NEARCTIC TRICHOPTERA — FLINT 

 Hydropsyche Carolina Banks 



375 



Figure Ic 

 Hydropsyche Carolina Banks, 1938, p. 77, figs. 8, 9. 



The male genitalia of this distinctive little species have not been 

 adequately figured previously. The forewing has a crescentic band 

 of yellowish hair subapically, a patch basally in the anal area, and 

 others at intermediate spots. 



Figure 1. — Phylocentropus carolinus: a, male genitalia, lateral; b, clasper, ventral. Hydro- 

 psyche Carolina: c, male genitalia, lateral. Diplectrona calif ornica: d, male genitalia, 

 lateral; e, aedeagus, lateral. 



Family Limnephilidae 

 Genus Dicosmoecus 



The taxonomic situation among the North American species of 

 this genus is still rather confusing, even after studying the types and 

 much more additional material of most of the species. Differences 

 exist between these specimens, especially in the armature of the 

 lateral sheaths of the aedeagus and in the structure of the basal ridge 

 of the clasper. Presently I am able to recognize 5 different kinds of 

 males, based mainly on these structures. Although these 5 genitahc 

 kinds, which are being considered species, do not intergrade in the 



