4l8 CALIFORNIA ACADEMY OF SCIENCES. 



than wide, base as wide as the base of thorax, humeri 

 obhque, marginal costa extending three-fourths to apex, 

 disc convex with a well marked costa extending from 

 base within the humerus more than two-thirds to apex, 

 within this costa a much fainter one, nearly as long, 

 slightly oblique to the suture, surface finely and moderately 

 closely granulate. Prosternum coarsely closely punctate, 

 propleurae punctate-granulate. Mesosternum and meta- 

 sternum granulate. Abdomen muricately punctate, more 

 coarsel}" at the sides. Legs muricately punctate with short 

 hairs. Length, .52 inch; 13 mm. 



This species with the general outline and facies of 

 carinata has the disc of the thorax convex and more 

 roughly sculptured for its size than any species in our 

 fauna. The inner costa of the elytral disc is very faint 

 resembling' a similar structure in actuosa where the costa 

 may be entirely absent. 



Two specimens. One in Mr. Wickham's cabinet from 

 N. Yakima, Wash., the other in my own labelled doubt- 

 fully as from Oregon. 



AsiDA IMPETRATA u. sp. Plate vii, fig. 4. 



Form oblong resembling parallcla, piceous or dark 

 brown, dull. Head coarsely not closely punctate, occiput 

 and neck densely punctate. Thorax at least one-half 

 wider than long, widest slightly behind the middle, base 

 not wider than apex, apex emarginate with angles prom- 

 inent to the front, sides regularly arcuate, hind angles 

 rectangular, disc feebly convex, the lateral margin slightly 

 explanate and slightly reflexed, surface moderately 

 coarsely, evenl}^, but not densel}^ punctate, along the 

 lateral margin very coarsely punctate, surface with ex- 

 tremely short yellow hairs, the lateral edge similarly 

 fimbriate. Elytra oblong, twice as long as wide, at base 



