4O2 MEMOIRS ON THE COLEOPTERA 



This species can be distinguished easily by its entirely deep black 

 coloration and broader, more fusoid form, besides the other char- 

 acters stated above. 



Quediellus n. gen. 



The somewhat numerous species of this genus are among the 

 smallest of the supergenus Quedius, to which the type was assigned 

 by Horn ; they have in fact no resemblance whatever to molochinus 

 and other typical representatives of the restricted Quedius, the 

 body being generally of fusiform outline and always of a pallid 

 yellowish-brown color throughout. The sculpture differs greatly 

 among the species, which, so far as known to me, may be briefly 

 outlined as follows: 



Elytral punctures sparse, those of the abdomen moderately fine and 

 close 2 



Elytral punctures very close, those of the abdomen extremely fine and 

 dense throughout 5 



2 Body more parallel; head only slightly narrower than the prothorax. 

 Body piceous-brown, the abdomen slightly darker, the head black- 

 ish; head rounded, fully as long as wide, the eyes (cf ) large, coming 

 within less than a third their length of the nuchal constriction; 

 infra-orbital carina extremely fine and feeble; prothorax rather 

 longer than wide, subparallel, arcuate at the sides and rounded at 

 base, with the usual anterior series of three punctures; scutellum 

 smooth; elytra not quite as long as wide, together broadly, angularly 

 emarginate at apex, at base only very slightly narrower than the 

 prothorax, at apex equal in width to the latter; punctures very fine, 

 sparse and somewhat unevenly distributed; abdomen slightly 

 tapering, finely, rather sparsely punctate, the punctures finer and 

 closer toward the bases of the basal segments; sixth ventral (c?) 

 with a broad feeble sinus; legs slender. Length (cf 9 ) 3.8-4.3 mm.; 

 width 0.8-1.0 mm. California (Siskiyou and Humboldt Cos.) and 

 Oregon (Lane Co.) nanulus n. sp. 



Body distinctly fusiform, the head much narrower than the prothorax. .3 



3 Abdomen subimpunctate at the middle of the segments, except toward 

 their bases; elytral punctures small and sparse but deep and very 

 distinct. Body larger and more fusoid than in nanulus, similar 

 in coloration; head rounded, smaller, the eyes subsimilar, large, 

 approaching the nuchal constriction by less than half their length; 

 antennae a little longer and less filiform, more incrassate distally and 

 more slender basally; prothorax larger, nearly as wide as long, 

 orbicular; elytra at base as wide as the prothorax and at apex a little 

 wider, somewhat longer than the prothorax, and not shorter as they 

 are in nanulus; abdomen distinctly tapering, the sixth ventral (cf) 

 with the notch larger and more than twice as deep as in nanulus, 



