550 Goleopterological Notices^ VI. 



culiform i^art of the base, the apical angles Avidelj' rounded; disk finely, not 

 very densely punctate, opacjue and scabrous in lateral foiirth; interspaces 

 coarsely, sparsely and feebly indented. Elytra three-fourths longer than wide, 

 slightly Avider than the prothorax, parallel, parabolic in apical third, the 

 humeri obtiisely prominent; piinctures rather tine and sparse. Lef/s moder- 

 ately long, the hind tarsi slender, only slightly shorter tlian the tibiae. 

 Length 3.1-3.7 mm.; width 1.1-1.3 mm. 



California (Xapa and Sonoma Cos.). 



The punctures of the head and pronotum are much more shal- 

 low than usual. A specimen before me, assumed to be the male 

 of the above-described female, has the head relative!}' only 

 slightl}' larger and the eyes only a little more pi'ominent, the 

 fifth ventral much shorter, with its tip truncate, feebly deflexed 

 and with a broadl\' obtuse median cusp, the surface with a small 

 deep rounded fovea at the middle but without erect hairs, the 

 genital segment not visible, but with the under surface of the 

 dorsal pygidium largeh^ exposed behind. 



The male modification of the fifth segment is similar to that 

 indicated by LeConte for his difficilis (Proc. Acad., 1866, p. 

 358), but several species were included by the author under that 

 name, and the male of the true difficilis has no such medial 

 fovea, as can be proved b}' a large series taken by the writer in 

 the vicinity of San Jose. 



10. L.. iiiacillOKUJii n. sp. — Elongate, parallel, narrow and convex, pol- 

 ished, with a vfrv faint bluish-metallic lustre; pubescence short, rather 

 abundant and persistent, denuded in large isolated spots on the elytra, these 

 spots not forming fascite posteriorly. Head rather more than three-fourtlis as 

 Avide as the prothorax, the eyes prominent, distant from the base by nearly one- 

 half of their length; punctures tine but deep, rather sparse, the frontal im- 

 pressions wide and moderate; antennte long, almost equalling the head and 

 prothorax, lilack, with the second joint scarcely paler, the tenth perceptibly 

 longer than wide, eleventh oval. Prothorax scarcely one-half wider than long, 

 Avidest and evenly rounded at basal third, the sides thence rather strongly con- 

 vergent and nearly straight to the apex, the latter arcuato-truncate and not 

 quite as Avide as the head ; disk finely but deeply, not very densely perforato- 

 punctate, rugose in much less than lateral fourth; interspaces sparsely and 

 feebly variolate or indented. Scutellum moderate in size, albido-pubescent. 

 Elijtra twice as long as Avide, not evidently Avider than the prothorax, parallel, 

 rather obtusely parai)olic in about apical fourth ; humeri rounded, scarcely at 

 all tumid; punctures moderate in size, rather feeble and close-set. Legs black, 

 moderately long and slender. Length 3.25 mm. ; Avidth 1.1 mm. 



California (San Francisco). Mr. Dunn. 



