NORTH AMKRICAN C0LE0PTP:RA. 9 



ward atid backward and then forward to the marjiin and sometimes extend- 

 ing forward on the sides to the humeri and narrowly backward to the posterior 

 fascia which reverses the direction of the anterior one extending first forward 

 and then backward. Body beneath more shining, strongly and closely punctu. 

 late, a little more sparingly on the presternum, more coarsely and confluenlly 

 towards the base of the flanks of the prothorax. deeply, coarsely and conflueutly 

 punctured on the posterior half of the fourth ventral and on the last, submar- 

 ginal line of prothorax cariniform extending to middle or anterior third, post- 

 coxal process moderately long, somewhat ascending, not margined behind ; the 

 hind coxal plates are narrowed externally, very strongly in one specimen and 

 broadly rounded, the external angle distinct in two others and rounded. Legs 

 with femora dark, tibite and tarsi more or less rufous, middle and hind tarsi with 

 the first joint much longer than the last. Length .2n-.28 inch : 6.1-7.1 mm. 



California. Three female.s, Dr. Horn and Mr. Ulke. 



Differs from the species described below as stigmaticvs bv the 

 greater convexity, the stronger stri» with convex intervals and the 

 prosternal process less strongly ascending. In the three females ob- 

 served this process is not distinctly visible, but it is jjrobably not 

 margined. This species seems to be somewhat analagous to the 

 Eastern cardisee, but it differs by the prosternal process not (?; mar- 

 gined behind and by the narrower hind coxal plates. 



5. C. coxalis n. sp. — Robust, purplish black, opaque, clothed with yellowish 

 cinereous pubescence, elytra four spotted. Antennse black, moderately stout and 

 serrate, and longer than the head and thorax in both sexes. Head and thorax 

 densely finely punctate with intermixed sparser coarser punctures. Thorax 

 equally wide as long in the %, . wider than long in the ^ , convex, sides strongly 

 rounded, more narrowed in front than behind, distinctly longitudinally impressed 

 at middle, basal plicie well marked, moderate in length, median basal tooth more 

 prominent, hind ansiles 'runcate above, produced beneath, the carina not joining 

 the submarginal. Elytra with median and posterior subfasciate yellow spots, 

 moderately convex, sides rounded and gradually narrowed from middle to apex, 

 mujh as in cardisee. strongly striate, more so at sides and apes, punctures 

 strong, intervals flat, rather densely punctured. Beneath shining, moderately 

 densely punctulate and with sparser coarser punctures, hind angles of propleurje 

 acute, scarcely sinuate within behind, submarginal suture cariniform. reaching 

 the anterior third, postcoxal process short, strongly ascending, not margined 

 behind, hind coxal plates distinctly dilated behind, hind margin of the fourth 

 segment and the fifth segment coarsely, the latter densely punctured. Legs 

 slender, black, of the usual form. Length .2.5-.27 inch : 6-7 mm. 



Oregon, one pair S and 9 in Mr. Ulke's collection. 



Resembles the next, but differs by the color and by the form of 

 the posterior cox*. The elytra are more acuminate and the head is 

 less coarsely and densely punctured. The 9 is considerably stouter 

 than the % . 



TKAXS. AM. EXT. SOC. XVI. 21 TAN-UAKY. 1S89. 



