24 



Illinois Natural History Survey Bulletin 



Vol. 23, Art. 1 



Fig. 39. — Limnephilus submonilifer pupa, 

 venter of abdomen. 



Fig. 40. — Hydropsyche orris pupa, abdo- 

 men. 



Fig. 41. — Macronemum zebratum pupa, ab- 

 domen. 



Fig. 42. — Rhyacophila lobijera pupa, ab- 

 domen, d^, A, dorsal aspect; 5, lateral aspect. 



Fig. 43. — Rhyacophila lobifera pupa, abdo- 

 men, 9. 



Fig. 44. — Ochrotrichia anisca pupa, head. 



Fig. 45. — Beraea sp. pupa, apical processes. 

 (After Ulmer.) A, dorsal aspect; B, lateral 

 aspect. 



Fig. 46. — Molanna uniophila pupa, first 

 abdominal tergite. 



transverse furrow or with a gently 

 concave depression across the scle- 

 rite 15 



(TTJ' 



^.. 



Fig. 47. — Molanna uniophila pupa, hook 

 plates. 



Fig. 48. — Oecetis inconspicua pupa, hook 

 plates. 



15. Hind tarsal claws extremely long and 



narrow, as long as tibia, as in fig. 



38 Beraeidae, p. 208 



Hind tarsal claws much shorter, as in 

 fig. 27 16 



16. Mesonotum divided into 2 pairs of 



plates, fig. 37 Goeridae, p. 256 



Mesonotum not divided into plates, 

 but forming a single, rectangular 

 sclerite with only a mesal fracture 

 line, fig. 20 17 



17. Antennae situated very close to eye, 



fig. 29; first abdominal tergite with- 

 out a hump 



Lepidostomatidae, p. 258 



Antennae situated either midway be- 

 tween eye and margin of head or 

 closer to margin of head than to eye, 

 fig. 30; first abdominal tergite with a 



hump, fig. 20 



Limnephilidae, p. 176 



Pupae 



1. Apex of abdomen membranous, with- 

 out definite lobes except ventral 



