Coleopterologiccd Notices. 65 



B. pai'Ticollis n. sp. — Very robust; head and prothorax much nar- 

 rower ; black throughout, legs pale flavate, the coxae and femora toward base 

 picescent ; antennae fuscous, paler toward base ; head and pronotum opaque, 

 extremely minutely and densely granulosa ; elytra and abdomen polished, the 

 latter reticulate, the lines very fine, the reticulations strongly transverse and 

 m^^ch smaller toward apex. Head rather distinctly narrower than the pro- 

 thorax, very finely, not distinctly punctate ; antennal prominences feeble, the 

 epistomal suture scarcely visible, not at all impressed ; vertex rather convex, 

 not tuberculate ; median fovea obsolete ; antennae rather long ; second joint 

 nearly one-half longer than the third, three to eight gradually decreasing in 

 length and increasing in width, the latter obtrapezoidal, one half wider than 

 long, ninth and tenth similar, slightly wider, but not shorter than the ninth, 

 the eleventh orbicular, scarcely longer than wide, the antennae viewed iTpon 

 the compressed side. Prothorax nearly one-third wider than long ; sides par- 

 allel and strongly arcuate, slightly convergent and straighter in basal third, 

 the basal angles very obtuse, not at all rounded and minutely though notice- 

 ably prominent, lateral entirely obliterated, apical obtuse but not perceptibly 

 rounded ; apex transverse ; base feebly arcuate ; basal and lateral beaded 

 margins distinct ; disk finely, densely and somewhat indistinctly punctate, the 

 median groove fine, impressed, obliterated near base and apex ; pubescence 

 rather dense, moderate in length and coarse but dark brownish in color and 

 scarcely visible. Eljtra large, quadrate, slightly dilated behind, where they 

 are nearly one-half wider than the prothorax, fully three-fourths longer than 

 the latter ; sides feebly arcuate toward apex ; humeri right, narrowly i-ounded ; 

 disk finely, rather deeply and very densely punctate, the punctures separated 

 by from one and one-half to two times their own diameters ; pubescence fine, 

 short, dense, silvery and rather conspicuous. Abdomen slightly narrower than 

 the elytra, fully one-third wider than the prothorax, finely, sparsely punctate ; 

 punctures denser along the apices of the segments ; under surface densely, 

 strongly punctate, densely pubescent. Length 4.5 mm. 



California (Mendocino Co.). 



The hypomera are not impressed along the lateral edges; they 

 are one-half as wide as the distance thence to the coxae ; the coxal 

 fissures are very long and widely open. The mentum is large and 

 perfectly flat, finely, densely granulose and dull, the hypoglottis 

 apparently rudimentary. The prosternal sutures are distinct. 



The elytra are sometimes pale, indefinitely clouded toward the 

 suture. Two specimens are decidedly more slender. This is a very 

 distinct species, to be placed near diagonalis ; the latter resembles 

 it greatly in form, but has the surface of the head and pronotum 

 much more shining, and the basal angles of the prothorax obtuse, 

 narrowly but distinctly rounded, and not at all prominent. From 

 longipennis it diff"ers in its denser pronotal punctuation ; this part 

 in that species is, according to Mannerheim, " parce punctato." 

 Anxals N. Y. Acad. Sci., Dec. 1889.— 5 



