404 PROCEEDINGS OF THE NATIONAL MUSEUM. 



Feiiude. — Head large, rather quadrang-ular when viewed from above; 

 clypeus quite convex Literally, coarsely, not closely punctured, and 

 bearing long, rather stout, black hairs; its anterior margin reflexed, 

 smooth, and with a broad shallow notch in the middle; sides of the 

 frons and around the bases of the antennae covered with long hairs; 

 the antennae appear to arise from slight depressions of the frons, 

 whicii is very minutely punctured above except near the sides of the 

 lat(>ral ocelli; vertex and cheeks scatteringly punctured, with long 

 hairs; the cheeks nearly as wide as the eyes; antennae black, the first 

 segment of the filament longest, one-third longer than the second; 

 mandibles black, stout, with a trace of dark ferruginous near the^ase 

 of the anterior tooth; front face with scattered aciculations along its 

 lower edge and with a num})er of long hairs on this edge or on the 

 hinder face. 



Thora.r. — Collar narrow, almost vertical in front and l)ehind, not 

 closely appressed against the mesonotum, rather fiat near the median 

 line; on the edge punctured, and with numerous hairs, shorter than 

 those of the cheeks; prothoracic lobe sparsely, minutely punctured, 

 with hairs of medium length and a fringe of pale brown hairs on its 

 posterior margin; mesonotum minutely, closely punctured, covered 

 with very short hairs; the anterior median groove not very pro- 

 nounced; at the sides, beginning near the front edge of the tegula?, 

 the lateral margin is somewhat reflexed, this continuing backward, 

 then inward on the hinder margin till the scutellum reaches its level; 

 scutellum glistening, with minute, scattered punctures; with a broad, 

 shallow, median depression behind; at each side near the anterior 

 margin is a short, oblique ridge running outward and backward; post- 

 scutellum glistening, sparsely, minutely punctured, with an evident 

 median groove; median segment dull black, closely punctured, and 

 quite closely covered with rather short, blackish, brownish, and gray- 

 ish hairs, with a suggestion at some angles of faint transverse acicu- 

 lations; the dorsum with a slight median depression, broadest behind; 

 fovea rather narrow, crescentic; posterior end and sides of the median 

 segment rather finely, not closely punctured, covered with rather long 

 black hairs mixed with a few grayish ones; sides of the thorax with 

 scattered punctures and long hairs; petiole straight, shorter than the 

 posterior coxtie, with scattered minute punctures and long black hairs. 



Abdomen. — Long, ovate, rather more pointed behind than in front: 

 above glistening, with scattered very minute punctures, becoming 

 larger and more noticeable on the last three, and particularly on the 

 last two plates, which bear brownish-black hairs on their sides, longer 

 on the terminal plate; beneath glistening, with scattered punctures, 

 particularly on the sides of the plates, from which hairs arise; on the 

 last three plates the punctui'es and hairs are more closely placed; the 

 first ventral plate has two ridges diverging backward from the end of 

 the petiole. 



