418 Coleopterological Notices, V. 



oblique and unexposed humeri and nearly straight ; outer angles broadly 

 rounded ; apex truncate ; disk coarsely, not very densely and deeply punc- 

 tate, the punctures forming uneven series with feebly convex punctate inter- 

 vals. Abdomen very short and rapidly pointed behind the elytra, pale, shining 

 and subimpuuctate. Length 2.0 mm. ; width 1.2 mm. 



British Columbia (Stickeen River Canon). Mr. H. F. Wickhain. 



The single specimen from which the description is taken is a male, 

 and may possibly be immature. It is distinguishable at once by its 

 small size and very broadly concave and reflexed side margins of the 

 prothorax. 



L.. spretum n. sp. — Short, broad, polished, convex, piceous-black, the 

 side margins slightly paler from diaphaneity ; legs paler ; antennae black, 

 paler at base. Head two-thirds as wide as the prothorax, wider than long, 

 strongly, densely punctate toward base, the clypeus subimpuuctate ; ocelli 

 separated by one-third of the total width, the nuchal constriction almost 

 obsolete ; surface impressed near each ocellus and also obliquely at the sides 

 of the clypeus ; antennae but slightly longer than the head and prothorax, 

 slender, rather rapidly strongly incrassate near the tip, sixth joint one-half 

 longer than wide, the tenth transverse. Prothorax scarcely twice as wide as 

 long, the sides rather strongly rounded, convergent and nearly straight 

 toward base, widest before the middle ; basal angles obtuse but not rounded ; 

 base not distinctly wider than the apex ; disk strongly and closely but 

 scarcely rugosely punctate, explanate at the sides, the sublateral fovea before 

 the middle and near the edge ; median subbasal impressions strong, coales- 

 cent, forming a posteriorly angulate transverse channel. Elytra quadrate, 

 almost three times as long as the prothorax and nearly two-fifths wider ; sides 

 subparallel, nearly straight ; humeri distinctly exposed at base ; apex trun- 

 cate, the sutural angles not at all produced ; disk strongly punctate, the 

 punctures forming dense close and rather well-marked series with the inter- 

 vals feebly convex and finely remotely and subserially punctate. Abdomen 

 extremely short and broadly obtuse behind the elytra, black, subimpuuctate. 

 Length 2.2 mm. ; width 1.2 mm. 



California (Siskiyou Co.). 



The unique type is a female but cannot be confounded with re- 

 flexicoUe, as the numerous differences are not at all suggested in 

 the large series of males and females of subcostatum. which I have 

 before me. The present species differs from reflexicolle in the 

 very much more narrowly explanate sides of the pronotum, in the 

 less coarse and closer sculpture of the elytra, straight and not arcu- 

 ate sides of the prothorax tow^ard base, in the shorter antennae, and 

 in the distinctly exposed humeri ; in color, rugosity of the pronotum 

 and several other features there is also notable divergence. 



