DYNASTIN/E 199 



A Similar but a little narrower and more obscure rufous, the head 

 nearly as in rnbidus but the prothorax is relatively a little smaller, 

 though similar in outline, and the punctures are everywhere 

 stronger, becoming only slightly sparser basally, but not toward 

 the sides, and with an impunctate median area basally, which is 

 not at all denned in rubidus; scutellum similar; elytra also similar 

 but with the punctures not so coarse, rather more numerous and 

 less deeply impressed; pygidium less transverse and everywhere 

 strongly and deeply punctate, except medially toward apex, 

 where the punctures become fine and sparser; toward base the fine 

 shallow rugulosity of rubidus is replaced by dense punctulation, 

 similar to that pervading the rest of the disk and, on the median 

 line above the centre, there is a shallow oblong impression, which 

 is not at all visible in the type of rubidus. Length (cf 9 ) 12.4- 

 14.0 mm.; width 7.4-8.6 mm. Colorado (Denver). Four 

 examples. A male specimen marked "Texas" is somewhat 

 similar to rubidus and lucitblandus but differs in certain minor 



features lucublandus n. subsp. 



13 Elytra short, not or barely at all longer than wide and always coarsely 



and conspicuously sculptured 14 



Elytra distinctly longer than wide and comparatively finely sculptured. 15 

 14 -Body oval in form, strongly convex, shining, the elytra but very 

 little wider than the prothorax. Color dark piceous, the legs and 

 under surface obscure rufous; head barely two-fifths as wide as the 

 prothorax, rather loosely rugulose, smooth basally, the carina sharp 

 and even but not approaching closely to the sides; prothorax re- 

 latively well developed, three-fifths wider than long, trapezoidal, 

 with the sides feebly, arcuately prominent beyond the middle, the 

 basal angles broadly rounded; punctures strong, rather close-set, 

 becoming sparser and a little less coarse basally and laterally and 

 finer medially behind the moderate fovea, the punctures umbilicate; 

 toward base, the median line is impunctate; scutellum smooth, with 

 a minute post-central fovea; elytra but little longer than wide, only 

 slightly wider than the prothorax and barely twice as long, circularly 

 rounded in fully apical two-fifths; punctures not very close-set but 

 coarsely impressed, each with a circular annulus, the series not 

 evidently impressed; pygidium finely and feebly scabriculate along 

 the base, elsewhere not coarsely but very distinctly, sparsely punc- 

 tate, more finely and sparsely in a small apical region; legs short, the 

 hind tibise nearly smooth, much shorter than the femora and barely 

 more than twice as long as their apical width. Length (cf ) 14.7 



mm.; width 8.0 mm. New Mexico curtipennis n. sp. 



Body broadly oblong-oval, gradually much dilated behind, deep shining 

 black in color, the under surface and legs pure pale red-brown; head 

 two-fifths as wide as the prothorax, sculptured as usual, the carina 

 sharply elevated and even but unusually short, about half as long 

 as the distance between the eyes; prothorax two-thirds wider than 

 long, the sides almost evenly and strongly arcuate, more rapidly 

 converging apically, the basal angles not broadly rounded from above; 

 punctures strong, rather sparse, becoming more remote basally and 



