Electronic field guide to AQUATIC MACROINVERTEBRATES of SMALL STREAMS in Eastern Massachusetts
Flat, teardrop-shaped purse
Molanna
Small, curved, and made of clear quartz sand
Psilotreta
Curved and tapered, often large; found in intermittent streams
Pseudostenophylax
Long and thin, slightly curved and tapered
Agarodes
Small, strongly tapered and curved like a "horn-of-plenty".
Oecetis
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