168 Journal New York Entomological Society. [Vol. xx. 



Haliplus borealis Leconte. 



Haliplus borealis Leconte. Lake Superior, Agassiz and Cabot, 1850, p. 212. 



General color pale yellow to rufous with black markings on elytra. 

 Length 2.5—3 mm. 



Llead punctate, infuscate to black on vertex ; labrum rounded at the 

 sides, slightly emarginate, a row of small sets on the anterior margin ; 

 antennas pale yellow. 



Pronotum without basal impressions, pvmctate except on the disc, the 

 basal punctures largest. Prosternal ridge margined, convex longitudinally 

 and laterally, punctate. Abdominal segments smooth and shining, punctate 

 along their posterior margins. Posterior coxje punctate, rounded posteriorly, 

 reaching the fourth segment of the abdomen. 



Each elytron with ten rows of black punctures, the intervals with but 

 few small, scattered punctures. Apices of elytra strongly sinuate. This 

 latter character is probably the most specific and easily used for identification. 



Habitat. — Lake Superior (Leconte) ; Indiana (Laporte Co., 

 Blatchley) ; Iowa (Iowa City, H. F. Wickham) ; Wis. (Dane Co., 

 W. S. Marshall). 



Type. — In the Museum of Comparative Zoology, Cambridge, Mass. 

 Haliplus vancouverensis, new species. 



General color bright rufous. Length 4.5 mm. Head and antennae bright 

 rufous; head punctate; labrum strongly emarginate, rounded at the sides, a 

 row of small setae on its anterior margin. 



Pronotum punctate, the punctures larger on the posterior portion, few and 

 scattered on the disc. Prosternal ridge not margined, flat, strongly punctate, 

 sharply declivous in front. Legs rufous ; posterior coxae rounded behind, 

 punctate, reaching the fourth segment of the abdomen. Abdominal segments 

 shining, punctate along their posterior margins. 



Elytra with ten rows of punctures of slightly darker color than elytra, 

 the intervals with few small punctures ; elytral margins faintly sinuate before 

 the tip. 



Described from one specimen from Vancouver Island, B. C. 

 Type. — In the collection of Professor H. F. Wickham, Iowa City, 

 Iowa. 



Haliplus mimeticus, sp. nov. 



General color rufous. Length 3.5 mm. 



Head strongly and densely punctate except a small area on vertex ; 

 labrum emarginate, rounded at the sides. 



Pronotum densely and strongly punctate, not so strongly on the disc ; a 

 semicircular depression across the disc, the hind margin convex posteriorly. 

 Prosternal ridge strongly margined, densely punctate, convex longitudinally 

 and laterally, the anterior margin squarely truncate and sharply declivous. 



