198 MEMOIRS ON THE COLEOPTERA 



Pyrotrichus cribripennis n. sp. Elongate, moderately convex, dull in 

 lustre, black, with pubescence throughout as in vitticollis; head quadrate, 

 the eyes finely faceted, the emargination extending more than half way 

 through them, the antennse ( 9 ) extending barely beyond the middle of 

 the body, the tempora straight and parallel, nearly as prominent as the 

 eyes, the basal angles right and sharply marked; prothorax much wider 

 than long, the lateral prominences slightly behind the middle and obtusely 

 angulate, more rounded anteriorly than posteriorly; apex much narrower 

 than the base, the latter broadly, feebly bisinuate; surface convex, rather 

 uneven, closely punctate, a large rounded elevation at each side of the 

 striiform median line shallowly concave, the inner part of its anterior 

 slope impunctate; scutellum very densely fulvo-pubescent; elytra nearly 

 a third wider than the prothorax, two and three-fourths times as long as 

 wide, rectilinearly parallel, gently narrowing arcuately in about apical 

 fourth to the transverse apices, the outer angles broadly rounded, the 

 sutural rather acute but not prolonged; surface even, with coarse per- 

 forate punctures, separated by rather less than half their diameters, 

 each with a very short silvery hair decumbent within it near the bottom; 

 under surface finely, densely punctate and with moderately close cine- 

 reous decumbent hairs, becoming coarser and very dense on the sterna 

 and throughout the meso- and metasternal parapleura; legs slender, the 

 basal joint of the hind tarsi two-thirds as long as the remainder, the second 

 obtriangular, slightly elongate, their under surface with short and not 

 very dense pubescence. Length 15.0 mm.; width 4.2 mm. California 

 (Los Angeles Co.). 



The single female in my collection differs from the female of 

 vitticollis in its much larger size, in having the fifth antennal joint 

 evidently shorter than the two preceding combined and not equal 

 thereto, in having less prominent eyes or much less retracted tem- 

 pora, with the basal angles more nearly right, in the wholly deep 

 black abdomen, this being strongly rufescent in both sexes of 

 vitticollis and in the longer and thicker tarsi. 



Thesalia Csy. 



The type of this genus was announced by the writer under the 

 name Acm&ops lisa Leng, the single example at hand seeming to 

 belong to that species, but more careful perusal of the description 

 oilisa, shows beyond doubt that the type is not lisa and the present 

 opportunity is therefore taken to make it known under a different 

 name as follows: 



Thesalia rubriceps n. sp. Slender, moderately convex, shining, black, 

 the entire head and basal joint of the antennae pale testaceous, the legs 

 piceous-black, the anterior testaceous excepting the black tarsi; body 

 barely at all pubescent; head moderate, wider than long, with very prom- 



