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Psyche 
[Vol. 87 
Fig. 6. Coniopteryx quadricephala. A. Male genitalia, lateral view. B. Male 
genitalia, caudal view. C. Hypandrium, ventral view. D. Paramere, lateral view. E. 
Male internal genitalia, ventral view. F. Male antennal segments 8-10. 
Deposited in USNM, UTAH and collection of the author. 
Notes: This species belongs to the C. westwoodi group. C. 
quadricephala can be separated from all related species by the shape 
of the head. No related species has the vertex of the head produced as 
previously described and figured. 
Semidalis tricornis new species 
Type: Holotype male; Arizona; USNM. 
Head: Light reddish tan. Antennae yellowish grey, 29-33 seg- 
