BIOLOGY AND MORPHOLOGY OF NYMPHS OF INDIALIS BADIA (EPHEMEROPTERA: LEPTOPHELEBIIDAE).

Dr. T.V.Sathe; Rohini Kamble

Volume : VI, Issue : V, May - 2016

BIOLOGY AND MORPHOLOGY OF NYMPHS OF INDIALIS BADIA (EPHEMEROPTERA: LEPTOPHELEBIIDAE).

Dr. T. V. Sathe, Rohini Kamble

Abstract :

Indialis badia (Order: Ephemeroptera) is incomplete metamorphic insect which resembles with their adults and is good source of food for fishes and plays an important role in food web. Hence biology and morphology of nymph has been studied. I. badia completed its life cycle from egg to adult within 8 to 12 months. Egg stage lasted for 14 days. Eggs hatched during the months of August and September. Nymphs found during the months of September to April and adults were seen in May. Only one generation was completed during the year by this species in Kolhapur region. Nymphal morphology – Body 3.46 mm long, dark own in colour, sutures and sterna paler. Antennal Formula =S–0.03, P– 0.05, F–0.79, 1.37/3 = A=.458 Gills– Gills leaf like, 7 pairs, located on first 7 abdominal segments; last 3 segments have no appendages from lateral side. Last segment shows terminal filament and a pair of banded cerci.