Coleopterological Notices. 481 



California (southern). 



This is the largest species of the genus, and is quite distinct in 

 its extremely fine, sparse and transverse pronotal punctures, more 

 prominent basal angles of the head and several other characters ; the 

 sides of the prothorax occasionally become more strongly arcuate. 



]V. pillicticollis Lee. — Ann. Lye. N. Y., V, p. 145. — Oblong, rather 

 strongly convex, dark rnfo- ferruginous, the elytra blaek ; moderately shining ; 

 pubescence fine, recumbent, moderate in length, dark and sparse. Head 

 transverse, rather finely, somewhat densely and asperately punctate; sides 

 near the base parallel and almost straight ; epistoma very broadly bilobed ; 

 upper lobe of eyes very small, elongate ; antennje much shorter than the head 

 and prothorax, rather robust, compact, the outer joints but feebly dilated, third 

 joint pyriform, but very slightly longer than wide and conspicuously shorter 

 than the next two which are equal, eleventh small. ProMo)a.r distinctly less 

 than one-half wider than the head, about one-half wider than long ; apex 

 narrower than the base, broadly truncate between the slightly advanced 

 and broadly rounded apical angles, which are moderate in width ; base very 

 broadly, feebly arcuate in the middle, broadly and strongly sinuate laterally, 

 the basal angles acute, not rounded and distinctly prominent posteriorly ; 

 sides subparallel, feebly arcuate ; disk rather coarsely, strongly punctate, the 

 punctures rather dense throughout but closer and more asperate laterally, 

 almost rounded and scarcely asperate toward the middle. Elytra very little 

 wider than the prothorax and distinctly more than twice as long ; sides feebly, 

 evenly arcuate ; disk with fine, obsoletely impressed rows of very fine, rather 

 distant punctures, the punctures of the intervals similar but slightly more 

 asperate, rather sparse but not much more distant than those of the series, so 

 that the latter are observable with difiiculty. Abdomen finely, sparsely, aspe- 

 rately punctate. 



Male. — Withoiit distinct sexual characters. 



Length 4.7-5.0 mm. ; width 2.1-2.4 mm. 



California (Sacramento Yalley and El Dorado Co.). 



The size and form of the third antennal joint and coloration of 

 the body will be amply sufficient to distinguish this species, which 

 is more northern in habitat than the others. 



CYBOTUS n. gen. 



o^ 



Mentum moderate, nearly flat, deeply and roughly sculptured, but slightly 

 wider than long, strongly trapezoidal anteriorly, the apex narrowly and feebly 

 sinuate ; ligula very short, sinuate in the middle, the connate paraglossje fur- 

 nished with very robust bright yellow bristles, the labial palpi attached at the 

 sides under the apical portions of the mentum ; fourth joint of the maxillary 

 palpi robust, oval, the apex broadly truncate and having a conspicuous exten- 

 sible white membrane ; epistoma deeply sinuate. Prosternum widely separat- 



