There was 2.26 and 3.35 fold decrease in activity respectively in <em>Cry1C</em> resistant and <em>Vip3A</em> resistant <em>S. litura </em>over susceptible strains. Chymotryptic activity in midgut of susceptible stain of <em>S. litura </em>was 1.13 U/gut, whereas in <em>Cry1C</em> resistant strain it was 0.512 U/gut which was 2.20 fold less over susceptible strain. Similarly, in <em>Vip3A</em> resistant strain, lower chymotryptic activity was recorded as compared to susceptible, which was 1.66 fold less than susceptible strain. Maximum five protease isoforms were identified in the electrophoretic profile of susceptible <em>S. litura</em>. Remarkable variation was observed between susceptible and resistant <em>S. litura</em> for protease isoform. The <em>Cry1C</em> resistant <em>S. litura</em> homogenate showed three bands viz., Pro3, Pro4 and Pro5 while only two bands viz., Pro3 and Pro5 in <em>Vip3A</em> resistant homogenate of <em>S. litura</em> whereas five bands were observed in susceptible strain of <em>S. litura</em>.Egyptian Society of Biological SciencesEgyptian Academic Journal of Biological Sciences. A, Entomology1687-88093220101201Cladistic analysis of Egyptian horse flies (Diptera: Tabanidae) based on morphological data51621518910.21608/eajbsa.2010.15189ENGawhara M. M.Abu El-HassanDepartment of Entomology, Faculty of Science, Ain Shams University, Abbassia- Cairo, EgyptHaitham B. M.BadrawyDepartment of Entomology, Faculty of Science, Ain Shams University, Abbassia- Cairo, EgyptSalwa K.MohammadDepartment of Entomology, Faculty of Science, Ain Shams University, Abbassia- Cairo, EgyptHassan H.FadlDepartment of Entomology, Faculty of Science, Ain Shams University, Abbassia- Cairo, EgyptJournal Article20180929The family Tabanidae is one of the important families of superfamily Tabanoidea, having medical and veterinary importance. In Egypt, there is no strict cladistic approach on tabanid flies phylogeny yet. The 20 available Egyptian tabanids under 2 subfamilies are analyzed cladistically. Cladistic analysis is based on 91 morphological characters depending on Single linkage, UPGMA, Complete linkage clustering methods (Cophenetic correlation value). This produces a well-resolved and firmly supported phylogenetic hypothesis on the generic relationships. Based on our phylogenetic results, the revised classification of examined taxa is consistent with the conventional classification.Egyptian Society of Biological SciencesEgyptian Academic Journal of Biological Sciences. A, Entomology1687-88093220101201Prevalence of dipterous flies with veterinary importance in selected sheep's farms and slaughter houses in Jazan, Saudi Arabia63731519010.21608/eajbsa.2010.15190ENHanan A. M.BoslyBiology Department, Faculty of Science, Jazan University, Jazan, Saudia ArabiaJournal Article20180929A survey for Dipterous flies was conducted in 3 private sheep's' farms and 3 governmental slaughter houses at Abu Arish, Alquayiyah, (Eastern Jazan); Duhaygah and Mihliyah (Northern Jazan); Mizhirah and Industrial City (Southern Jazan). Each locality was visited weekly to collect the flies using aerial sweeping net. A total of 5312 specimens consisting of 12 species, 1 subspecies within 8 genera, belonging to 7 families: Calliphoridae, Sarcophagidae, Muscidae, Ceratopogonidae, Utilidae, Sphaeroceridae, and Chloropidae were recorded. Among the total flies collected in all localities <em>Coproica vegans</em> (Haliday) was the most abundant species followed by <em>Anatricus erianceus</em> Loew and they represented 72.74% and 21.71% of the total collection, respectively. On the other hand, <em>Culicoides imicola</em> Kieffer,<em> Sarcophaga ruficornis</em> (Fabricius) and <em>Musca lucidula</em> (Loew) were recorded in few numbers and they represented 0.09%- 0.1% of the total collection. <em>Physiphora alceae</em> (Preyssler) and <em>Musca sorbens </em>Wiedemann were recorded only from slaughter houses. In addtion,<em> Sarcophaga dux</em> Thompson is recorded for the first time from Jazan during the present investigation. For accurate location of sampling sites, details of the selected area such as longitude, latitude and altitude were computed using the global positioning system (GPS).Egyptian Society of Biological SciencesEgyptian Academic Journal of Biological Sciences. A, Entomology1687-88093220101201A mathematical model for estimating the LC50 (or LD50) among an insect life