Pub Date : 2022-12-31DOI: 10.33307/entomon.v47i4.806
B. Subba, N. Chaudhuri, S. Senapati
The influence of three seasons namely pre-kharif (Feb-May), kharif (May-Aug) and post-kharif (Aug-Nov) on the biology of jassid on okra under natural climatic conditions revealed that the developmental periods showed differences over seasons. The total nymphal period was longest in post-kharif (8.90±0.91days) followed pre-kharif (7.15±0.75 days) and the shortest during kharif (6.60±0.52 days). The longest total life span was observed in post-kharif (38.29±2.79) followed by pre-kharif (34.90±1.47 days) and shortest during kharif (33.75±1.89 days). Maximum eggs was laid in post-kharif (18.70±2.45 eggs/ female), followed by the pre-kharif (17.20±1.62 eggs/ female) and least in kharif (16.20±1.55 eggs/ female).
{"title":"Growth and development of Amrasca biguttula biguttula Ishida (Homoptera, Cicadellidae) during different seasons on okra","authors":"B. Subba, N. Chaudhuri, S. Senapati","doi":"10.33307/entomon.v47i4.806","DOIUrl":"https://doi.org/10.33307/entomon.v47i4.806","url":null,"abstract":"The influence of three seasons namely pre-kharif (Feb-May), kharif (May-Aug) and post-kharif (Aug-Nov) on the biology of jassid on okra under natural climatic conditions revealed that the developmental periods showed differences over seasons. The total nymphal period was longest in post-kharif (8.90±0.91days) followed pre-kharif (7.15±0.75 days) and the shortest during kharif (6.60±0.52 days). The longest total life span was observed in post-kharif (38.29±2.79) followed by pre-kharif (34.90±1.47 days) and shortest during kharif (33.75±1.89 days). Maximum eggs was laid in post-kharif (18.70±2.45 eggs/ female), followed by the pre-kharif (17.20±1.62 eggs/ female) and least in kharif (16.20±1.55 eggs/ female).","PeriodicalId":87603,"journal":{"name":"Entomon; internationale Zeitschrift fur die gesamte Insektenkunde","volume":"39 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77700604","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-31DOI: 10.33307/entomon.v47i4.797
Snehal D. Londhe, A. K. Chougale
Magnetic field influences the physiology and development of living organisms, depending up on the strength of magnetic field. In silkworm, it enhances enzymes, proteins and nucleic acids of silk gland. On this line, histology of silk gland of silkworm Bombyx mori L. (Lepidoptera, Bombycidae) was studied after its magnetization, at 3500 G and 4000 G separately. Exposure of silkworm to magnetic field resulted in increase in diameter of its silk gland/lumen of silk gland/space occupied by secretory substance (silk protein-fibroin). The studies showed 46.15 and 21.19 per cent increase in diameter of silk gland of larvae exposed to 3500 G and 4000 G magnetic field respectively than that in control larvae. Larvae treated with 3500 G magnetic field and 4000 G magnetic field exhibited 51 per cent gain and 1.29 per cent loss in the size of secretory substance respectively than that of control group larvae. Cellular thickness is more in magnetized larvae than that of control larvae. This is favourable for sericulture.
{"title":"Effects of magnetic field on the histology of silk gland of silkworm, Bombyx mori L. (Lepidoptera, Bombycidae)","authors":"Snehal D. Londhe, A. K. Chougale","doi":"10.33307/entomon.v47i4.797","DOIUrl":"https://doi.org/10.33307/entomon.v47i4.797","url":null,"abstract":"Magnetic field influences the physiology and development of living organisms, depending up on the strength of magnetic field. In silkworm, it enhances enzymes, proteins and nucleic acids of silk gland. On this line, histology of silk gland of silkworm Bombyx mori L. (Lepidoptera, Bombycidae) was studied after its magnetization, at 3500 G and 4000 G separately. Exposure of silkworm to magnetic field resulted in increase in diameter of its silk gland/lumen of silk gland/space occupied by secretory substance (silk protein-fibroin). The studies showed 46.15 and 21.19 per cent increase in diameter of silk gland of larvae exposed to 3500 G and 4000 G magnetic field respectively than that in control larvae. Larvae treated with 3500 G magnetic field and 4000 G magnetic field exhibited 51 per cent gain and 1.29 per cent loss in the size of secretory substance respectively than that of control group larvae. Cellular thickness is more in magnetized larvae than that of control larvae. This is favourable for sericulture.","PeriodicalId":87603,"journal":{"name":"Entomon; internationale Zeitschrift fur die gesamte Insektenkunde","volume":"51 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73002571","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-31DOI: 10.33307/entomon.v47i4.803
L.R. Bhavya, M. Kumar
Soil collembolans are key model organisms for ecotoxicological studies and play an inevitable role in litter degradation, nutrient cycling, energy flow and various ecosystem functioning. The detritivore collembolan, yphoderus javanus, was used to determine the toxicity of insecticide formulation cyfluthrin under laboratory conditions. The impacts of insecticide cyfluthrin on life history parameters of C. javanus revealed that mortality rates increased with increasing concentration. The fecundity rates, the number of eggs laid, the number of juveniles’ emergence and longevity were found to be decreased drastically with insecticidal exposure. The high mortality of soil collembolans deducts the decomposition rate of organic matter and leaf litter, thereby reducing the fertility of soil.
