588 Goleopterological Notices, VI. 



thorax, the frontal impressions rather small and feeble; eA^es 

 prominent ; antennte but slightly longer than the prothorax, 

 slender, the fifth joint noticeabl}- dilated. Prothorax not quite as 

 long as wide, the sides parallel and broadly rounded, deeply con- 

 stricted behind the apical angles which are laterally prominent ; 

 basal angles obtuse but not rounded, not at all prominent. Elj^tra 

 quite distinctly wider than the prothorax, twice as long as wide 

 in the male, relatively shorter and more dilated behind in the 

 female. Length 2.2-3.4 mm.; width 0.1-1.15 mm. 



Coast regions of California from Humboldt to San Diego. 

 This abundant species seems to be resolvable into two or three 

 closely allied forms, but it woiild scarcely be worth while to un- 

 dertake the definition of them without ver}- full series from care- 

 full}^ recorded localities. One form from San Diego is certainl}^ 

 distinct in its much more feeble thoracic constriction, denser 

 pubescence and acute elytral apices ; another from Sta. Barbara 

 is more elongate in the body and more densely pubescent than 

 the typical forms, in which the elj^tral pubescence is relatively 

 sparse, dark and inconspicuous. 



In the male the fifth ventral has a transverse and rectangular 

 apical emargination, with the adjacent surface slightly declivous, 

 and I can perceive little or no variation in this sexual character 

 in the various allied forms alluded to above. 



ALLONYX Lee. 



The parallel form of the body and structure of the epipleurae 

 will readily distinguish the representatives of this genus from the 

 allied forms with similar asymmetric ungual appendages. The 

 epipleurtv are wide, flat and subhorizontal throughout, preserving 

 their width almost unaltered to within a short distance of the 

 apex and there terminating somewhat abruptl}' ; their surface is 

 finely punctured and pubescent, and the side margins of the elytra 

 are correspondingly reflexed. The antennae are rather short, 

 feebly incrassate and are scarcely at all serrate, the eyes large and 

 basal, the anterior tibiae devoid of spinules, the. maxillar}' palpi 

 somewhat stout and pale in color, and the vestiture very feebl}' 

 developed. The prothorax is not at all constricted near the apex, 

 and the pronotum has at each side a strong excavated line parallel 

 to and at some distance from the lateral edge, the intermediate 

 surface being broadly subexplanate but only a little more strongly 

 sculptured than the median parts of the disk. 



