NORTH AMERICAN ACROLOPHIDAE — ^HASBROUCK 597 



characterized in the key and in the foregoing remarks on maculijer. 

 All three species may be distinguished from one another, as well as 

 from all other acrolophids treated here, on the basis of their harpes 

 and aedeagi. The latter organ is of especial value in the separation 

 of these three species which are otherwise so similar in regard to gen- 

 eral habitus and genital structure. In crescentellus, the aedeagus is 

 sublinear except at its basal and apical extremities. The genital 

 characters are consistent throughout my rather small series of this 

 species. 



Kearfott originally described this species under the genus, Amydria, 

 apparently not considering it to be an acrolophid. Busck (1910) prop- 

 erly transferred it to Acrolophus and said of it: "This species is nearest 

 Acrolophus (Eulepiste) cressoni Walsingham." The three cT cotypes 

 now in the U.S. National Museum have recently been assigned a type 

 number during the course of this revision. They are labeled '^ Amydria 

 crescentella Kearf." Two of these specimens are further labeled 

 "Baboquivaria Mts., Pima Co., Arizona, July 15-30, 1903, Coll. O. C. 

 Poling." The third specunen bears the label, "Baboquivaria Alts., 

 Ariz., F. H. Snow." My examination of these cotypes found them to be 

 identical and confirmed the identity of this species. 



22. Acrolophus piger (Dyar) 



Figures 112-117 



Ortholophus piger Dyar, 1900, Can. Ent., vol. 32, no. 11, pp. 327-328, Nov.— 



Dyar, 1903, List North Amer. Lep., p. .579, no. 6597. 

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



p. 191, no. 8189.— McDunnough, 1939, Check List Lep. Can. & U.S. Amer., 



p. 103, no. 9579. 



Dyar's original description follows: 



Ortholophus piger — Palpi erect, reaching above vertex, free from front, rather 

 smoothly scaled. Fore wings light cinerous, slightly violaceous; an ochreous 

 shade over centre of wing, limited inwardly by a black, mottled line from basal 

 third of costa to above centre of inner margin, and outwardly by a similar line 

 from below outer fourth of costa to opposite centre of outer margin, not reaching 

 either margin. Between these lines the ochreous shade does not reach the costa, 

 and is incised opposite the outer third of inner margin. Wing sparsely irrorate 

 with black, distinctly along costa and in the ochreous shade. A group of dark 

 scales on centre of outer margin. Hind wing blackish, pale along costal edge and 

 extreme base. Expanse 17 mm. Male genitaHa with uncus simple, gently curved, 

 broadening toward base; harpes broadly rounded, spoon-shaped, strongly con- 

 tracted at base, tips evenly rounded. 



Three specimens; San Diego, Texas; May 24 to 26 (E. A. Schwarz) ; U.S. Nat. 

 Mus., type No. 5348. 



Male genitalia .^ — Vinculum typical, as in other species. 



