August, 1944 



Ross: Caddis Flies of Illinois 



257 



CLASPER 



Fig. 873. — Pseudogoera singularis, front 

 wing. (After Carpenter.) 



Fig. 874. — Goerita semata, wings. 

 Fig. 875. — Goerita seniata cf, head. 

 Fig. 876. — Goera calcarata 9, head. 



Front wings without marked reduc- 

 tion in venation, Rg not fused with 



M; 2A and 3A present, fig. 874 2 



2. Eyes small, the head forming a high 



crown between them, fig. 875 



Goerita, p. 258 



Eyes much larger, with a smaller 

 crown, fig. 876 Goera, p. 257 



Goera Curtis 



Goera Curtis (1834, p. 215). Genotype, 

 monobasic: Phryganea pilosa Fabricius. 



Not known from Illinois. The males of 

 this genus have complicated genitalia, as 

 illustrated by stylata, known from Michi- 

 gan, fig. 877. 



A few pupae, presumably belonging to 

 this genus, have been received from scattered 

 localities in eastern states. All these pupae 

 were collected from clear, cold, rapid 

 streams. The stone cases were solid and 

 tightly built. 



Fig. 877. — Goera sty/ata, male genitalia 

 /!, dorsal aspect; B, ventral aspect; C, latera' 

 aspect. 



Fig. 878. — Goerita semata, male genitalia, 

 y/, lateral aspect; B, dorsal aspect; C, aedeagus. 



Note ventral row of peglike teeth on apical 

 segment of clasper in ^7; one of these teeth 

 is illustrated separately below the clasper. 



