STUDIES IN THE AMERICAN BUPRESTID^ II3 



is Strongly impressed throughout; elytra similar though relatively 

 broader, nearly a fourth wider than the prothorax and each with very 

 small pale points near apical third and seventh or eighth; under 

 surface with the fine punctures a little stronger. Length 17.0 mm.; 

 width 6.0 mm. Oregon oregona n. subsp. 



D — Still more depressed, polished, green with cupreous lustre, the elytra 

 cupreous, with the broad sutural regions green; under surface as in 

 oregona; head and eyes as in that form, the prothorax also similar 

 though a little shorter, with dense sublateral areas of smaller punc- 

 tures than in oregona; scutellum a little larger; elytra shorter though 

 more than twice as long as wide, a little wider behind the middle than 

 at base, a third wider than the prothorax, the sides more rapidly 

 rounding and oblique posteriorly and becoming more rectilinear 

 than in either of the preceding and in nearly apical two-fifths; sur- 

 face less coarsely sulcate, the grooves more finely though confusedly 

 punctate, the intervals wider, nearly flat, still more finely and re- 

 motely punctate than in the two preceding, each with a small pale 

 spot only a little behind the middle and another near apical 

 eighth; under surface somewhat less finely punctate, the femora more 

 evidently. Length 16.0 mm; width 5.8 mm, British Columbia 

 (Golden) obliqua n. subsp_ 



45 — Sides of the prothorax evenly and unusually strongly rounded, becom- 

 ing strongly convergent and gradually straighter anteriorly before about 

 the middle. Body above very deep and uniform bluish-green through- 

 out, the under surface green to bluish, with faint aeneous reflection 

 laterally on the abdomen only; head not coarsely, very densely and 

 coalescently punctate, with the median line somewhat elevated but not 

 smooth; eyes not prominent; antennae black; prothorax much shorter 

 than in any other allied species, fully twice as wide as long, the apex 

 much narrower than the base, broadly and almost evenly sinuate, 

 the base sinuate only near each side; surface scarcely visibly impressed 

 medially, the basal fovea distinct, the sublateral rounded and densely 

 sculptured impression rather small; surface strongly punctured, closely 

 but not very confluently so laterally; scutellum small, elongate; elytra 

 long, two and one-half times as long as wide, only very slightly wider 

 than the prothorax, the sides almost rectilinearly oblique in more than 

 apical third, the narrow apices very feebly sinuato-truncate; surface 

 with the deep, densely and confusedly punctate sulci as wide as the inter- 

 vals, sometimes with purplish-blue clouds and occasionally with small 

 post-median pale spots as usual; under surface medially minutely and 

 sparsely punctate. Length 15.5 mm.; width 5.2 mm. New Mexico. 



patruelis n. sp. 



Sides of the prothorax parallel and nearly straight, gradually rounding and 

 moderately convergent anteriorly from near the middle 46 



46 — Form elongate, subdepressed, uniform deep green though not very 

 bright above, brighter and with some aeneous reflection beneath; 

 head small, very densely, confluently punctate, the eyes prominent, 



