REVIEW OF MOTH GENUS HAIMBACHIA — CAPPS 647 



Food plant: Unknown. 



Remarks: The character of the hooklike projections from the dorsal 

 basal lobes of the harpes and slender aedeagus with linear arrangement 

 of the cornuti are diagnostic for the male genitalia of diminutalis; the 

 division of the tonguelike projection into two elements from base of 

 the bifurcation to near the loop distinguishes the female genitalia of it 

 from all others of the group. 



Alamogordia prosenes (Dyar), new combination 



Figure 5 



Diatraea prosenes Dyar, 1912, First Ann. Report, Laguna Mar. Lab., p. 165. 



Chilo prosenes (Dyar). — Barnes and McDunnough, 1917, Check list of the Lepi- 



doptera of Boreal America, p. 141, no. 5433. 

 Haimbachia{?) prosenes (Dyar). — Dyar and Heinrich, 1927, Proc. U.S. Nat. 



Mus., vol. 71, p. 37. 

 Haimbachia prosenes (Dyar). — McDunnough, 1939, Mem. Southern California 



Acad. Sci., vol. 2, p. 25, no. 5698. 



Alar expanse: Male 23 mm.; female 20-31 mm. 



Larger than most Haimbachia species. Frons round. Head, 

 thorax, and abdomen sordid white. Palpi sordid white with inter- 

 mixture of smoky fuscous. Forewing: Ground color whitish, inter- 

 space of veins heavily sprinkled with brown or fuscous, the wing 

 appearing lined. Medial transverse line absent. Postmedial trans- 

 verse line brownish; origin from costa about one-fourth length of the 

 wing before apex, strongly oblique outward to near apex, thence bent 

 and continuing subparallel to the termen, terminating near middle of 

 inner margin of the wing. Terminal line brownish or fuscous, narrow, 

 continuous. Fringe nonmetallic; whitish. Hindwing: White, with 

 slight buff suffusion. Fringe white. 



Definition of the postmedial transverse line and lined appearance of 

 the forewing is weaker in the females than in the males. 



Male genitalia as figured (figs. 5, 5a). 



Type: Female, in U.S. National Museum, USNM 14352. 



Type locality: Laguna Beach, California. 



Food plant: Unknown. 



Distribution: Glendale, Los Angeles, San Bernardino, and La 

 Puerta Valley, California. 



Remarks: Dyar and Heinrich transferred prosenes from Chilo to 

 Haimbachia with considerable reservation, due to the lack of males for 

 study. Since then, with the acquisition of the Barnes collection by 

 the U.S. Department of Agriculture, males became available and dis- 

 section of their genitalia revealed that the species is definitely not a 

 Haimbachia and properly belongs in Alamogordia, to which it is hereby 

 transferred. 



