NORTH AMERICAN ACROLOPHIDAE — HASBROUCK 641 



It is apparently quite common in Central America, the U.S. National 

 Museum having numerous specimens. 



35. Acrolophus juxtatus, new species 



Figures 168-171 



Female unknown. 



Male. — Head, labial palpi, antennae, and thorax ochreous tinged 

 with fuscous. Labial palpi shortened, partially recurved over head 

 and extending well above and beyond antennal bases, rather 

 densely clothed with slender scales, basal portions narrowly separated 

 from each other but closely appressed to head, apical portions closely 

 appressed to each other and extending above head, apical segments 

 becoming increasingly fuscous distad. Ej^es moderately large and 

 protruding, naked, rather heavily lashed. Antennae strongly bipec- 

 tinate, densely covered dorsad by scales; segmental processes slender 

 and broadly separated from one another in lateral aspect, free of 

 scales but finely ciliated. Forewings brown with dark brown or 

 fuscous markings consisting of short bars along costal margin, large 

 spot at outer end of cell, and patch bordered by two paler areas on 

 and beneath center of fold. Color pattern of forewings somewhat 

 variable. Hindwings and fringes brown. Abdomen covered with 

 pale brownish scales, these in turn largely covered by elongate hairs 

 of similar color. Wing expanse: 22 mm. 



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



Tegumen glabrous; lateral arm with central portion broad, evenly 

 narrowing toward extremities; dorsal area of medium width, caudal 

 margin indistinctly fusing mesad with base of uncus. 



Harpe simple. Lateral aspect: costa and sacculus fused, compris- 

 ing somewhat less than basal two-thirds of harpe, glabrous except for 

 elongate setose area along ventrocaudal margin of sacculus, central 

 portion broadly and evenly expanded ventre d, basal third evenly 

 narrowing to slender basal extremity, apical third somewhat narrowed 

 distad. Cucullus partially separated from costa and sacculus by 

 ventral constriction and small area of reduced sclerotization, directed 

 considerably mesad and ventrad, heavily punctate and setose ectad 

 and entad except for small glabrous area at base, approximate basal 

 fourth somewhat narrowed ventrad, apical three-fourths rather broad 

 and with central portion slightly expanded dorsad and ventrad, apex 

 broadly and evenly rounded. 



Transtilla with arm glabrous, well sclerotized, slightly more than 

 one-fifth as long as harpe, basal portion considerably expanded 

 (especially dorsad), apical portion curving ventrad to costa, ter- 

 minating subacutely at basal extremity of harpe. 



