COLEOPTERA OF BAJA CALIFORNIA. 235 



EuMicRUS LUC ANUS n. sp. 



Reddish brown, sparsely clothed with paler, semi-erect 

 hair, Antennge slender longer than half the body, fifth 

 joint as long as the preceding two and slightly longer 

 than the two following. Head shining, very minutely 

 sparsely punctate. Thorax longer than wide, apex nar- 

 rower than base, sides regularly arcuate, widest one-third 

 from apex, disc convex, sparsely and minutely punctu- 

 late, at base moderately quadrifoveolate. Elytra not 

 wider at base than the thorax, a slight depression within 

 the humeri, widest at middle, disc convex, surface indis- 

 tinctly punctulate. Tarsi slender, longer than half the 

 tibise. Length, .06 inch; 1.5 mm. 



The male has the anterior tarsi slightly dilated. 



This species is evidently allied to com?Hilito?i?s, as de- 

 scribed and figured by Dr. Sharp (Biol. 11, pt. i, p. 67, 

 pi. 2, fig. 22), but is of more elongate form and with 

 more slender antennae. 



One specimen. San Jose del Cabo, with which I as- 

 sociate two from Arizona in my cabinet. 



There are now six species of this genus known in our 

 faunal limits — grossus, Motschulskii, vestalis, Caseyi, luca- 

 nus and Zimmermanni. The latter species has for a 

 synonym punctatzis Casey. The genus Cholerus has, in 

 Mexico, half more species than Eumicrus, but none are 

 yet known to me from our fauna. E. Caseyi Brend., 

 which is unknown to me, is remarkable in its polished 

 surface. 



PiESTUs EXTiMus Sharp (Biol, i, pt. 2, p. 713). 



Through the kindness of Mr. Ricksecker I have a spec- 

 imen which I refer to this species, collected in Arizona. 

 The type is from Chihuahua. P. erythro-pus Er. is said 

 by Fauvel (Bull. Soc. Linn., Norm., ix, p. 29) to have 

 occurred at Opelousas. 



