Biosystematic studies on Thyridid moths (Lepidoptera: Thyrididae) in India
| dc.contributor.advisor | Agnihotri, Meena | |
| dc.contributor.author | Samraj, J.M. | |
| dc.date.accessioned | 2022-02-01T11:07:07Z | |
| dc.date.available | 2022-02-01T11:07:07Z | |
| dc.date.issued | 2021-09 | |
| dc.description | The present investigation was conducted to study the biosystematics of the lepidopteran family Thyrididae in India. During the investigation, the species discovery pattern of Thyrididaein India was compiled based on the number of species described in each of the 11 biogeographicalzones, the number of species described by different authors and the number of species described in each year from 1773 to 2020. 75 per cent of the species of Thyrididae in India had been described from only two bio-geographical zones. Only four authors had described 86 per cent of the total no. of species of Thyrididae described from India. In the last 100 years, only six species of Thyrdidae has been described from India. The total number of species of Thyrididae described thus far in India was compiled by intensive searches in the literature. A synoptic catalogue of 112 species and 18 subspecies of Thyrididae grouped under three subfamilies and 31 genera that occur in the country have been prepared. A total of 54 species and 7 subspecies under 21 genera and 3 subfamilies were collected during the survey. Striglina scitaria thermisoides Snellen was the most abundant species with a relative abundance of 8.18 per cent. Among the genera, Striglina was the most abundant with 11 species or subspecies. Subfamily Siculodinae had the most number of species (15 genera, 36 species). Most species were present in the Northeast zone (26 species) which is 42 per cent of the total species documented in the survey from all the zones. Identification key to the Indian genus, species and subspecies of the subfamily Striglininae has been prepared. 13 species and 8 subspecies of Strglininae are re-described with additional morphological characters such as the legs and wing venation. Striglina scitaria vietnamensis Konvička, Spitzer and Jaros which was known previously only in Vietnam has been reported for the first time from India, Assam. Female of Striglina conjuncta has been newly discovered and described. A new subspecies of Striglina irresecta is described from Uttarakhand based on the differences in male genitalia with its closely related subspecies Striglina irresecta obscura Whalley. Aglaopus industa Whalley which was known only in its type locality is newly reported from Kerala. Female of Aglaopus whalleyi Konvička, Spitzer and Jaros was discovered in Arunachal Pradesh and described for the first time. Genus Mathoris was represented by three species in India. In the present study, a new species has been described from Assam. Subfamily Siculodinae is the largest of all the subfamilies of Thyrididae. 36 species have been documented in the study. Of which, seven species have been re-described with additional morphological data. Subfamily Thyridinae was represented by four species in two genera. Genitalia of a day-flying moth Glanycus tricolor has been described and illustrated for the first time. Molecular study based on mtCOI gene revealed a distinct phylogenetic distance existing between the subspecies of Striglina scitaria. The present study has attempted to fill the knowledge gap in the family Thyrididae existed for over a century. | en_US |
| dc.identifier.uri | https://krishikosh.egranth.ac.in/handle/1/5810181503 | |
| dc.keywords | biosystematics, Thyrididae, moths, India | en_US |
| dc.language.iso | English | en_US |
| dc.pages | 277 | en_US |
| dc.publisher | G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand) | en_US |
| dc.research.problem | Thyrididae | en_US |
| dc.sub | Entomology | en_US |
| dc.theme | Biosystematics | en_US |
| dc.these.type | Ph.D | en_US |
| dc.title | Biosystematic studies on Thyridid moths (Lepidoptera: Thyrididae) in India | en_US |
| dc.type | Thesis | en_US |