{"title":"Adverse effects of the cyfluthrin on Cyphoderus javanus Borner (Collembola) in soil","authors":"L.R. Bhavya, M. Kumar","doi":"10.33307/entomon.v47i4.803","DOIUrl":"https://doi.org/10.33307/entomon.v47i4.803","url":null,"abstract":"Soil collembolans are key model organisms for ecotoxicological studies and play an inevitable role in litter degradation, nutrient cycling, energy flow and various ecosystem functioning. The detritivore collembolan, yphoderus javanus, was used to determine the toxicity of insecticide formulation cyfluthrin under laboratory conditions. The impacts of insecticide cyfluthrin on life history parameters of C. javanus revealed that mortality rates increased with increasing concentration. The fecundity rates, the number of eggs laid, the number of juveniles’ emergence and longevity were found to be decreased drastically with insecticidal exposure. The high mortality of soil collembolans deducts the decomposition rate of organic matter and leaf litter, thereby reducing the fertility of soil.","PeriodicalId":87603,"journal":{"name":"Entomon; internationale Zeitschrift fur die gesamte Insektenkunde","volume":"237 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77044146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-31DOI: 10.33307/entomon.v47i4.802
M. Rosi, T. Sivaruban, Srinivasan Pandiarajan, S. Barathy, Rajasekaran Isack
The study describes the diversity and community structure of Ephemeroptera, Plecoptera and Trichoptera (EPT) taxa present in the Puliyancholai stream of the Kolli hills, Eastern Ghats. During the six months of study 397 specimens from 11 genera under seven families were collected. Ephemeroptera was the most dominant species followed by Trichoptera and Plecoptera. Various alpha biodiversity indices showed that the Simpson’s index was maximum in October (0.878) and minimum in December (0.832). The Shannon-Weiner index was maximum in December (2.277) and minimum in January (2.151). Evenness index was most noteworthy in October (0.872) and it was least in December (0.725). Temperature, pH, calcium and magnesium are major stressors in governing the EPT community of Kolli hills, according to Canonical Correspondence Analysis (CCA).
{"title":"Diversity and community structure of Ephemeroptera, Plecoptera and Trichoptera insects in Kolli hills of the Eastern Ghats, India","authors":"M. Rosi, T. Sivaruban, Srinivasan Pandiarajan, S. Barathy, Rajasekaran Isack","doi":"10.33307/entomon.v47i4.802","DOIUrl":"https://doi.org/10.33307/entomon.v47i4.802","url":null,"abstract":"The study describes the diversity and community structure of Ephemeroptera, Plecoptera and Trichoptera (EPT) taxa present in the Puliyancholai stream of the Kolli hills, Eastern Ghats. During the six months of study 397 specimens from 11 genera under seven families were collected. Ephemeroptera was the most dominant species followed by Trichoptera and Plecoptera. Various alpha biodiversity indices showed that the Simpson’s index was maximum in October (0.878) and minimum in December (0.832). The Shannon-Weiner index was maximum in December (2.277) and minimum in January (2.151). Evenness index was most noteworthy in October (0.872) and it was least in December (0.725). Temperature, pH, calcium and magnesium are major stressors in governing the EPT community of Kolli hills, according to Canonical Correspondence Analysis (CCA).","PeriodicalId":87603,"journal":{"name":"Entomon; internationale Zeitschrift fur die gesamte Insektenkunde","volume":"39 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72695735","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-31DOI: 10.33307/entomon.v47i4.807
M. Rajesh, R. Kishore, A. Gangadharan, M. Athira
Strigoptera bimaculata (L., 1758) is a tropical Buprestid (jewel beetles) found throughout Southeast Asia to Northern Australia. Adult S. bimaculata was observed in The American College in Madurai, Tamil Nadu, India. The present record extends its known distribution range further towards the west being the western most occurrence of this species in the world.
