STUDIES IN THE AMERICAN BUPRESTID^ 97 



i6 — Abdomen with four series of pale spots; body convex and fusiform, 

 generally with rather distinct green or violaceous metallic lustre 17 



Abdomen with a single series of pale spots at each side 21 



17 — Pronotum^strongly declivous laterally, the side margins and apical 

 angles not visible from above. Form elongate, convex, the lustre pol- 

 ished, feebly violaceous, more evidently so beneath; head strongly and 

 not very densely punctate, the median line narrowly smooth anteriorly 

 but without other callous spots, the eyes ( $ ) margined internally 

 throughout with an internally bisinuate red border, the front also with 

 two anterior elongate red spots; eyes rather prominent; antennae mod- 

 erate; prothorax three-fourths wider than long, unusually parallel, the 

 medially subprominent apex fully three-fourths as wide as the base, 

 the sides evenly converging from base to apex, evenly and feebly arcu- 

 ate; surface evenly convex, with an oval orange spot at the sides of the 

 apex, coarsely, generally sparsely and unevenly punctate, having sub- 

 lateral areas and the median line impunctate, the latter wath a small 

 deep basal puncture; elytra but little wider than the prothorax, twice 

 as long as wide, parallel, the sides very gradually rounding and con- 

 verging in apical two-fifths, the apices rounded, transverse toward the 

 suture, the latter scarcely prolonged; surface wdth the intervals alter- 

 nately wider, moderately convex and sparsely punctate and narrower, 

 flatter and more closely punctate; under surface strongly punctate, 

 the abdomen less densely, shining, wholly immaculate excepting two 

 small rounded red spots at each side of segments two to four and one 

 transverse near each side of the fifth, sulcate basally. Length ( 9 ) 

 17.8 mm.; width 6.8 mm. Colorado (?) — Cab. Levette. 



rubronotans n. sp. 



Pronotum not strongly declivous laterally, the side margins and apical angles 

 visible from above 18 



18 — Prothorax much narrower than the elytra, the sides not continuous. 

 Body less convex, polished, the anterior parts feebly, the elytra strongly 

 metallic green, the under surface violaceous; head (9) as in the pre- 

 ceding but with the eyes less prominent and with more developed pale 

 orange marking, the latter completely enclosing the front except at 

 the middle posteriorly; prothorax two-thirds wider than long, trape- 

 zoidal, the sides evenly converging throughout, very feebly arcuate ex- 

 cept apically, the margins antero-laterally orange- red; surface coarsely, 

 closely, unevenly punctate, tumid submedially near each side, with 

 but few small irregular callous spots, the median line uneven, impunc- 

 tate, feebly striate medially toward base but without distinct sub- 

 basal puncture; elytra three-fourths longer than wide, two- fifths wider 

 than the prothorax, the sides feebly converging and broadly sinuate, 

 becoming somewhat gradually rounded and oblique, then nearly straight 

 to the rounded apices, the sutural angle dentate; surface nearly as in 

 the preceding but with much less unequal intervals either in width or in 

 their generally feeble convexity; under surface less punctate, the pol- 

 ished abdomen finely and sparsely so, the spots orange, those of the 



