Electronic field guide to AQUATIC MACROINVERTEBRATES of SMALL STREAMS in Eastern Massachusetts

Shoulder spine (foretrochantin) absent; case turtle-shaped, made of small stones.GLOSSOSOMATIDAE

Glossosoma_case_thm.jpg
Glossosoma

Shoulder spine (foretrochantin) broad and hatchet-shaped; constructs silk retreat on logs and rocks.PSYCHOMYIIDAE

Lype_02_thm.jpg
Lype
Shoulder spine (foretrochantin) simple and pointed; dark x-mark on anal prolegs; without portable case.POLYCENTROPODIDAE

Polycentropus_02_thm.jpg
Polycentropus

Shoulder spine (foretrochantin) simple and pointed; anal claws relatively large and robust; without portable case.RHYACOPHILIDAE

Rhyacophila_thm.jpg
Rhyacophila
Upper lip (labrum) noticeably T-shaped; without portable case

Wormaldia_03_thm.jpg

PHILOPOTAMIDAE		Front legs with tuft of hairs; case a soft, branched silk tube usually found in clusters on stream bottoms.DIPSEUDOPSIDAE

Phylocentropus_case_thm.jpg
Phylocentropus
Head with bold dark and light stripes; often large, especially in Spring; case cigar-like, smooth, made of leaf pieces neatly arranged in rings.

Ptilostomis_02_thm.jpg

PHRYGANEIDAE
Go back Restart Key