Electronic field guide to AQUATIC MACROINVERTEBRATES of SMALL STREAMS in Eastern Massachusetts
Gills attached only at neck area (cervial region).NEMOURIDAE
Amphinemura
Gills single, telescoping, and attached at base of each leg; small, dark insect that emerges in early spring.TAENIOPTERYGIDAE
Taeniopteryx
Finely branched gills attached at base of each leg; can get fairly large.PERLIDAE
Acroneuria
Gills attached to underside of thorax and at rear end of abdomen.PERLIDAE
Perlesta
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