BIOL 312 Lecture Notes - Lecture 9: Sphex, Botfly, Caddisfly

• School: University of Victoria
• Department: Biology
• Course: BIOL 312
• Professor: Steve Perlman

Document Summary

Eusociality in hymenoptera: complex; reproductive division of labour (complex castes). Has evolved independently in aculeate hymenoptera at least 11 times (in bees, wasps, digger wasps, ants). Diverse: phytophagy and pollination, predation and parasitism, blood feeding, aquatic lifestyle, decaying organic matter (carrion, fungi, fruit). Hindwings modified into halters (cid:894)(cid:271)ala(cid:374)(cid:272)ers(cid:895) (cid:862)di(cid:863) two. Larvae lack true legs, head capsule complete or absent. Mouthparts: specialized for liquid food, include biting and sucking, piercing and sucking and lapping types. Associations with plants: pollinators, leafminers, gallmakers, fresh and rotten fruit. Predators and parasitoids: parasitoid host location can be ovipositing females, by active first instar larvae or by hosts ingesting parasitoid eggs. Eggs on caterpillar; hatch; burrow and develop inside caterpillar into larvae. Mom lays eggs, larvae will crawl around looking for host sometimes mom helps them out by laying eggs near host. Some eggs hatch after ingestion by host host is devoured from inside.