Setae on head (Figure 617, A) relatively short; largest setae, 7 and 9, 

 no longer than /s of width of head; median and intermediate anterior-margin 

 setae also large, about the same length, brown, lateral anterior-margin seta 

 light, procumbent; anterior frontal seta the same; intermediate and 

 posterior frontal setae small, thin; seta 7 situated near anterior margin, 

 dark brown, moderately long; seta 9 similar, situated medially at level of 

 anterior margin of eye; seta 11 situated posteriorly near seta 9, small; 

 364 seta 10 light, situated laterally before eye, seta 12 behind eye, both short, 

 thin; seta 13 similar, slightly thicker, curved, directed anteriorly; seta 14 

 short, thick, smaller than 9, light brown; seta 15 moderately long, thin; 

 seta 16 short, thick, curved medially; seta 17 strong, moderately long. 



616 



617 



FIGURES 616 and 617. Crunoecia irrorata Curt.: 



616 — larva in case, lateral;- 617 — head, dorsal (A) and ventral 

 (B),labrum (C) (616 and 617, B - after Hickin; others after 

 Nielsen). 



Labrum (Figure 617, C) short, wide, as in Lepidostoma (length/ width 

 ratio 1:2.89); anterior margin membranous laterally, with long, thin hairs; 

 lateral margin also with wide, membranous stripe; dorsal sclerite light 

 reddish brown, with a shallow, median indentation; posterior-angle sclerites 

 wide basally, curved, narrow apically. Seta 1 situated lateral to median 

 indentation, in form of a small, blunt, light spine; seta 2 situated on membrane 



455 



