NORTH AMERICAN ACROLOPHIDAE — HASBROUCK 643 



combination of rather short labial palpi, naked eyes, strongly bi- 

 pectinate antennae, simple uncus, and fused gnathos. In addition, 

 the genital characters of juxtatus are also quite distinct from those of 

 all the other species treated here. Its uncal process and harpe are 

 characteristically shaped, its aedeagus is markedly asymmetrical and 

 distinctive, and its anellus is armed with a prominent juxta. 



The name, juxtatus, is derived from the Latin word, juxta, meaning 

 "near to, nigh," and the suffix, -atus, meaning "provided with." In 

 the terminology of the Lepidoptera, the adverb, juxta, has been taken 

 from the Latin and directly applied as the name of a male genital 

 structure. It is used here in this sense, referring to the presence of a 

 distinct and characteristic juxta in this species. 



36. Acrolophus chiricahuae, new species 



Figures 172-174 



Female unknown. 



Male. — Somewhat resembhng dorsimaculu^ in general habitus. 

 Head, labial palpi, and thorax ochreous suffused with fuscous. Labial 

 palpi intermediate in length, recurved back over head and extending 

 across anterior third of thorax, closely appressed to head and to each 

 other, strongly diverging from thorax distad, clothed with slender 

 scales. Eyes large, protruding, naked, moderately lashed. Antennae 

 strongly bipectinate, ochreous, covered dorsad by scales; segmental 

 processes rather robust but well separated from one another in lateral 

 aspect, free of scales but finely ciliated. Forewings with color pattern 

 quite variable, ground color and markings various shades of brown; 

 costal margin with alternate dark and light bars, apical and posterior 

 margins with broad ochreous patches, apical third with irregular brown- 

 ish marking between outer end of cell and apex, basal two thirds deep 

 brown above fold. Hindwings and fringes pale brown. Abdomen 

 brown, tinged with fuscous beneath. Wing expanse: 26 to 28 mm. 



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

 rotized. 



Tegumen glabrous; lateral arm broadest in central portion, nar- 

 rowing toward extremities, margins sinuate ; dorsal area narrow. 



Harpe simple. Lateral aspect: rather elongate and slender, sinu- 

 ate, with approximate apical quarter curving considerably ventrad; 

 costa and sacculus fused, comprising basal half of harpe, glabrous 

 except for punctate and setose ventrocaudal portion of sacculus, broad- 

 est in apical third, gradually narrowing basad to subacute basal ex- 

 tremity; cucullus indistinctly separated from costa and sacculus by 

 ental area of reduced sclerotization, comprising approximate apical 

 half of harpe; very heavily punctate and setose ectad and entad ex- 