cycle75811519110.21608/eajbsa.2010.15191ENReda F. A.BakrAin Shams University, Faculty of Science, Entomology DepartmentAhmad M.KamelGerman University in Cairo, Mathematics DepartmentSayed A.ShebaAin Shams University, Faculty of Science, Chamistry DepartmentDoaa R.Abdel-HaleemAin Shams University, Faculty of Science, Entomology DepartmentJournal Article20180929In this study, a mathematical model is made to estimate the median lethal concentration or dose (LC<sub>50</sub> or LD<sub>50</sub>). The model is based on the data of different insecticide groups, where each one is represented by the effect of three insecticides over different orders of insects by using different application technique. The trend of change of the LC<sub>50 </sub>or LD<sub>50</sub> is observed among the insect life cycle for each group of insecticides. It is shown that for an insecticide group, there is a clear trend for the change of the LC<sub>50 </sub>(or LD<sub>50</sub>) when going from an age stage to another. That trend is simulated for each group to predict the LC<sub>50</sub> or LD<sub>50</sub> at an age stage by knowing it at another stage and method of treatment used.Egyptian Society of Biological SciencesEgyptian Academic Journal of Biological Sciences. A, Entomology1687-88093220101201Diversity of some aquatic and aerial odonatous dwellers of the River Nile in Upper Egypt83931519310.21608/eajbsa.2010.15193ENMohamed Z. Y.AlyDepartment of Zoology, Faculty of Science, South Valley UniversityKhalid S. M.OsmanDepartment of Zoology, Faculty of Science, South Valley UniversityIbraheem E.E.Department of Zoology, Faculty of Science, South Valley UniversityAhmed M.NourDepartment of Zoology, Faculty of Science, South Valley UniversityJournal Article20180929The present work is aimed to study diversity of odonatous adults and naiads species encountered in the River Nile current throughout Upper Egypt. This study has been curried out in five stations for two sequence years. The odonatous diversity was investigated by monitoring numerical, locality abundance, and periodical abundance diversity.
The numerical diversity showed eight odonatous species. Moreover, the adults (54.75% of the total catches) dominated the naiads (45.25%) as well as Lestidae and<em> Lestes viridis</em> on the levels of the families and species.
Regarding locality diversity, the highest abundance of adults and nymphs were recorded in two different sites (El-Mashtal and BananaIsland stations, respectively). Conversely, the lowest populations were recorded in Menshaa station.
On the other hand, the periodical abundance diversity indicated to importance of the two seasons, winter and summer during which the highest seasonal abundance for the naiads and the adults, respectively, in the most studied stations. In contrast, the minimum abundances of the naiads and adults were recorded during spring and winter, respectively. Thus, it could be seen seasonal abundant interference for both nymphs and adults, particularly, during spring. This result may be due to the long ages of the nymphs.
The variation of the seasonal abundance exceptive stations may not affect on the importance of winter and spring as the periods of the highest and lowest seasonal abundances because perhaps these stations, especially stations Ma, underwent some of the human activities of the commercial ports.Egyptian Society of Biological SciencesEgyptian Academic Journal of Biological Sciences. A, Entomology1687-88093220101201Biological effects of some insect growth regulators on the house fly, musca domestica (diptera: muscidae).951051519510.21608/eajbsa.2010.15195ENAbo El-Mahasen M.M.Zool. Dep., Fac. of Science, Menoufiya Univ., Shebin El-KomAssar A.A.Zool. Dep., Fac. of Science, Menoufiya Univ., Shebin El-KomKhalil M.E.Zool. Dep., Fac. of Science, Menoufiya Univ., Shebin El-KomMahmoud S.H.Zool. Dep., Fac. of Science, Menoufiya Univ., Shebin El-KomJournal Article20180929The current work was carried out to evaluate the biological effects of five insect growth regulators; applaud (buprofezin), consult (hexaflumuron) and match (lufenuron) as chitin synthesis inhibitors (CSIs), mimic (tebufenozide) as ecdysone agonist (EA) and admiral (pyriproxyfen) as juvenile hormone analogue (JHA) against the housefly <em>M. domestica</em>. The IGRs were applied by feeding the 1<sup>st</sup> instar larvae on diets mixed with the selected IGRs at different concentrations (10, 100, 1000 and 2000 ppm).
