STUDIES IN THE AMERICAN BUPRESTID^ 95 



rather distinct oblique smooth Hnes, the median Hne of the occiput 

 broadly smooth and concave; anterior half of the front yellow, with a 

 posterior spur at the middle and two small anterior black points, also 

 with a more posterior obUque spot near each eye, the latter large but 

 not prominent; antennas rather slender; prothorax small, moderately 

 transverse, the sides arcuate basally, the apex broadly prominent and 

 arcuate, only very feebly sinuate laterally; surface coarsely, closely punc- 

 tate, with pale margins and impunctate areas as in diruptans, the sub- 

 lateral smooth vitta partially interrupted by a small deep foveiform 

 impression; elytra much wider than the prothorax, strongly cuneate 

 from the base, broadly rounded and subprominent laterally behind the 

 middle, the sides thence rapidly oblique, becoming subsinuate to the 

 apex; under surface strongly punctate; femora and abdomen without 

 pale spots, except a small one at each side of the last segment. Length 

 (c?) 17.0 mm.; width 6.3 mm. Washington State (Tacoma). 



contorta n. sp. 



Elytra subparallel, not very prominent subbasally and but feebly sinuate 

 laterally, the second ventral unmodified in the male 13 



13 — Basal inflated part of the prothorax with the sides broadly rounded. 

 Pacific regions 14 



Basal inflation more abrupt, angulate or tumescent, the head, pronotum 

 and under surface more cupreous. Atlantic regions 15 



14 — Form oblong, parallel, only moderately convex, shining, colored as in 

 contorta and with the general characters similar, except that the head 

 and prothorax are relatively larger (c?), the latter almost as wide as the 

 elytra, the head nearly similar in sculpture and ornamentation, except 

 that the upper pale spots near the eyes are less oblique and less poste- 

 rior; eyes rather small and not at all prominent; prothorax with the 

 apical margin even more strongly and prominently arcuate medially, 

 the callous smooth areas similar, the small impression on the outer 

 side of the sublateral vitta less marked; sides near the base less broadly 

 prominent than in the two following forms; elytra but three-fourths 

 longer than wide, very rapidly oblique behind in less than apical third; 

 under surface strongly but not densely punctate, shining, vnth the 

 usual sternal and coxal pale spots, the femora with an elongate pale 

 spot beneath, the abdomen with a pale spot at each side of the basal 

 sulcus and another transverse at each side of the last segment. Length 

 (c?) 17.8 mm.; width 7.4 mm. California gravidula n. sp. 



A — Nearly as in gravidula throughout though a little narrower, the head 

 ( d^) with larger and much more prominent eyes, the median line and two 

 lateral discal spots smooth, the pale area confined to the entire apical 

 margin, running along the eyes from above the middle to the base of 

 the head beneath, the median posteriad pale spur long; prothorax 

 similar; elytra more elongate, more gradually and less strongly oblique 

 at the sides posteriorly in apical two-fifths, feebly arcuate even near 

 the apices; under surface nearly similar, the femora and abdomen 

 without pale spots, except a slender oblique line at each side of the 



Proc. Wash. Acad. Sci., April, 1909. 



