THE CANADIAN ENTOMOLOGIST 167 



Hetaerius strenuus, n. sp. 



This name is proposed for a form similar in all general features 

 to tristrialus but larger and more densely punctate throughout. 

 In tristriatus the head, presternum posteriorly, legs and pygidium 

 are sparsely, finely punctate. In strenuus these parts are all rather 

 densely, more strongly punctate. Length 3 mm.; width 2 mm. 

 In tristriatus the length is 2.5 mm. 



The type bears label — Santa Cruz Mts., California, April 17, 

 1900. It occurs with a black Formica with dark, rufo-piceous legs. 

 A second precisely similar specimen has been taken at Pasadena 

 by Mr. J. O. Martin — March 31, 1916 — in whose collection it now 

 is. It, together with one or more examples of H. californicus 

 Avere found under the same stone in nest of what I believe to be 

 Forpiica pilicornis. 



H. loripes Csy. The description recently published agrees so 

 perfectly in all respects except the punctuation of the head with 

 tristriatus, that it is difficult to believe it can be really distinct from 

 the latter, more especially since it comes from the region inhabited 

 by tristriatus. 



H. exiguus Mann. I have a specimen of this species collected 

 by Dr. Fenyes, at Porvenir, New Mexico. As Mann's specimens 

 were all taken at Pullman, Washington, I had supposed my New 

 Mexico specimen to be something new until I made careful com- 

 parison with a paratype of exiguus kindly given me by Mr. Mann. 



H. minimus Fall. This little species — described from Colorado 

 — also occurs in New Mexico. It has been taken at " Lower Pecos " 

 by Dr. Fenyes. 



SAPRINUS. 



Saprinus carinifer, n. sp. 



Broadly oval, black, legs dark rufous, upper surface minutely 

 alutaceous and dull throughout. Head finely rugulose. Pro- 

 thorax twice as wide as long, sides strongly convergent and nearly 

 straight to apical third; surface very sparsely, minutely, nearly 

 evenly punctate, the sides longitudinally rugulose in about the 

 lateral fourth, side margins fimbriate with very short hairs. Elytra 

 across the humeri one-fifth wider than the sutural length, punctu- 

 ation baso-medially similar to that of the prothorax, the punctures 

 becoming only slightly larger and closer toward the sides, but 



