630 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 117 



Genus Haimbachia Dyar 



Haimbachia Dyar, 1909, Proc. Ent. Soc. Washington, vol. 11, pp. 28-29. — Barnes 

 and McDunnough, 1917, Check list of the Lepidoptera of Boreal America, 

 p. 140. — Forbes, 1920, Journ. New York Ent. Soc, vol. 28, p. 221; [1924], 

 Cornell Univ. Agric. Exp. Sta. Mem. 68, p. 593. — Dyar and Heinrich, 1927, 

 Proc. U.S. Nat. Mus., vol. 71, pp. 32-33.— McDunnough, 1939, Mem. 

 Southern California Acad. Sci., vol. 2, p. 25. 



Type: Crambus placidellus Haimbach, original designation. 



Frons round or conical. Ocelli present. Labial palpi long, porrect, 

 slightly down curved, extending over tmce the length of the head. 

 Antennae simple, slightly tliickened in male. Venation: Fore^^dng 

 with 3 from before angle of cell; 4 and 5 separate, from the angle; 6 from 

 below apex of cell ; 7 from apex ; 8 and 9 long stalked ; 10 free and from cell, 

 near stalk of 8 and 9; 11 anastomosing with 12. Hindwing with 4 and 

 5 approximate at origin, thence divergent; 6 from apex of cell with 7; 

 7 anastomosing shortly with 8. 



Male genitalia: Uncus stout, short, with apex rounded and a short, 

 subapical spur beneath. Gnathos short, stout, with a median, short, 

 upcurved hook. Vmculum greatly enlarged, oblong or approximately 

 square and usually with the ventral margin incurvate. Harpe divided, 

 upper element a strongly sclerotized basal costal lobe, usually with a 

 hooklike production. 



Abdomen of male without tufts on second segment. 



Female genitalia: Ductus bursae moderately long, not coiled, con- 

 spicuous sclerotization, not extending beyond origin of ductus seminalis. 

 Bm'sa copulatrix elongate or ovoid, with or without signa. Posterior 

 apophyses conspicuously dilated. Collar of eighth segment with a 

 tonguelike projection from anterior ventral margin and curving back 

 behind genital opening. 



Remarks : Most Haimbachia species can be recognized by the macu- 

 lation of the forewing (fig. 14). The upper surface has a white or 

 grayish ground color irrorated with brown or fuscous. The fades of 

 most of the species is whitish or grayish, but those with the intense 

 brown irroration are brownish in appearance. Between the termen 

 and base of the wing are two complete transverse markings and a short 

 incomplete one about midway between them. The inner marking is a 

 single line, 3'ellow or brownish, with its origin near the middle of the 

 costa, that passes obhquely outward a short distance and then curves 

 outward to form a loop enclosing the cell, thence straight or sinuate 

 to the inner margin. The outer marking has the appearance of a 

 narrow band with the central area concolorous with the ground color 

 of the wing and the margins defined by a gi*eater intensity of the 

 UToration. 



