16 Psyche [March 
rod-like and strongly sclerotized ; legs with or with- 
out claws 9 
Case incomplete, the pupa in an inner silken cocoon; 
gills absent; no long or rod-like or strongly sclero- 
tized anal processes ; legs with good claws 6 
6. Inner silken cocoon spindle-shaped like a zeppelin or a 
fly puparium, attached to the case only at its poster- 
ior end ; case barn-shaped, usually of pebbles ; 5th 
segment of maxillary palpi not annulated 7 
Inner silken cocoon either not complete or fused to case 
wall near its equator ; when incomplete, the anterior 
end lacking, the posterior end much as in Rhya- 
cophilinse ; 5th segment of maxillary palpi long, 
curved and distinctly annulated 8 
7. Spurs 2-4-4 : Rhyacophilidze, 
subfamilies Glossosomatinze & Hydrobiosinze 
Spurs 3-4-4 : Rhyacophilidze, subfamily Rhyacophilinse 
8. Spurs 2-4-4 : Philopotamidze, subfamily Philopotaminze 
Spurs 1-4-4: Philopotamidze, subfamily Chimarrhinze 
9. Ocelli present 10 
Ocelli absent 12 
10. Posterior margin of 1st abdominal tergite produced 
caudad in a distinct median process extending over 
base of 2nd segment; mandibles with a prominence 
from which the bristles arise; anal processes flat, 
somewhat rhombic, with 4 long bristles at the end ; 
spurs 2-4-4 ; male maxillary palpi 4-segmented : 
Phryganeidze 
Posterior margin of 1st abdominal tergite not produced 
caudad but with a saddle-shaped prominence, later- 
ally with short spines or with only two lateral tuber- 
cles set with numerous hairs or denticles ; mandibles 
with no such prominence ; never more than one pro- 
tibial spur ; male maxillary palpi 3-segmented ; anal 
processes long, more slender 11 
11. Labrum semicircular, anteriorly emarginate, the dorsal 
surface elevated, with a transverse furrow back of 
its mid line; spurs 1-1-1, 1-2-2, 1-2-3, 1-2-4, 1-3-3 or 
in most, 1-3-4 : Limnephilidze 
