102 



NEUROPTERA. 



naked cell circumscribed by a circular vein ; spurs 2, 4, 4 ; 

 tibiae without spines. 



Case irregularly constructed of small stones, smooth, 

 tubular, nearly uniform in width, with larger stones affixed 

 to the outside on each side. The larva lives in swiftly 

 running brooks. 



45. Goera capillata, P. ; G. flavipes, Steph. 111. 187, 



2(tf ); Curt. Phil. Mag. 215; Ent. Mag. I. 189; 

 G. pilosa, Steph. 111. 187, 1 ( ? ) ; L.fulvum, Ramb. 



Yellowish brown, clothed with golden yellow hairs ; 

 antennas brown, with the basal joint paler ; anterior 

 wings pale golden brown ; posterior wings ashy grey. 



Length 5 lin. ; exp. 8 lin. 



Hab. London, Hertford, Ripley, from June to Sep- 

 tember; common. 



46. G. fuscicornis, P. ; G. vulgata, Steph. 111. 188, 3. 

 Black, clothed with ochreous hairs ; antennas darker ; 



anterior wings pale straw yellow; posterior wings 



greyish yellow. 

 Length 3| lin. ; exp. 6 lin. 

 Hab. London and Devonshire, in June ; not common. 



I cannot separate the two species by certain structural 

 characters ; but as, according to Pictet, the larvae are different, 

 I have not felt justified in uniting them. 



Genus Silo, Curtis. 

 Trichostoma, Pict. ; Aspatherium, Kolen. 

 The same characters as for Goera, but the naked circular 

 cell is wanting in the anterior wings ; the basal joint of the 



