NORTH AMERICAN ACROLOPHIDAE — HASBROUCK 583 



Tegumen glabrous, lateral arms very broad, dorsal area very broad 

 and not separated along meson. 



Harpe simple. Lateral aspect: major central portion very broad, 

 lacking dorsal and ventral constrictions; costa and sacculus indis- 

 tinctly fused, greatly reduced, comprising slightly more than basal 

 quarter of harpe, glabrous, broadest in apical portion, approximate 

 basal two-thirds markedly narrowed, basal extremity rather narrowly 

 rounded; cucullus greatly enlarged, comprising slightly less than 

 apical three-fourths of harpe, indistinctly fused with costa and sac- 

 culus, heavily punctate and setose ectad and entad except near base, 

 broadest in apical half, dorsal margin weakly sinuate and curving 

 slightly dorsad at base and apex, ventral margin sinuate and with 

 central portion broadly expanded ventrad, approximate apical third 

 strongly narrowing ventrad, apex narrow and directed dorsocaudad, 

 apical extremity rather narrowly rounded. 



Transtilla with arm rather long and slender, glabrous, major portion 

 parallel with dorsal margin of costa, terminating subacutely slightly 

 proximad of basal extremity of harpe. 



Uncus bifid. Dorsal aspect: base partially separated from tegumen 

 by narrow areas of reduced sclerotization, sparsely punctate; lateral 

 margins heavily sclerotized, weakly sinuate, converging distad; angle 

 of bifurcation rather narrow, rounded; furcae rather elongate and 

 slender, tubular, well sclerotized, glabrous, basal portions rather 

 closely subparallel, apical portions converging distad, major portions 

 directed only slightly ventrad; apices curving strongly ventrad, 

 approximate, acute. 



Gnathos fused, in form of well sclerotized flap directed ventrocaudad, 

 rather short and broad, dorsal surface finely but densely scobinate, 

 apex broadly and evenly rounded. 



Anellus membranous, unarmed, juxta absent. 



Aedeagus rather small, shortened, subconical, asymmetrical, gla- 

 brous; in lateral aspect base with subtriangular, ventrocephalic ex- 

 pansion approximately two-thirds as large as remainder of aedeagus; 

 major apical portion gradually tapering distad, apical third narrow 

 and opening dorsad, apex narrowly and uTegularly rounded. 



Vesica small, membranous, unarmed. 



Type. — Holotype c? (type no. 61440) in the U.S. National Museum, 



Paratypes (9 cTcf). — Illinois State Natural History Survey (8 

 cf c?); U.S. National Museum (1 d"). 



Type locality. — Douglas, Cochise Co., Ariz. (July 1-7, collector 

 unknown). 



Distribution. — Southwestern United States. Arizona, New Mexi- 

 co, and Texas. 



676-573—64 7 



