THli CANADIAN ENTOMOLOGIST 213 



meiits testaceous; mesocoxal and cpipleiiral lines present; stridulating ridge 

 of first ventral entire. 



Length 2.2-2.4 mm. 



The type bears label "Aweme, Man. 3-IX-1917, M. Criddle." Other 

 examples from Mr. Criddle and Mr. Wallis from same locality bear date 15-VII. 



This very small species resembles considerably in miniature auromicans, 

 but aside from the size differs in its somewhat finer pubescence and in the charac- 

 ter of the elytral punctuation. In auromicans the elytral punctures are sensibly 

 equal in size throughout and finer than the coarser punctures of moleculus. 

 The pale elytral markings in moleculus are usually broader and more confluent, 

 such that frequently they might better be described as testaceous, with base 

 and some detached spots piceous. 



H. canadensis, sp. nov. 



Similar to the preceding species, except as follows: Size larger, length 3.3 

 mm., colour piceous except for two narrow sinuous elytral fascial and small 

 subapical spot; the propleura and sides of ventral segments obscurely paler; 

 legs entirely dark; pubescence longer, the recurved hairs of the elytra mixed 

 abundantly throughout with short erect hairs ; margins of prothorax and elytra 

 distinctly fimbriate. The very fine interstitial punctures of the elytra are 

 fewer and less evident and the larger punctures more conspicuous than in 

 moleculus. 



Described from a single female specimen taken at Thornhill, Manitoba, 

 I-YH-16 by Mr. J. B. Wallis. Type in my collection. 



The four species of the subgenus Littorimus now known to me may be easily 

 separated by the following table: 



Colour pale testaceous without markings; middle coxae separated by a 

 distance subequal in width to that of the coxa; base of thorax not margined at 

 sides; epipleurse without obliqufe raised line at base; length 



2.3-2.9 mm mundulus. 



Colour piceous; elytra fasciate; middle coxse separated by a distance dis- 

 tinctly greater than the width of the coxa; base of thorax very distinctly 

 margined at sides; epipleural line present. 



Margins of body distinctly fimbriate with longer hairs; elytra with 

 abundant intermixed short erect hairs; legs dark; length 



3.3 mm canadensis. 



Margins of body not fringed with notably longer hairs; elytral pubescence 



recurved or recumbent; legs entirely or in great part pale. 



Size very small (about 2.3 mm.) elytral punctuation dmX. moleculus. 



Size much larger (3. to 4. mm.) elytral punctures nearly uniform in 



size auromicans. 



Oligomerodes Fall. 



O. delicatulus,, sp. nov. 



Form narrow, cylindrical, body piceous, clothed with short ashy appressed 



pubescence, legs and antennae brown. Antennae (cT) very slender, nearly as 



long as the entire body, first joint relatively stout, arcuately subcylindrical, 



about twice as long as wide, joint 2 obconic, half as long as the first, 3-8 narrower 



