REVISION OF PEORIINAE AND ANERASTIINAE 47 



Paratypes: Three males, same date and locality as holotype, Cornell 

 University lot No. 542, sublot No. 46. 

 Other specimens examined. — 14 cT, 3 9 . 

 Distribution (Map 9). 



UNITED STATES: Arizona: Apache Co., St. Johns, 3 cf, July 26, 1937 

 (A. B. Klots) [AMNH]. 



New Mexico: Dona Ana Co., Mesquite near Mesilla Park, 10 cf, July 12, 

 1917 (from same lot as type series) [CU]; Hidalgo Co., Cienaga Ranch, near 

 Rodeo, 1 9 , July 12, 1948 (C. and P. Vaurie) [AMNH]; Sandoval Co., Jemez 

 Springs (6200 ft.), 1 9, July 16, 1950 (Cohn, Boone, Cazier) [AMNH]; Sulphur 

 Dam, 5 mi. north Jemez Springs (6300 ft.), 1 cf, July 17, 1950 (Cohn, Boone, 

 Cazier) [AMNH]; county unknown, 1 9 , no date [AMNH]. 



The Alhicostella Group 

 Arivaca alhicostella (Grossbeck), new combination 



Figures 21, 60. 90, 125, 162 



Calera (?) albicosleUa Grossbeck, 1917, pp. 134-135. — Klots, 1942, p. 419. 

 Peoria alhicostella (Grossbeck). — McDunnough, 1939, p. 36. — Kimball, 1965, 

 p. 251. 



Diagnosis. — The presence of a white costal band coupled with the 

 absence of white tracing on the cubitus distinguishes this species wdthin 

 the genus. In no other species of Arivaca does the male costa terminate 

 in a subapical spine. 



Description. — Frons brown; labial palpi about 2^ times as long as 

 eye diameter, basal segments light brown, second and third segments 

 clothed with light brown tipped brown scales on outer sides, light 

 brown on inner sides and ventrally; antennae with scape brown, shaft 

 light brown, laminate, basal segments bearing tuft of scales, cilia 

 slightly less than half as long as segment width; frons and vertex light 

 brown dorsally, vertex brownish white posterior to antennae, occiput 

 brownish white dorsally, brown laterally, patagia and tegulae brown; 

 legs clothed with white tipped brown scales on outer sides, white on 

 inner sides. 



Forewing reddish brown, often sprinjiled wdth light brown and dark 

 brown scales; light brown anterior to cell, sometimes sprinkled rather 

 heavily ^vith darker scales. Hindmngs light bro^vn. Venation as in the 

 Albidella Group. 



Male genitalia with medial part of uncus weakly sclerotized, round- 

 ed; spicate process with posterior thorn directed dorsally, then re- 

 flexed 90° near base and caudally directed (fig. 125). Juxta rounded, 

 posterior margin concave. Valvae with costa sparsely setose, produced 

 as free spine before rounded membranous apex of cucuUus; sacculus 

 finely setose. Aedeagus with cornuti elliptical, serrate. 



Female genitalia as in the Pimella Group. 



