1 62 MEMOIRS ON THE COLEOPTERA 



rugulose, especially apically and suturally, where the strong irregular 

 punctures are very conspicuous; inner vestigial costule and sutural 

 margin rather wide and convex, usually very distinct, the two outer 

 lines fine but evident; sides toward base nearly straight, the humeral 

 carinule extremely short and feeble; abdomen shining, feebly 

 wrinkled; legs short and slender, the hind tarsi barely half as long 

 as the tibiae. Length (9 ) 20.5-21.0 mm.; width 9.3-9.6 mm. New 

 Mexico, Schaupp socialis n. sp. 



9 Elytra very strongly inflated, but little longer than wide and strongly, 

 broadly impressed along the suture. Body moderately convex, 

 black, alutaceous, the elytra blackish to piceo-rufous; head strongly 

 impressed transversely, moderately strongly and not closely punctate 

 anteriorly; prothorax two-fifths wider than long, but little more than 

 half as wide as the elytra, parallel and rounded at the sides, the 

 latter anteriorly becoming broadly sinuate, the apical angles much 

 produced and very acute; surface minutely, sparsely punctulate, 

 obliquely and approximately bi-impressed at the middle of the base, 

 abruptly and deeply concave and more strongly punctate at the 

 sides, the upturned edge thin; basal angles distinct and not rounded, 

 the basal sinus adjoining very feeble; elytra two-fifths longer than 

 wide, the surface perfectly even, opaque, finely creased and punctu- 

 late throughout, the apical lobe small and obtusely projecting; 

 humeral carinule very short and subobsolete in the type, very dis- 

 tinct in another example; abdomen nearly smooth, punctulate 

 posteriorly, the fifth segment punctate and feebly, transversely 

 rugulose, the entire posterior margin of the fourth deeply parabolic; 

 legs very slender. Length (9 ) 18.5-19.2 mm.; width 9.7-10.3 mm. 

 Arizona (Huachuca Mts.) huachucae n. sp. 



Elytra much less inflated and more elongate as a rule, never impressed 

 suturally or only very feebly and obsoletely so 10 



10 Form moderately inflated, the prothorax transverse, black and rather 

 shining throughout; head feebly bi-impressed, sparsely, rather 

 strongly punctate, the vertex finely, sparsely so and gradually 

 tumescent medially at base; prothorax about one-half wider than 

 long, almost as in gliscans, except that the apical angles are not 

 quite so acute, the obtuse basal angles nearly similar, the lateral 

 sinuses of the base much broader and feebler, the concavo-explanate 

 side margins narrower; elytra relatively longer in the male, three- 

 fifths wider than the prothorax and fully one-half longer than wide, 

 the apical lobe similarly moderate in size and distinct, the sides 

 arcuate, the humeral carinule nearly similar, rather short but 

 evident, less broadly flattened and feebly convex medially, the 

 vestigial costules evident; surface decidedly rugose, confusedly, 

 deeply creased and with small sparse punctures, becoming strong 

 and uneven in size suturally; abdomen shining; legs moderately 

 long, very slender, Length (cf, 9) 18.0-19.5 mm.; width 8.5-9.0 

 mm. New Mexico (Thornton, Magdalena Mts. and Jemez Springs). 

 Abundant censors n. sp. 



Form nearly as in consors but differing in its piceous-brown elytra, 



