CADDIS FLY LARVAE—FLINT 475 
Ficure 5.—Rhyacophila minora: a, head and pronotum, dorsal aspect; b, mandibles, dorsal. 
R. manistee: c, head and pronotum, dorsal; d, anal proleg, lateral. 
Remarks: The immature stages of minora were found in the riffles 
of small brooks, generally less than 3 yards wide. The larvae of 
manistee are found in considerably larger streams. 
The adults of minora apparently emerge in late May in the southern 
Appalachians and about a month later in the Northeast. A single, 
nearly full grown larva found in November shows that the species 
probably overwinters in this stage. 
Rhyacophila manistee Ross 
Ficure 5,c,d 
Rhyacophila manistee Ross, 1938a, p. 104 (male genitalia). 
This species has previously been recorded from Michigan; it is now 
recorded from New Hampshire and New York. 