The results demonstrated that mimic and admiral were the most effective compounds and induced 100 % larval mortalities at 2000 ppm. Mimic was the most toxic compound and its toxicity index was 100.The tested IGRs induced a significant prolongation in the larval and pupal duration.The percent pupation was highly decreased compared to the control. All the tested IGRs induced a reduction in the pupal weight as well as a reduction in the adult emergence, which was completely inhibited at 1000, and 2000 ppm. All the tested IGRs caused a significant decrease on the longevity of both sexes as compared to the control. The fecundity and fertility greatly decreased and the sterility increased with the all tested IGRs. Admiral was more effective than the others.Egyptian Society of Biological SciencesEgyptian Academic Journal of Biological Sciences. A, Entomology1687-88093220101201Insects attack citrus trees in Al- Qalyubiyah Governorate, Eygypt1071171519610.21608/eajbsa.2010.15196ENAida S.KamelEntomology Department, faculty of science, Benha UniversityJournal Article20180929This study was aimed to determine the recent status of insect pests infest the citrus trees (Baladi and Navel Orange) at Qalyubiyah governorate, Egypt. Study was conducted during visiting two orchards in Tukh area twice a month for nineteen continuous months. Seasonal abundance of the dominant species of insects pests infesting citrus trees and their natural enemies were also investigated.
Thirteen insects pests species were found. They werebelonging to families:<em> </em>Aphididae, Coccidae, Margarodidae, Diaspididae, Anthomyi, Aleyrodidae, Thripidae and Drosophilidae. Aphids were the most common pest attacking citrus trees. Its peak of abundance was between March and first week of April followed by significant numbers of scale insects and leaf miner, which were found in most months of the year. The natural enemies of citrus pests species were belonging to these taxonomic groups: Neuroptera, Hemiptera and Coleoptera, Hymenoptera and Acari.Egyptian Society of Biological SciencesEgyptian Academic Journal of Biological Sciences. A, Entomology1687-88093220101201Taxonomic and ecological studies on the new record, Ceroplastes cirripediformis Comstock, 1881, (Coccidae: Taxonomic and ecological studies on the new record, Ceroplastes cirripediformis Comstock, 1881, (Coccidae: Homoptera) at Qaliobiya governorate.1191221519810.21608/eajbsa.2010.15198ENReda F.A.BakrEntomolgy Department, Faculty of Science, Ain Shams University, Cairo, EgyptRawda M.BadawyEntomolgy Department, Faculty of Science, Ain Shams University, Cairo, EgyptLaila S.HamoodaEntomolgy Department, Faculty of Science, Ain Shams University, Cairo, EgyptHelmyE.Plant Protection Research Institute, Ministry of Agriculture, Dokki,EgyptSahar A.AttiaPlant Protection Research Institute, Ministry of Agriculture, Dokki,EgyptJournal Article20180929<em> Ceroplastes cirripediformis </em><em>Comstock is collected for the first time from Egypt; it is a serious soft scale pest on guava trees, with a high occurrence reached to 371 individuals/ leaf in the highest generation at mid November 2006 at Qaliobiya governorate.</em> A<em> key with figures and illustrations was constructed to differentiate Ceroplastes</em><em> Egyptian species. Moreover the seasonal fluctuation of different stages of this newly recorded species is included, where the pest total population and nymphal stage had two annual peaks per year. Also the pest had two annual generations per year on mid February and November. The associated parasite, </em><em>Tetrastichus ceroplastae </em>(Girault) <em>is </em>collected and identified<em>. The relationship between this pest and its parasitic & climatic factors is studied to help in the integrated pest control management. </em>Egyptian Society of Biological SciencesEgyptian Academic Journal of Biological Sciences. A, Entomology1687-88093220101201Effects of the wild plant, Fagonia bruguieri on the adult performance and phase transition of schistocerca gregaria (orthoptera: acrididae)1331471520010.21608/eajbsa.2010.15200ENSamira A.AlyFaculty of Science, Ain Shams University, Cairo, EgyptAhmed S.ElEbiarieFaculty of Science, Helwan University, Cairo, EgyptKhalid S.HamadahFaculty of Science, Al-Azhar University, Cairo, EgyptJournal Article20180929The treatment of penultimate and last nymphal instar of <em>Schistocerca gregaria</em> with <em>Fagonia bruguieri</em> resulted in a partial blocking of the adult emergence in proportion to the concentration level, irrespective of the type of the extract. A dose-dependent suppression of adult survival potential was determined after treatment of penultimate instar nymphs. Similar dose-dependent mortality of the emerged adults was recorded after treatment of last nymphal instar with the methanolic and n-butanolic extracts.
