30 NEUROPTERA. 



32. C. psociformis, Curt. ; Steph. 117, 3. 

 Exp. 4 lin. 



Snow-white ; antennae twice as long as the body, 

 ochreous; hind wings hardly half the size of the 

 fore wings. 



Habitat England, Scotland. 



Family II. Sialid.se. 

 Wings deflexed; subcosta unites with the costa before 

 the apex of the wing; labial palpi 3-jointed; anal 

 area present (in Raphidia very small). 

 Larva with the mouth formed for biting, always carni- 

 vorous. 



A. Ocelli wanting. 



Genus Sialis, Latreille. 



33. Sialis lutarius, L. ; Steph. 133, 1. 

 Exp. 19 lin. 



Black ; the brownish wings with a multiplicity of veins ; 



marginal vein brownish ; fore-wings yellowish at the 



base. 

 Habitat England, Scotland; very common. 



B. Ocelli present. 



Genus Raphidia, L. 

 (A species which does not occur in England, R. crassi- 



cornis (Inocellia, Schn.), has no ocelli.) 



* Stigma with only one transverse vein ; below it four rows 



of cells. 



34. Raphidia ophiopsis, L. ; R. affinis, St. 131, 4 ; R. 



maculkollis, St. 131, 5. 

 Exp. 8 lin. 

 Black-brown ; head conical, convex, a red spot above 



