Barin.e 383 



the form of that part in texana, and the vestiture is quite different, 

 owing to the dense oval scales of texana. The following is another 

 species distinctly different from texana: 



Trichobaris amplicollis n. sp. — Oblong-elongate and parallel, convex, 

 black; upper surface clothed very densely with elongate-oval ashy scales, 

 concealing the surface, transverse as usual on the pronotum, the elytral 

 striae indicated by fine and feebly marked partings; under surface with 

 very dense oval or truncate scales of the same color, the median basal 

 part of segments three, four and five glabrous; beak in the female arcuate, 

 rather thick, densely squamulose and as long as the prothorax, gibbous 

 on the upper surface at base; prothorax transverse, not quite one-half 

 wider than long, the sides parallel, feebly arcuate, rounding in about 

 apical third; sculpture deep and moderately coarse, dense but not very 

 coalescent; elytra three-fifths longer than wide and parallel, gradually 

 rounding behind, scarcely a fifth wider than the prothorax and between 

 two and three times as long, the humeri rather prominent. Length (9 ) 

 5.4 mm.; width 2.2 mm. Texas (Terrell). 



Distinguishable from texana by the much more elongate elytra 

 and shorter prothorax; in both species, a slightly denuded crevice 

 between the bases of the prothorax and elytra near the humeri, 

 replaces the more discal denuded spots of the trinotata type, 



Rhaptinus n. gen. 

 The body in this genus is subcylindric but not slender, convex, 

 the integuments nude, excepting sharply defined dense patches of 

 scales, variously disposed according to the species. The beak is 

 stout, cylindric, slightly arcuate, about as long as the prothorax, 

 distinctly sculptured and may sometimes be tumid and densely 

 scaly at base above, as in the preceding genus; the antennae are 

 nearly similar but smaller, the club oval and pubescent. The 

 prothorax is rapidly contracted at apex and often subtubulate, 

 parallel or rounded at the sides, the punctures strong, not dense, 

 and very notably evanescent medio-basally as in many Madarids, 

 the scutellum rounded or subquadrate, sometimes feebly canalicu- 

 late. Elytra rather short, parallel, only slightly wider than the 

 prothorax, obtuse at apex and without humeral callus, the striae 

 fine, sometimes coarser and crenate basally; the intervals are flat 

 and with minute sparse punctures. Pygidium vertical and distinct 

 in both sexes. Prosternum flat, unmodified, separating the coxae 

 by their own width to a little less, the anterior and post-coxal part 

 divided by a suture at the middle of the coxae, the hind margin 



