NORTH AMERICAN ACROLOPHIDAE — HASBROUCK 527 



Type locality. — Huaclmca Mountains, Ariz. 

 Distribution.— Southwestern United States. Southern Arizona. 

 Sources of material: Cahfornia Academy of Sciences (6 cf cf , 

 1 9), Carnegie Museum (1 <J*). 

 Specimens examined. — 8 (7 cT cf , 1 9), from 2 locahties: 



Arizona: Palmerlee, Cochise Co., d^ (date and collector unknown); Pata- 

 gonia, Santa Cruz Co., 3 d" cT, 9 (Aug. 1, 1924, E. P. Van Duzee), 3 cf cf (Aug. 2, 

 1924, Van Duzee). 



Remarks. — This species undoubtedly ranges southward into Mexico. 

 The specific name should be spelled dorsimaculus to agree grammati- 

 cally with its present genus. In general, it is related to those acrolo- 

 phids having elongate labial palpi, but it is not closely related to any 

 one species. The structures on the head of dorsimaculus furnish a 

 distinctive combination of elongate labial palpi, naked eyes, and 

 bipectinate antennae. In addition, the genitalia of this species may 

 be distinguished from those of all other acrolophids by the inward 

 curvature of the cucuUus of the harpe and by the greatly expanded, 

 calyciform aedeagus. 



I have examined the type cf specimen at the U.S. National Museum. 

 It is labeled ''Felderia dorsimacula Dyar, type no. 5346, Huachuca Mts., 

 Ariz., July 24-30." Dr. Clarke kindly removed the genitalia of the 

 type for me and the identity of this species was thus further confirmed. 

 Dyar, in his list of 1903, also reported this species from Texas. How- 

 ever, I have seen no examples of dorsimaculus from that State. 



2. Acrolophus griseus (Walsingham) 



This complex species is composed of the two subspecies treated 

 below. 



2a. Acrolophus griseus griseus (Walsingham), new combination 



Figures 30-34 



Hypoclopus griseus Walsingham, 1887, Trans. Ent. Soc. London, p. 144, pi. 7, 

 figs. 2, 2a, 2b, June.— Smith, 1891, List Lep. Bor. Amer., p. 94, no. 5046.— 

 Dyar, 1900, Can. Ent., vol. 32, no. 10, p. 307; 1903, List North Amer. Lep., 

 p. 577, no. 6582. — Walsingham, 1915, Biol. Centr.-Amer., pt. 12, vol. 4, p. 

 377. 



Acrolophus griseus Barnes & McDunnough, 1917, Check List Lep. Bor. Amer., 

 p. 191, no. 8168.— Forbes, 1923, Lep. New York, pp. 120, 122.— 

 McDunnough, 1939, Check List Lep. Can. & U.S. Amer., p. 103, no. 9554. 



Acrolophus leucallactis Meyrick, 1919, Exotic Microlep., vol. 2, no. 9, p. 281, 

 Nov. — McDunnough, 1939, Check List Lep. Can. & U.S. Amer., p. 103, 

 no. 9574. (New synonymy.) 



Walsingham's original description follows: 



Hypoclopus griseus — Palpi, cf, overarching the thorax and reaching to its 

 posterior margin; ? short, standing straight forward from the head about 1 mm. 



