Quick guide to the MCI non-cased February 2003 Trichoptera (excluding Hydrobiosidae) By Brian J. Smith Diplectrona no MCI
YES
trochantin Hydropsychidae Is the fore-trochantin a 1 single spine? 2 Orthopsyche MCI = 9 3 YES forked trochantin 4 YES globule-like setae abdomen with NO 5 dense setation, & ventral gills present Are there only 6 abdominal 6 gills, & the abdominal setation a mixture of ovoid & globule type setae? Are branched abdominal gills present ventrally & 2 all thoracic segments sclerotised abdominal setation NO 4 3 1 3 2 1 conspicuous? 5 6 7 Aoteapsyche MCI = 4 NO
non globule-like setae
1 abdomen without 2 dense setation & Zelandoptila ventral gills Psychomyiidae 3 MCI = 8
YES
spines YES Does the foreleg trochantin have two small spines on the distal margin, & are the submental trochantin Are all 3 thoracic sclerites of the head clearly separated submental sclerites segments sclerotised? YES separated?
NO only pronotum NO membranous sclerotised
Is the head elongate, & a fused submental sclerites Ecnomina large, conspicuous Ecnomidae trochantin present on the MCI = 8 trochantintrochantin foreleg? abdomen may eyes may be be swollen prominent
NO trochantin
Hydroptilidae CONTINUED MCI = 2 legs long
CONTINUED
lateral fringe Polyplectropus distinctly curved pronotum MCI = 8
YES
lateral fringe Are abdominal gills Is the dorsal surface of the absent, & only the pronotum noticeable curved pronotum sclerotised? in lateral view?
NO straightened pronotum
YES
apex Polycentropodidae acute
YES Plectrocnemia MCI = 8 Does the head & pronotum trochantin have prominent spots, & is the foreleg trochantin long & sharp? Is there a fine lateral line of setae on the abdomen?
NO prominent inner tooth Cryptobiosella narrow posterior no MCI
YES
mandible frontoclypeus apex rounded Is the head reddish brown, & is posterior margin of the frontoclypeus Philopotamidae narrower in width than the anterior? Do the mandibles have a prominent inner mandible frontoclypeus tooth?
NO inner tooth not prominent Hydrobiosella trochantin wide posterior MCI = 9