I02 CASEY 



A — Nearly as in fusca but shorter and more oblong, the head smaller 

 but otherwise nearly similar, the eyes not at all prominent, the cen- 

 tral punctuation less fine and rather less crowded, the antennae 

 somewhat thicker; prothorax more transverse, not quite twice as wide 

 as long, the sides broadly, subevenly rounded, more converging but 

 still arcuate anteriorly, the punctures rather sparser; scutellum rounded ; 

 elytra shorter, evidently less than twice as long as wide and not very 

 evidently wider than the prothorax, otherwise similar; abdomen as in 

 fusca but somewhat less strongly and decidedly sparsely punctate, 

 the lateral yellow spots smaller throughout. Length (?) 17.0 mm.; 

 width 6.7 mm. Montana sublivida n. subsp. 



Form nearly as 'm. fusca but much smaller in size, shining black, thepronotum 

 sometimes violaceous; head nearly similar but with less evident and 

 much smaller central punctate area, the front yellow (d^), excepting 

 two large posterior areas, or with the yellow area more contracted and 

 broken into spots (9); eyes slightly convex; antennae rather long; 

 prothorax nearly twice as wide as long to distinctly less; the sides 

 sometimes slightly prominent near basal third but generally almost 

 even; surface less coarsely and more densely punctate than in morosa 

 though smilarly irregular, slightly impressed sublaterally behind the 

 middle; scutellum rounded; elytra not quite twice as long as wide, but 

 little wider than the prothorax as a rule, sculptured as in fusca, vdth 

 almost equally distinct punctuation though rather less strongly alter- 

 nating intervals; abdomen shining, alutaceous, strongly, rather closely 

 punctate, the orange lateral spots distinct, subequal, those of the fifth 

 segment somewhat obliquely transverse, moderate, basal sulcus strong, 

 the second segment also sometimes slightly impressed medially. 

 Length (c?, 9) 14. 0-17.0 mm.; width 5.2-6.8 mm. Colorado (Boul- 

 der Co. and Ouray) and New Mexico (Albuquerque and Cloudcroft) . 



caliginosa n. sp. 



27 — Pronotum with four rounded impressions near the base, one on each 

 side of the basal sublateral callus. Head rather small, densely punc- 

 tate and somewhat impressed medially on the front, with several small 

 smooth patches and with well developed yellow maculation, the eyes 

 not prominent; antennae rather slender; prothorax small, two-thirds 

 wider than long, widest at basal third, where the sides are prominently 

 rounded, thence rather strongly converging anteriorly and less strongly 

 posteriorly and nearly straight; apex and base bisinuate; surface coarsely 

 punctate, densely laterally, the sublateral smooth spots prominent, the 

 smooth median line irregular, feebly striate basally; elytra almost a third 

 wider than the prothorax, less than twice as long as wide, parallel, oblique 

 but rounded at the sides in apical third, the apices truncate but with 

 obtuse angles; surface with the equal intervals slightly alternating in 

 convexity, the punctures sparse as usual but strong and distinct; abdo- 

 men strongly, rather closely punctate, narrowly sulcate at base; seg- 

 ments two to four each with a small lateral spot, the fifth with a large 

 entire fascia which is sinuate at the middle of its anterior margin, 

 arcuato-truncate at tip, with rounded angles. Length (9) 16.7 mm.; 

 width 6.5 mm. Montana nigricans n. sp. 



