Sept.-Dcc, igis.j Van Dyke : New Cave-Dwelling Carabid/E. 179 



Explanation of Plate IX. 



Outline, slightly diagrammatic, drawings of male prothorax of the species 

 of Silis in America, north of Mexico. 



A NEW GENUS AND SPECIES OF CAVE-DWELLING 



CARABIDiE (COLEOPTERA) FROM THE 



UNITED STATES. 



By Edwin C. Van Dyke. 

 Berkeley, Cal. 



While working over the collection of Coleoptera belonging to the 

 department of entomology, Cornell University, this last year, I found 

 among the unassigned material, a very peculiar Carabid which I 

 immediately recognized as something entirely new. This through 

 the courtesy of the department and the discoverer I am permitted to 

 describe. The beeitle was kindly figured for me by Mr. C. H. 

 Kennedy. 



Comstockia, new genus. 

 Elongate, slender. Antennte slender, very long, three basal joints 

 glabrous, first joint stout, second narrow and but two thirds length 

 of first, third three times length of second, fourth to eleventh grad- 

 ually shorter and fifth to eleventh increasingly stouter. Head elon- 

 gate elliptical, much prolonged posteriorly and narrowed to a distinct 



