H4 MEMOIRS ON THE COLEOPTERA 



tending slightly behind the middle, the eighth extremely close to 

 the margin as usual in this section; foveae small, near basal fourth 

 and apical third. Length (9) 2.7 mm.; width i.o mm. Nevada 

 (Reno) parabile n. sp. 



Body as in the preceding but still smaller and narrower, polished, black, 

 the legs piceous, the femora in great part blackish; head similar; 

 antennae still shorter and somewhat thicker, the medial joints evi- 

 dently less than twice as long as wide; palpi similarly black; prothorax 

 less transverse, a third wider than long, widest nearer apical third, 

 the sides strongly, more evenly rounded anteriorly, not so strongly 

 converging to the parallel basal part; surface similar; elytra not over 

 one-half longer than wide, fully one-half wider than the prothorax, 

 more gradually ogival behind, the parallel sides feebly arcuate; 

 striae similar but finer, less impressed and with the somewhat smaller 

 punctures more widely separated; foveae similarly placed but smaller. 

 Length (c? 9 ) 2.4-2.6 mm.; width 0.8-0.9 mm - Utah (Provo), 

 \Vickham diligens n. sp. 



48 Prothorax widest near apical third, the sides subevenly and strongly 

 rounded anteriorly, becoming oblique in fully basal half, subparallel 

 and straight in basal sixth. Body deep black, with very shining 

 cupreo-aeneous lustre above; legs piceous-black, the coxae and tro- 

 chanters piceo-rufous; head scarcely three-fourths as wide as the 

 prothorax, as wide as an elytron, the sulci short, narrow and deep; 

 eyes moderately prominent; palpi black; antennae black, longer than 

 in the preceding two species, very nearly as long as the elytra, the 

 medial joints somewhat more than twice as long as wide; prothorax 

 nearly one-half wider than long; base barely visibly narrower than 

 the apex, both transverse; impressions extremely feeble, the stria 

 very fine, slightly biabbreviated; foveae nearly smooth, broader than 

 in the two preceding, deep and adjoining the distinct carina; elytra 

 oblong-oval, more than one-half longer than wide, only two-fifths 

 wider than the prothorax, the sides parallel, distinctly arcuate; 

 striae fine, obsolete behind about the middle, not evidently impressed, 

 the punctures very fine and widely separated even suturally; foveae 

 fine, near two and four sevenths; seventh stria only visible in basal 

 third. Length (cf) 3.2 mm. ; width 1.2 mm. Idaho (Cceur d'Alene), 

 Wickham aleneanum n. sp. 



Prothorax widest only slightly before the middle, the sides broadly, sub- 

 evenly rounded from apex to the short subparallel basal part. . . .49 



49 Prothorax relatively larger, its widest part about as wide as the ely- 

 tral base. Form not very broad, convex, black and polished, with 

 faint aeneous lustre above, the legs pale piceo-rufous throughout; 

 head moderate, with large though only moderately prominent eyes, 

 the sulci somewhat short and narrow; antennae black, rather heavy, 

 though almost as long as the elytra, the medial joints obconic and 

 distinctly more than twice as long as wide; prothorax large, one- 

 half wider than long, evidently narrower at base than apex, the 

 sides strongly rounded, subparallel for only a short distance before 

 the basal angles; anterior impression obsolete, the subbasal evident, 

 the stria very fine; foveae small, deep, linear, isolated from the dis- 



