Biology and morphometric studies of citrus butterfly PAPILIO DEMOLEUS LINNAEUS ON KINNOW MANDARIN (CITRUS NOBILIS X CITRUS DELICIOSA}

摘要

The biology of citrus butterfly was studied under laboratory (room temperature 29-35°C; RH 60-75%) and screen house conditions on Kinnow mandarin. The results revealed that pre-oviposition, oviposition and post-oviposition period averaged 1.30±0.48,4.20±0.79 and 2.44±0.45 days, respectively. A single female laid 100.9±4.04 eggs which hatched in 4.24±0.69 days. The mean duration of 1st, 2nd, 3rd, 4th and 5th larval instar was 2.7±0.48, 2.6±0.52,2.9±0.31, 3.2±0.42 and 5.2±0.42 days, respectively. The mean longevity of male was 4.07±0.18 days and that of female as 6.84±0.19 days. Morphometric studies on P. demoleus revealed that the eggs measured 1.01±0.05 mm in diameter. Average body lengths of 1st, 2nd, 3rd, 4th and 5th instar larvae was 5.30±0.38,9.18±0.11,14.00±0.53,26.21±2.02 and 45.00±2.62 mm, respectively. The average wingspan and body length measured 90.45±1.59 and 27.35±0.97 mm in male, while 90.93±2.13 and 28.58±1.24 mm in female, respectively.