{"title":"The record of the Jewel beetle, Strigoptera bimaculata (L., 1758) (Coleoptera, Buprestidae) from India","authors":"M. Rajesh, R. Kishore, A. Gangadharan, M. Athira","doi":"10.33307/entomon.v47i4.807","DOIUrl":"https://doi.org/10.33307/entomon.v47i4.807","url":null,"abstract":"Strigoptera bimaculata (L., 1758) is a tropical Buprestid (jewel beetles) found throughout Southeast Asia to Northern Australia. Adult S. bimaculata was observed in The American College in Madurai, Tamil Nadu, India. The present record extends its known distribution range further towards the west being the western most occurrence of this species in the world.","PeriodicalId":87603,"journal":{"name":"Entomon; internationale Zeitschrift fur die gesamte Insektenkunde","volume":"16 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88051318","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-31DOI: 10.33307/entomon.v47i4.794
S. Kaushik, N. Sharma, Shashank Garg, A. Bansal, T. Thomas
Leaf extracts of Calotropis procera were tested against late third instar larvae of Aedes aegypti mosquito. Soxhlet extraction of the dried leaves powder with polar and non-polar solvents (water, ethanol, hexane and acetone) was carried out. Larvicidal effects of plant extracts were observed after 24h of exposure. The control group showed no mortality. Ethanolic extract was found more toxic with LC50 1.923 ppm and LC90 8.83 ppm followed by aqueous extract (LC50 2.607 ppm and LC90 11.903 ppm), acetone extract (LC50 4.1 ppm and LC90 16.471 ppm) and hexane extract (LC50 5.364 ppm and LC90 31.759 ppm). As the ethanolic extract of C. procera leaves showed significant larvicidal properties, it can be used as an eco-friendly alternative for the control of Ae. aegypti vector.
{"title":"Larvicidal effects of Calotropis procera leaf extracts against Aedes aegypti (L), vector of dengue fever","authors":"S. Kaushik, N. Sharma, Shashank Garg, A. Bansal, T. Thomas","doi":"10.33307/entomon.v47i4.794","DOIUrl":"https://doi.org/10.33307/entomon.v47i4.794","url":null,"abstract":"Leaf extracts of Calotropis procera were tested against late third instar larvae of Aedes aegypti mosquito. Soxhlet extraction of the dried leaves powder with polar and non-polar solvents (water, ethanol, hexane and acetone) was carried out. Larvicidal effects of plant extracts were observed after 24h of exposure. The control group showed no mortality. Ethanolic extract was found more toxic with LC50 1.923 ppm and LC90 8.83 ppm followed by aqueous extract (LC50 2.607 ppm and LC90 11.903 ppm), acetone extract (LC50 4.1 ppm and LC90 16.471 ppm) and hexane extract (LC50 5.364 ppm and LC90 31.759 ppm). As the ethanolic extract of C. procera leaves showed significant larvicidal properties, it can be used as an eco-friendly alternative for the control of Ae. aegypti vector.","PeriodicalId":87603,"journal":{"name":"Entomon; internationale Zeitschrift fur die gesamte Insektenkunde","volume":"7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89318935","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-31DOI: 10.33307/entomon.v47i4.800
K. Jyothylakshmi, K. M. Abraham, S. Nandakumar, E. Jehamalar
The riffle bug, Rhagovelia (Neorhagovelia) nilgiriensis Thirumalai, 1994 is reported for the first time from Kerala. They are very small, black bugs, commonly encountered in streams with moderate to swift flow. The current report of R. nilgiriensis from Kerala extends its geographic distribution which was earlier reported only from its type locality Nilgiris, Tamil Nadu, India. The present inventory is crucial, as it is the pioneer report of nilgiriensis from Kerala and the second record of the same from India.
{"title":"New record of riffle bug Rhagovelia (Neorhagovelia) nilgiriensis Thirumalai, 1994 (Hemiptera: Heteroptera: Veliidae) from Kerala, India","authors":"K. Jyothylakshmi, K. M. Abraham, S. Nandakumar, E. Jehamalar","doi":"10.33307/entomon.v47i4.800","DOIUrl":"https://doi.org/10.33307/entomon.v47i4.800","url":null,"abstract":"The riffle bug, Rhagovelia (Neorhagovelia) nilgiriensis Thirumalai, 1994 is reported for the first time from Kerala. They are very small, black bugs, commonly encountered in streams with moderate to swift flow. The current report of R. nilgiriensis from Kerala extends its geographic distribution which was earlier reported only from its type locality Nilgiris, Tamil Nadu, India. The present inventory is crucial, as it is the pioneer report of nilgiriensis from Kerala and the second record of the same from India.","PeriodicalId":87603,"journal":{"name":"Entomon; internationale Zeitschrift fur die gesamte Insektenkunde","volume":"47 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79114132","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-31DOI: 10.33307/entomon.v47i4.789
R. V. James, C. Binoy, S. Santhosh
Nesolynx deltaphagus sp. nov. parasitizing the potter wasp species Delta pyriforme (Fab.) (Hymenoptera, Vespidae) is newly described with illustrations from Kerala, India. This is the first report of parasitism of Nesolynx on Vespidae. A key for the Indian species of Nesolynx is provided along with the diagnosis of the new species with congeners. DNA barcode of the new species using universal primers of CO1 is also provided against accession number (Accession No: OK484482).
