Key to common families of insects in the Niagara region

37a) Labrum of head membranous and T-shaped. Head without dark rounded muscle scars.
Trochantin of fore leg poorly developed. PHILOPOTAMIDAE

37b) Labrum of head sclerotized and rectangular. Head with dark rounded muscle scars.
Trochantin of fore leg with pointed distal end. POLYCENTROPODIDAE




Return to Couplet 36
Return to BioMAP Central