626 PROCEEDINGS OF THE NATIONAL MUSEUM vol. ii4 



Busck's original description of leopardus follows: 



Acrolophus leopardus — Labial palpi of the same form as in the preceding species 

 (occidens) ; ochreous white, mottled with fuscous, especially exteriorly. Antennae 

 light fuscous. Face and head white. Thorax ochreous white, sprinkled with 

 fuscous. Patagina fuscous. Fore wings ochreous white, dotted with small black- 

 ish brown spots in rather regular transverse rows. Across the outer end of the cell is an 

 interrupted, poorly defined blackish brown obhque streak, parallel with the termi- 

 nal edge; on the apical part of the wing the dark spots are larger and arranged in 

 rows between the apical veins. Hind wings dark fuscous. Abdomen dark fuscous. 

 Legs ochreous, tarsi with black annulations. 



Alar expanse, 17 tol8 mm. 



Habitat — San Diego, Cahfornia. July. L. E. Ricksecker, coll. 



Type— No. 12695, U.S. National Museum. 



A small very distinct species nearest to Acrolophus (Neolophus) punctatus (= 

 punctellus) Busck, lacking, however, the bluish-black dusting and differing also in 

 theunmottled head and palpi and the spotted wing-pattern. 



Male genitall\. — Vinculum typical; consisting mostly of large, 

 subtriangular, rather heavily sclerotized, ventral plate. 



Tegumen as in occidens. 



Harpe simple, slightly variable, considerably constricted ventrad 

 near center. Costa and sacculus approximately as in occidens. Cucul- 

 lus similar to but distinct from that of occidens; broadest near apex, 

 gradually narrowing proximad to marked ventral constriction at base, 

 dorsal margin very weakly concave, ventral margin moderately convex; 

 apex subobliquely truncate, with margin weakly concave and sinuate, 

 with dorsal angle nearly squared, with ventral extremity evenly round- 

 ed and extending considerably further caudad than dorsal angle. 



Transtilla with arm similar to that of occidens, but shorter and con- 

 siderably thicker. 



Uncus similar to that of occidens, but with base largely fused with 

 tegumen, 



Gnathos similar to that of occidens, but with apex narrower and 

 slightly upturned. 



Anellus as in occidens. 



Aedeagus similar to that of occidens; approximate basal fourth mod- 

 erately expanded and ciu^ving somewhat dorsad, apical three-fourths 

 of nearly constant width, apex deeply cleft. 



Vesica as in occidens. 



Remarks. — The holotype cf, collected on July 20, was studied at 

 the U.S. National Museum, where its genitalia were removed for me 

 by Dr. Clarke and its identity confirmed. A slide of cf genitalia 

 labeled '^Acrolophus leopardus Busck — San Diego, Calif. — A. Busck" 

 was also examined at the U.S. National Museum. This further con- 

 firmed the identity of leopardus. I have not seen the 9 of leopardus 

 but I have ten c? cf from San Diego, San Diego Co., Calif., collected by 