{"title":"A new species of Nesolynx Ashmead, 1905 (Hymenoptera, Eulophidae) parasitizing potter wasp, Delta pyriforme (Fabricius, 1775) (Hymenoptera, Vespidae) in its nest from southern India","authors":"R. V. James, C. Binoy, S. Santhosh","doi":"10.33307/entomon.v47i4.789","DOIUrl":"https://doi.org/10.33307/entomon.v47i4.789","url":null,"abstract":"Nesolynx deltaphagus sp. nov. parasitizing the potter wasp species Delta pyriforme (Fab.) (Hymenoptera, Vespidae) is newly described with illustrations from Kerala, India. This is the first report of parasitism of Nesolynx on Vespidae. A key for the Indian species of Nesolynx is provided along with the diagnosis of the new species with congeners. DNA barcode of the new species using universal primers of CO1 is also provided against accession number (Accession No: OK484482).","PeriodicalId":87603,"journal":{"name":"Entomon; internationale Zeitschrift fur die gesamte Insektenkunde","volume":"149 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78153863","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-31DOI: 10.33307/entomon.v47i4.796
Adarsh Panichal Kuniyil, Abhilash Peter
Species under the subfamily Erebinae in India has been compiled and updated. A total of 250 species under 65 genera is enumerated. Current systematic status of the species based on the molecular phylogenetic studies by Zahiri et al. (2011) is given along with their type species and generic synonyms.
{"title":"A checklist of Erebinae (Lepidoptera, Erebidae) from India","authors":"Adarsh Panichal Kuniyil, Abhilash Peter","doi":"10.33307/entomon.v47i4.796","DOIUrl":"https://doi.org/10.33307/entomon.v47i4.796","url":null,"abstract":"Species under the subfamily Erebinae in India has been compiled and updated. A total of 250 species under 65 genera is enumerated. Current systematic status of the species based on the molecular phylogenetic studies by Zahiri et al. (2011) is given along with their type species and generic synonyms.","PeriodicalId":87603,"journal":{"name":"Entomon; internationale Zeitschrift fur die gesamte Insektenkunde","volume":"16 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74813050","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-31DOI: 10.33307/entomon.v47i4.804
F. Yarahmadi, Neemat Dinarvan
Efficacy of some resistance inducers for reduction of Agrotis segetum (Lepidoptera: Noctuidae) in sugar beet was evaluated under field conditions. The inducers include salicylic acid, calcium silicate and sodium silicate which applied in two dosages, 100 and 50 per cent of recommended field dosages (RFD). The larval density in calcium silicate treatment was significantly lower than control (H”19.5%). However, other inducers, salicylic acid and sodium silicate, did not significantly affect the larval density. Reduction of the application dosage to 50 per cent RFD did not have significant effect on the inducer efficacy.
{"title":"Potential of resistance inducers for controlling Agrotis segetum Denis & Schiffermüller (Lepidoptera, Noctuidae) in sugar beet in Khuzestan, Iran","authors":"F. Yarahmadi, Neemat Dinarvan","doi":"10.33307/entomon.v47i4.804","DOIUrl":"https://doi.org/10.33307/entomon.v47i4.804","url":null,"abstract":"Efficacy of some resistance inducers for reduction of Agrotis segetum (Lepidoptera: Noctuidae) in sugar beet was evaluated under field conditions. The inducers include salicylic acid, calcium silicate and sodium silicate which applied in two dosages, 100 and 50 per cent of recommended field dosages (RFD). The larval density in calcium silicate treatment was significantly lower than control (H”19.5%). However, other inducers, salicylic acid and sodium silicate, did not significantly affect the larval density. Reduction of the application dosage to 50 per cent RFD did not have significant effect on the inducer efficacy.","PeriodicalId":87603,"journal":{"name":"Entomon; internationale Zeitschrift fur die gesamte Insektenkunde","volume":"64 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80672236","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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