402 Goleopterological Notices, VII. 



acute and triangular in that species. The genital segment in the 

 type is truncate and feebly, transversely impressed at tip. The- 

 type is a male. 



5. C. formale n. sp. — Eather stout, elongate-oval, polished and stib- 

 impunctate, piceous-black, the elytra dark rnfous, blackish behind ; abdomen 

 blackish, pale at apex ; legs and antennae dark rufous, the femora blackish ;. 

 pubescence long and rather abundant, the darker anterior bristles numerous. 

 Head slightly wider than long, semicircular behind the rather small eyes, which 

 are not prominent ; neck less than % the maximum width ; occiput deeply 

 vertical at base ; clypeal tooth strong, simple, triangular, not very acute. 

 Awtennse barely % as long as the body, somewhat gradually incrassate dis- 

 tally ; club only feebly differentiated ; three basal joints decreasing only very 

 slightly in thickness ; third feebly obconic, fully % longer than wide, much 

 shorter than the next two ; three and six %, four and five nearly ]4,i longer 

 than wide ; seventh but little thicker, % longer than wide ; last four joints 

 increasing very little in thickness, the ninth but slightly longer than vdde •,. 

 tenth on the compressed side rather wider than long ; eleventh almost as long 

 as the two preceding. Frothorax scarcely longer than wide, conic, the sides- 

 feebly arcuate ; apex rather more than % ^s wide as the base, the latter 

 scarcely more than 34 wider than the head. Elytra not }4 longer than wide, 

 fully twice as long as the prothorax and nearly twice as wide, regularly oval, 

 the sides evenly arcuate and widest only slightly before the middle ; apex 

 rather obtusely rounded ; humeral plica and subhumeral impression well de- 

 veloped ; fovese small and very feeble ; subsutural impressions distinct, the^ 

 suture very finely and feebly elevated basally. Abdornen, coarsely and moder- 

 ately densely fulvo-pubescent. Legs well developed ; femora strongly clavate, 

 the posterior tibiae broadly arcuate basally. Length 1.9 mm. ; width 0.8 mm.. 



Iowa (Iowa City). Mr. Wickham. 



The type above described is a female, and the male will proba- 

 bly prove to be more slender. Four specimens from Ohio, in 

 poor state of preservation, are associated for the present with 

 formale, but possibly represent a closely allied species, as the 

 elytra are brighter red and invariably become gradually black in 

 posterior third or fourth. This species is said to occur in ant- 

 nests, but the association is probably in part fortuitous. 



6. C. Simulans n. sp. — Moderately stout, highly polished and impunc- 

 tate, piceo-testaceous in color, the elytra bright red throughout ; under surface- 

 dark, paler at the tip of the abdomen ; legs and antennae rufous ; pubescence 

 long but only moderately close, pale, the anterior bristles darker and nume- 

 rous at the sides. Head moderate, semicircular behind the eyes, which are well 

 developed, convex and prominent ; clypeal tooth very stout and strong, 

 rounded at apex and with its upper surface tumid. Antennse scarcely more 

 than % as long as the body, the outer joints thick, increasing but slightly 

 among themselves and forming a tolerably well defined club; second joint feebly 



