602 PROCEEDINGS OF THE NATIONAL MUSEUM vol. lu 



Duzee. A number of the acrolophids collected by him have proved 

 to represent new species. 



24. Acrolophus pseudohirsutus, new name 



Figures 122-124 



Acrolophus hirsutus Busck, 1912, Proc. Ent. Soc. Washington, vol. 14, no. 3, 

 p. 184, Sept. (preoccupied by Brazilian genotype, Thysanoscelis hirsutus 

 Walsingham, 1887, Trans. Ent. Soc. London, pp. 145-146, pi. 7, figs. 3, 3a, 3b, 

 3c. The sinking of Thysanoscelis as a synonym of Acrolophus has resulted 

 in the combination, Acrolophus hirsutus (Walsingham) 1887). — Barnes & 

 McDunnough, 1917, Check List Lep. Bor. Amer., p. 191, no. 8162. — Mc- 

 Dunnough, 1939, Check List Lep. Can. & U.S. Amer., p. 103, no. 9548. (New 

 synonymy). 



Eulepiste (?) hirsutus Barnes & McDunnough, 1913, Can. Ent., vol. 45, no. 12, p. 

 420. 



Busck's original description follows: 



Acrolophus hirsutus- — Labial palpi as in the foregoing species {diver sus), reaching 

 vertex; ocherous, touched with dark brown. Head and thorax dark ocherous, 

 mottled with black; thorax with short ocherous posterior tuft. Forewings ocher- 

 ous, strongly suffused and mottled with dark brown and black; a faint series of 

 terminal and costal dark dots, a black second discal spot, preceded and followed 

 by a clear ocherous space, a short oblique plical spot, surrounded by light scales. 



Hind wings dark brown with lighter base and a faint ocherous submarginal line. 

 Abdomen dark brown above; anal tuft and under side ocherous. 



Alar expanse, 20 to 22 mm. 



Habitat: La Puerta Valley, California, June (Geo. H. Field, collector). 



Type: No. 15123, U.S. Nat. Mus.; cotype in Mr. Field's collection. 



Male genitalia. — Vinculmn typical, as in other species. 



Tegumen typical, glabrous to minutely punctate; lateral arm 

 elongate, slender, evenly narrowing toward point of articulation with 

 vinculum; dorsal area narrow, with cephalic margin emarginate. 



Harpe simple. Lateral aspect: costa and sacculus indistinctly 

 fused, very large, broad, elongate, comprising basal three-fifths of 

 harpe, apical portion moderately and evenly expanded ventrad, even- 

 ly narrowing to slender basal extremity, sparsely and minutely punc- 

 tate, ventrocaudal margin of sacculus heavily punctate and setose. 

 Cucullus separated from costa and sacculus by ventral constriction 

 and area of reduced sclerotization, reduced, shortened, rather slender, 

 sparsely punctate and setose ectad and entad, curving considerably 

 ventrad toward apex, basal portion somewhat narrowed, apical por- 

 tion somewhat expanded, broadest at or near apex, dorsal margin 

 quite smooth although becoming moderately sinuate near apex, cen- 

 tral portion of ventral margin roughly dentate; apex dentate, with 

 5-10 teeth varying in size and shape, ventral tooth commonly larger 

 than others. 



