NE ARCTIC TRICHOPTERA — FLINT 



377 



Figure 2. — Dicosmoecus atripes: a, lateral sheaths of aedeagus of type of nigrescens, dorsal; 

 b, same of type oi jucundus, dorsal; c, same of type of atripes, dorsal; d, same of specimen 

 from Modoc Co., Calif., dorsal; e, same of specimen from Richel Lodge, Mont., dorsal; 

 /, same of specimen from Provo Canyon, Utah, dorsal. Dicosmoecus gilvipes: g, clasper 

 of male, dorsal; h, lateral sheath of aedeagus, lateral. Dicosmoecus pallicornis: i, lateral 

 sheath of aedeagus, dorsal. Dicosmoecus palatus: j, aedeagus, lateral. Allocosmoecus 

 partitus: k, male genitalia, lateral; /, aedeagus, dorsal. Philocasca antennata: m, male 

 genitalia, lateral; n, aedeagus, dorsal. 



