132 MEMOIRS ON THE COLEOPTERA 



slightly less prominent, the sulci finer; antennae blackish, gradually 

 testaceous basally, three-fourths as long as the elytra, with the 

 medial joints not quite twice as long as wide; prothorax nearly as 

 in decipiens, but with the parallel basal parts of the sides shorter, 

 the sides less strongly rounded anteriorly than in either of the two 

 preceding; foveae deep, rather close to the short carina; elytra three- 

 fifths longer than wide, two-fifths wider than the prothorax, parallel, 

 with broadly arcuate sides, the striae fine, feebly impressed and finely 

 punctate; pale maculae forming a slender subhumeral ring open 

 internally, also a narrow oblique fascia near apical third, extending 

 to inner third, the tip not pale. Length (9 ) 2.65 mm.; width 0.85 

 mm. New York (Long Island), Shoemaker. . . . rotundiceps n. sp. 



Body a little larger, stout, convex, on the whole less shining but with 

 similar style of coloration; head not greatly developed, though fully 

 three-fourths as wide as the prothorax, the eyes notably smaller, 

 only moderately prominent; antennae thicker, black, the basal joint 

 very obscurely rufous, the obconic medial joints barely one-half 

 longer than wide; prothorax fully two-fifths wider than long, having 

 still less strongly rounded sides and broader base, this being nearly 

 four-fifths the maximum width, the parallel part at the base not 

 quite a fifth the total length; foveae very moderate, deep, the carina 

 short and fine; elytra rather long, oblong-suboval, the striae fine, 

 unimpressed, with the very moderate punctures well separated; foveae 

 before basal and near apical third; hind tarsi rather short, three- 

 fourths as long as the tibiae. Length (cf 9 ) 2.9-3.2 mm.; width 

 1.1-1.25 mm. British Columbia (Metlakatla), Keen. 



tolerans n. sp. 



79 Form moderately stout, the body small in size, convex, polished 

 throughout, deep black, without pronounced metallic lustre; elytra 

 black, the anterior half, in about external half of each, tawny rufous, 

 this area approaching the suture more closely at two-fifths; near 

 posterior third there is an external pale oblique fascia, extending to 

 the third stria, the apex also pale; under surface black, the inflexed 

 sides and legs blackish-piceous; head rather more than three-fourths 

 as wide as the prothorax, the eyes moderate in size and prominence; 

 antennae rather long, heavy, blackish, four-fifths as long as the ely- 

 tra, the medial joints obconic, one-half longer than wide; prothorax 

 two-fifths wider than long; base three-fifths the maximum width, the 

 sides strongly, subevenly rounded to the short basal parallel part; 

 foveae deep, sublinear, the carina feeble; elytra rather short, barely 

 one-half longer than wide, scarcely more than two-fifths wider than 

 the prothorax, parallel and with rapidly rounded humeri as usual, 

 somewhat obtusely ogival behind; striae rather fine, very feebly im- 

 pressed, the punctures moderately coarse, deep and distinct, rather 

 well separated; foveae as usual. Length (cf) 2.6 mm.; width 0.9 

 mm. New Mexico (Jemez Springs), Woodgate. Three examples, 

 one of which is probably a female egens n. sp. 



Form narrower and more parallel, small, convex, polished, piceous-black, 

 the femora piceous; elytra with paler maculation as in egens, except 

 that the apex is not pale; head four-fifths as wide as the prothorax, 



