STUDIES IN THE AMERICAN BUPRESTID.E 99 



A — Nearly as in subornata but more elongate, more convex, with less 

 unequally convex elytral intervals and with the sides of the elytra much 

 more gradually rounding posteriorly and thence more gradually 

 oblique and more evidently arcuate to the apices, the latter broadly 

 rounding, very oblique thence to the strongly dentate sutural angles; 

 head and prothorax nearly similar, except that the latter is less trans- 

 verse, the elytra more elongate; abdomen similarly deeply sulcate 

 along the median line of the first segment, coarsely, densely and very 

 conspicuously punctate throughout, the spots as in subornata but 

 deeper orange-red in color. Length (9) 18.5 mm.; width 6.9 mm. 

 Colorado (Boulder Co.) punctiventris n. subsp. 



Form narrower than in subornata but only slightly more convex, shining, 

 obscurely violaceous ; head ( 9 ) strongly but rather sparsely, irregularly 

 punctate, similarly ornamented, the eyes rather more convex; pro- 

 thorax nearly as in subornata, the punctures similarly sparse and irreg- 

 ular but smaller medially, the sides broadly arcuate in basal half, 

 thence nearly straight or less arcuate to the apex, the punctures becom- 

 ing relatively coarser and denser near the sides than in subornata; 

 scutellum oblong, parallel, flat; elytra nearly twice as long as wide, 

 almost as in subornata, except that the surface is more punctured, the 

 punctures less fine; abdomen distinctly punctured but much less coarsely 

 or closely than in the two preceding forms, the spots small, red, those 

 of the lateral pairs not approaching each other transversely, the two 

 of the last segment very different, being transverse, not at all ramate 

 posteriorly along the margin and uniting on the median line to form a 

 single transverse fascia. Length (9) 17.2 mm.; width 6.5 mm. 

 Kansas violescens n. sp. 



21 — Form nearly as in the preceding, elongate, fusoid and notably convex; 

 elytra strongly longitudinally undulated medially 22 



Form more parallel and notably less convex; integuments black, never with 

 the marked metallic lustre of the preceding section, the elytra more even 

 and less undulated 23 



22 — Body black-bronzed, punctured, glossy; head with a levigated eleva- 

 tion in the centre between the eyes, channeled behind, marked 

 with two yellow spots beneath on the cheeks, a triangular one 

 adjacent to the eyes on the inner side and two dots of the same color 

 between them; prothorax coarsely punctate, with smooth spaces, the 

 discal one longitudinal, with an ante-scutellar impression; sides con- 

 verging at the base of the prothorax; anterior angles with a yellow stripe; 

 elytra strongly furrowed, with numerous very minute punctures in the 

 furrows, rounded at apex; interstices with scattered punctures, those 

 of strias 2-3, 4-5 and 8-9 elevated so as to form an obtuse ridge; four 

 last ventral segments of abdomen having on each side a reddish-yellow 

 spot, those on the last segment being the largest and most irregular; 

 anus with two distinct lateral teeth. Length 18.5 mm. British Amer- 

 ica (Latitude 54°, — Kirby , and one specimen vdthout more exact locality 

 than"B. A." received from Chas. W. Leng); Washington State. 



rusticomm Kirby 



