This key to species in the family Bittacidae has some good and bad qualities. Describe 3 positives and 3 negatives of this key. Don't copy and paste sections of the key. Explain why those things are positive or negative. I'm trying to actually understand why something is good or bad in this specific key. (not about keys in general) Describe 2 specific improvements that could be made to this key. Key to the species of Bittacidae (Hangingflies) of Illinois 1. Apices of wings dark brown and held out to the sides while at rest.......... Hylobittacus apicalis 1'. Apices of wings without dark brown spot; wings folded over back while at rest ... (genus Bittacus)...2 2 (1). Apical crossveins present 3 ‒‒‒‒‒‒‒‒ 4 ---------……………………….. mm-======================= ……………. •Bittacus punctiger B. pilicornis 2'. Apical grossveins absent..... 3 (2). Hind femora with brown spots surrounding base of setae. 3'. Hind femora lacking brown spots surrounding set..............….... 4 (2). Subcostal crossvein, distal to the first fork of the radial sector. 4'. Subcostal crossvein basal to the first fork of the radial sector... 5 (4). Wing membranes colorless; grossveins margined.......... .B. occidentis .5 B. strigasus 5'. Wing membranes yellow to amber; crossveins not margined; in males, the lobes of the ninth tergum each bear two medial prominences bearing several black spin................ B. stigmaterus 5". Wing color brown to dark brown; crossveins not margined; in males, the lobes of the ninth tergum bear one medial prominence bearing several black spines......... B. texanus