ROLAND HAYWARD. 199 



From falli it may be recognized by its more elongate and more 

 depressed form, proportionally longer thorax, which is not wider at 

 base than apex, and by the narrower, more parallel elytra, which 

 are less distinctly striate I have been unable to detect in munis 

 the irregular row of sparsely placed, minute, setigerous punctures 

 which occurs on each of the elytral intervals in falli. 



It has a very wide range of distribution, occurring over almost the 

 entire country from the Atlantic to the Pacific, in Canada, and 

 also in Europe and Siberia. It is most frequently met with under 

 bark, and is also found in sifting leaves. 



3. T. f si 1 1 i n. sp. — Less elongate than nanus, slightly convex. Color black, 

 shining, the elytra sometimes piceous. Surface finely alutaceous. Head as wide 

 as the thorax at apex ; frontal grooves distinct, extending posteriorly behind the 

 middle of the eye; eyes moderately large and prominent; antenna} less than 

 one-half the length of the body, piceous, the basal joints scarcely paler; palpi 

 piceous. Prothorax subquad rate, wider at base than apex, nearly twice as wide 

 as long; apex slightly emarginate; anterior transverse impression feeble, the 

 posterior distinct; median line moderately deep, abbreviated at each end ; basal 

 impressions large and deep ; base truncate ; sides slightly arcuate in front, feebly 

 sinuate behind ; hind angles rectangular, earinate. Elytra distinctly wider than 

 the thorax, oblong-oval, distinctly striate; striae impunctate, the sutural entire, 

 the others extending nearly to apex, the seventh feeble or obsolete; dorsal punc- 

 tures small, placed as in nanus ; intervals slightly convex, each with an irregular 

 row of very small, setigerous punctures. Body beneath black, shining. Legs 

 piceous, sometimes tinged with rufous. Length .10 . 12 inch; 2.5-3 mm. 



More robust than the preceding, with the thorax broader as com- 

 pared with its length and wider at base than apex. The hind 

 angles are distinctly earinate. The elytra differ in being more 

 deeply striate and in their more oval form and greater width as 

 compared with the thorax. 



As mentioned in the description, in addition to the usual two 

 dorsal punctures, which are placed almost exactly as in nanus, there 

 is an irregular row of very minute, sparsely placed punctures on 

 each interval, each bearing a very short seta. This recalls a similar 

 structure in the next group, in which, however, the true dorsal 

 punctures are differently placed. 



1 take great pleasure in dedicating this species to my friend, Mr. 

 H. C. Fall, of Pasadena, Cal., to whom I am under obligations for 

 many favors. 



More than twenty examples have been studied, both sexes being 

 represented in the material before me. . 



It occurs in the Pacific coast region, being known to me from 



TRANS. AM. ENT. SOC. XXVI. JANUARY, 1900. 



