author(s)
Somashekhar Gaddanakeri and Krishna Rolania

abstract
Biology and morphometrics of Melon fruit fly (Bactrocera cucurbitae Coquillett) on Bitter gourd was carried out during 2018-19 at Department of Entomology, Chaudhary Charan Singh Haryana Agricultural University, Hisar. The mean incubation period of eggs of B. cucurbitae was 18.0 ± 6.32 hours. The total maggot period ranged from 5 to 7 days with a mean period of 5.8±0.78 days. Pupation took place inside the soil (5 to 6 cm thick) provided in cylindrical glass jar. Mean pupal duration was 6.9±0.87 days having a length and breadth of 5.98±0.38 mm and 2.54±0.14 mm, respectively. Total life period of male fruit fly ranged from 30 to 46 days with a mean of 36.2±5.77 days. In case of female fruit fly total life period was slightly longer ranging from 32 to 50 days with a mean of 40.4±6.24 days. Sex ratio in B. cucurbitae was recorded as 1:0.84 (male:female).