With regard to the adult morphogenesis after treatment of penultimate instar nymphs with different <em>F. bruguieri</em> extracts, the most deranging effect was exhibited by methanolic extract. After treatment of last nymphal instar, the adult morphogenesis was considerably affected by both the methanolic extract and n-butanolic extract, parallel to the concentration.
Irrespective of the time of nymphal treatment, sexual maturity of <em>S. gregaria</em> adults was hastened by both the methanolic extract and petroleum ether extract of <em>F. bruguieri</em>, especially at the higher two concentration levels. In contrast, n-butanolic extract exhibited a delaying effect on sexual maturity, especially at the higher two concentration levels.
Significantly shortened longevity was recorded after treatment of penultimate instar nymphs with methanolic and petroleum ether extracts but prolonged longevity was observed after treatment with n-butanolic extract. Treatment of the last nymphal instar with n-butanolic extract, especially at the higher two concentration levels resulted in accelerated adult aging (as indicated by remarkably shortened longevity).
A solitarization tendency of the gregarious adults was activated after nymphal treatment with the n-butanolic extract because some adults appeared with greenish color of both the external morphology and haemolymph.Egyptian Society of Biological SciencesEgyptian Academic Journal of Biological Sciences. A, Entomology1687-88093220101201A new predatory mite species of the genus Eustigmaeus (Stigmaeidae: Acari) from Punjab, Pakistan1491531520110.21608/eajbsa.2010.15201ENBilal SaeedKhanDeptt. of Agri. Entomology, University of Agricult., FaisalabadMuhammadAfzalCollege of Agriculture, University of Sargodha, SargodhaMuhammad HamidBashirDepartment of Agri. Entomology, University of Agriculture, Faisalabad.Journal Article20180929Mites belonging to the family stigmaeidae are known predators against the phytophagous mites and small soft-bodied insects. A survey was conducted to explore the predatory mite fauna of Punjab (Pakistan), a new predatory mite species of genus <em>Eustigmaeus</em><em>(Eustigmaeus hooriaae)</em>was collected from Ameen Pur Bangla, 20 miles away north from district Faisalabad (Punjab) from <em>Triticum aestivum</em> (straw husk) by Bilal Saeed Khan and described here in this manuscript. Specimens were mounted on the glass slides with the help of Hoyer’s medium. The drawings of different body parts were made with the help of an ocular grid in a high power microscope. These specimens were compared with the already described species. Ceremonial description, illustration of main body parts, host range and comparison remarks are also given. Eighteen (18) paratype females were collected. Twelve (12) from the same collection data and six (6) were collected from R.Y.Khan from leaf litter. All specimens were deposited in the Acarology Research Laboratory, Department of Agri. Entomology, University of Agriculture, Faisalabad, Pakistan.Egyptian Society of Biological SciencesEgyptian Academic Journal of Biological Sciences. A, Entomology1687-88093220101201Total egg production and duration of development of the Callosobruchus maculatus (L.), (Coleoptera: Bruchidae)1551621520210.21608/eajbsa.2010.15202ENYahya M.AbboudDepartment of Biology, Faculty of Science, Sana"â University, Sana"a , Republic of YemenJournal Article20180929All numbers of eggs produced by individual Yemeni females of <em>Callosobruchus maculates</em> (F) on various numbers of cowpeas were calculated. Yemeni females laid around 29, 62 or 29, 66 when supplied with one cowpea, but when provided with more than one and the egg production increased 31,7. Very rare two adults emerged from a single cowpea regardless the number of eggs laid on the cowpea. The daily quantity of eggs produced declined when females provided daily with new cowpeas and removed the old ones, which had access to the females. Developmental durations varied between individuals and the lowest and highest in developmental duration were observed.