398 Mr. A. E. Eaton on some British Neuroptera. 



the upper margin of the fifth segment testaceous. The seventh 

 segment is something like an old-fashioned bonnet. The 

 eighth segment is oblong. Figure 6 Fig. g. 



will give some idea of their outline as ^ ^ ^—^ 



it appears from the side. The dorsal e j LjlJ^^^S^^^ J 

 extension of the ninth segment seems 



oblong. The app. sup, are obtuse and apparently cylindrical. 

 The apical margin of the first joint of the app. interm. has only 

 an obscure projection beneath. The second joint appeared to 

 be toothless ; but it is not well shown in the Cambridge speci- 

 men. The ventral extension of the segment seems triangular, 

 and bears the obtuse filiform app. inf., which extend as far as the 

 projection from the apical margin of the first joint of the app. 

 interm. The divisions of the bifid penis-sheaths are linear, 

 long, and subequal \ they diverge at the base, and converge to- 

 wards their tips in a vertical direction. The lower divisions 

 reach just beyond the extremities of the app. inf. 



A single specimen was associated with P. germanica in a 

 collection of British insects presented some years ago to the Uni- 

 versity by the Cambridge Philosophical Society. Although no 

 locality was assigned to it, I do not doubt that it is British ; for 

 the foreign Neuroptera were contained in a separate cabinet. 

 Rambur appears not to have known the habitat of this species. 



Tribe TRICHOPTERA. 



Section INjEQUIPALPIDjE. 



Family Limnephilidse. 



Genus Anabolia., Leach. 



A. nervosa, Curtis. 



I captured a $ specimen near Cambridge in October 1864, in 

 whose left fore wing the first two apical sectors become united 

 at about the last quarter of their length, i. e. just before they 

 reach the anastomosis. In both its hind wings the first apical 

 sector bifurcates near its distal extremity. This specimen is not 

 in the museum. 



Family Sericostomidae. 



Genus Silo, Curtis. 



S. fumipennis, M^Lachlan. 



In Mr. Jenyn's collection of Cambridgeshire insects this 

 species stood for Polycentropus picicornis, Steph. It is common 

 on small streams near Cambridge. 



