656 PROCEEDINGS OF THE NATIONAL MUSEUM vol. ii4 



Tegumen glabrous; lateral arm somewhat expanded below midpoint, 

 narrowing toward basal and apical extremities; dorsal area rather 

 narrow, undivided, with caudolateral extremities produced into pair 

 of rounded projections at points of fusion with base of gnathos. 



Harpe simple, linear. Lateral aspect: costa and sacculus typical, 

 fused, broadest in apical portion, narrowing toward rounded base, 

 glabrous except for sparsely setose ventral margin of sacculus. Cucul- 

 lus well set off from costa and sacculus by ventral emargination, 

 small dorsal expansion, and area of reduced sclerotization; comprising 

 slightly more than apical half of harpe, rather elongate and slender, 

 heavily sclerotized, heavily punctate and setose ectad and entad, 

 dorsal margin smooth and sublinear, ventral margin markedly and 

 irregularly dentate, apex narrowly rounded. 



Transtilla with arm of medium length, rather broad, glabrous, 

 weakly sinuate, extending to or slightly beyond basal extremity of 

 harpe, apex weakly and u-regularly expanded. 



Uncus simple, except at extreme apex. Dorsal aspect: base 

 rather weakly sclerotized, sparsely punctate and setose, cephalic 

 margin emarginate mesad, lateral margins linear and converging 

 distad into uncal process; uncal process indistinctly fused with base, 

 heavily sclerotized, concave beneath, gradually narrowing distad, 

 apical two-thirds curving considerably ventrad, apex minutely and 

 acutely bifid. 



Gnathos paired, very distinctive, glabrous; lateral margins heavily 

 sclerotized, angle of bifurcation broadly and evenly rounded; arms 

 elongate, broad, with apical halves narrowing distad, very heavily 

 sclerotized and darkened, gradually diverging distad, directed ventro- 

 caudad, apices acute. 



Anellus membranous, unarmed, juxta absent. 



Aedeagus rather short, slender, asymmetrical, glabrous. Lateral 

 aspect: portion somewhat basad of center cm-ving through angle of 

 approximately 90° resulting in apical three-fifths of aedeagus extend- 

 ing almost dhectly ventrad, base broadly and irregularly expanded 

 laterad and ventrad, basal half C3dindrical and narrowing ventrad 

 toward apex; major portion of apical half opening dorsad and con- 

 sisting of rather narrow, well sclerotized, ventral strip vnth subacute 

 apex. 



Vesica elongate, slender, membranous, unarmed. 



Type. — Holotype 9 and d^ and 9 "cotypes" (type no. 61454) in 

 the U.S. National Museum. 



Type locality. — Palmerlee, Cochise Co., Ariz. 



Distribution. — Southwestern United States. Arizona. 



Sources of material. — American Museum of Natural History 



