Full-text - Norsk entomologisk forening

AdultslI)"-5co-en 4.63tii>"­2co...J1- - 343526_.-5219 •.•••••P. cingulatus•M J J A SON D JMonthsFig. 7. Larval collections in selected months during1981-82, and adult flight periods in 1981.- - 26 18P. nigricornis8-- -267-­M J J A SON D J Fbut a few bottom samples from the Driva indicatedthat P. latipennis completed its life cycle inone year.FOODGut analyses were made on 30 5th instar larvaetaken in May 1981 and 18 3rd and 4th instarlarvae in November-December 1981 of P.cingulatus. In the case of P. nigricornis, 15 5th3020lI)•