NEOTROPICAL CADDIS FLIES I — FLINT 



457 



apex slightly flattened and twisted, filicercus long, slender, slightly- 

 widened apically; clasper with basal segment about 5 times as long 

 as broad and with an apicoventral lobe; apical segment cylindrical, 

 curving mesad; aedeagus (fig. l,g,h) with a pair of dorsomesal processes 

 produced into a strong recurved hook, and a cluster of spicules dorsally, 

 internal rod simple, body enlarged basally, with thin lateral flanges. 

 Holotype cf, allotype 9, paratypes 1 c?, 5 9: Ecuador: Papallacta, 

 10,500 ft., Jan. 28, 1958, R. W. Hodges (USNM Typo 66017). 



Figure 1. — a-d, Atopsyche clarkei: a, male genitalia, lateral view; b, right clasper, ventral; 

 c, aedeagus, lateral; d, aedeagus, dorsal, f-h, Atopsyche neolobosa: e, male genitalia 

 (ninth and tenth terga omitted), lateral; /, right clasper, ventral; g, aedeagus, lateral; 

 h, aedeagus, dorsal. 



