Sept., 1912.] Matheson : Haliplid^ of North America. 165 



of the same color as elytra; intervals with fairly well defined rows of small 

 punctures ; margin of elytra not sinuate before the apex, denticulate. 



Habitat. — Canada (Nova Scotia) ; Mass. (Amherst) ; New York 

 (Ithaca); Michigan (Lansing); Illinois (Lake Forest). 



Type. — In the entomological collection of Cornell University, 

 Ithaca, N. Y. 



Haliplua longulus Leconte. 



Haliplus longulus Leconte. Lake Superior, Agassiz and Cabot, Note 31, 



1852, p. 211. 



General color rufous to pale yellow with black markings on elytra, these 

 markings indistinct or sometimes wanting. 



Head punctate ; eyes oval ; labrum slightly emarginate, rounded at the 

 sides, a row of small setae on the anterior margin. 



Pronotum punctate, the disc sparsely so, punctures of the same color as 

 the pronotum ; paired basal impressions present, exceeding one third the 

 length of the pronotum. Prosternal ridge not grooved, or only slightly so in 

 front, punctate, sharply declivous in front. Abdominal segments shining, 

 smooth, each except the last with an indefinite row of small punctures near 

 the apex ; last segment triangular in outline, punctate. Legs rufous ; posterior 

 coxae punctate, reaching the fourth segment of abdomen. 



Elytra rufous to almost pale yellow with the black markings indistinct or 

 sometimes wanting. Each elytron with ten rows of punctures, the outer two 

 rows usually the same color as elytra, the others black ; intervals with a few 

 scattered, black punctures, sometimes arranged in fairly definite rows ; apical 

 margins of elytra rounded. 



Re-described from specimens which were compared with the type 

 of Leconte. 



Habitat. — Canada (Nova Scotia) ; Mass. (Cambridge) ; New York 

 (Pike, Kerner, Ithaca) ; Indiana (Pine, Lake Co., Broad Ripple, 

 Marion Co., Blatchley, 1910) ; Mich.; Wis. (Three Lakes, Dane Co., 

 W. S. Marshall) ; Isle Royale (Lake Superior, H. F. Wickham) ; 

 Colorado; Cal. (Areata, Humboldt Co., E. C. Van Dyke). 



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



Halipltis fasciatus Aube. 



Haliplus fasciatus Aube. Species des Col., VI, 1838, p. 30. 



General color rufous to pale yellow with black spots and margins on 

 elytra. Length 4-4.5 mm. 



Head punctate except a small area on vertex ; eyes nearly circular in 

 outline ; labrum slightly emarginate, rounded at the sides, a row of setae on 

 its anterior margin ; antennae rufous. 



Thorax rufous to pale yellow ; pronotum strongly punctate except a 



