COLEOPTEKA. 139 



border strong and nearly equal throughout the first four segments, fifth as 

 long as the two preceding together, sixth mucli shorter ; under surface much 

 paler toward tip. Legs slender ; femora slender, very feebly swollen ; first 

 four joints of the posterior tarsi very short, cylindrical, decreasing very 

 gradually but distinctly in length. Abdomen beneath very slightly paler 

 toward tip. 



Male. — Fifth ventral segment abruptly produced in the middle fourth at 

 apex into a very short wide process which is broadly arcuate behind, with its 

 surface slightly reflexed and impressed in the middle, the impression extend- 

 ing anteriorly for a short distance along tlie segment ; sixth segment deeply 

 emarginate at apex, notch slightly deeper than wide, taking the entire apex, 

 bottom acutely rounded, sides sinuate, apical angles slightly produced in- 

 wardly, more broadly rounding externally and thence anteriorly along the 

 sides of the segment, apices very narrow ; middle process of seventh segment 

 very narrow, flat, sides parallel and straight, truncate at tip. 



Female. — Unknown. 



Length 3.0 mm. 



California, 1. 



A very singular species, not only from its resemblance in sculpture 

 to Latlirobium, but because of its sexual characters. 



STILICUS Latr. 



S. latillSCIllllS n. sp. — Form rather robust, depressed ; sides parallel. 

 Pubescence of head and pronotum excessively fine and sparse, scarcely visi- 

 ble ; that of the elytra much coarser, rather sparse, pale, not conspicuous ; 

 that of abdomen much finer, more dense and recumbent toward tip. Color 

 throughout deep black ; elytra slightly aeneous, pale testaceous along the 

 apical edge, more widely so toward the apical angles ; legs pale brownish- 

 rufous ; anterior coxae much darker, castaneous ; antennae dark reddish- 

 fuscous. Head large, very slightly longer than wide ; sides behind the eyes 

 strongly convergent, moderately arcuate ; posterior angles broadly rounded ; 

 base above truncate at the neck, beneath strongly emarginate in the middle, 

 emargination in the form of an acute cusp ; eyes large, rather prominent ; 

 genae from the eye to the neck equal in length to the former ; interocular 

 surface very moderately convex, coarsely variolately and extremely densely 

 punctate, punctures elongated, and, toward the sides, semi-coalescent ; in the 

 middle in a very small elongated area they are isolated and comparatively 

 sparse ; supra-antennal tuberculations small and prominent ; epistoma trans- 

 versely truncate anteriorly ; labrum broadly arcuate, rounded at the sides, 

 teeth very small, short and robust ; antennae but slightly longer than the 

 head, very slender, very feebly incrassate toward tip, basal joint slender, 

 slightly longer than the next two together, second much shorter and slightly 

 more robust than the third, fourth as long as the second, more slender than 

 the third, two-thirds longer than wide, tenth slightly wider than long, 

 eleventh conoidal, finely acuminate ; under surface strongly and roundly 

 declivous behind and toward the emargination, nearly fiat between the 

 eyes, coarsely and very densely punctate, punctures generally not coales- 



