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Department of Entomology, S.V. Agricultural College, ANGRAU, Tirupati-517 502.
A study was conducted in the Department of Entomology, S.V. Agricultural College, Tirupati during the year 2023-
2024, on the chaetotaxy of larva and genital characters of adults. Larvae were collected from different field crops such as rice, sugarcane, maize, sorghum, ragi, groundnut, cotton, pulses and oilseeds. The collected larvae were brought to the laboratory and the taxonomic characters were studied in detail. Some of the larvae were reared until the adult emergence followed by dissection of genitalia in order to identify them easily. All these lepidopteran larvae were described based on the morphological characters and chaetotaxy of thoracic and abdominal segments especially 3rd abdominal segment and arrangement of crochets on the ventral prolegs. External morphology and genital characters viz., uncus, gnathos, tegumen in male genitalia and ovipositor, bursa copulatrix and apophyses of female genitalia. The photographs of head capsule, thorax, abdominal segments, depiciting the setal formula, crochets and genitalia were taken.
KEYWORDS: Chaetotaxy, Crochets, Genitalia, Noctuidae.