144 | PHYTOPHAGA.—SUPPLEMENT. 
with it and forming with the following row avery elongate triangularly-widened space, the fifth and sixth 
rows abbreviated before the apex, the following rows nearly regular and parallel, and their interstices but 
moderately convex ; pygidium and the underside pale flavous, the sides of the breast and the abdominal 
segments more or less dark brown; legs pale fulvous, the femora with a whitish spot; the female with a 
narrow triangular fovea on the last abdominal segment. 
Hab. Mzxico, Rincon in Guerrero (H. H. Smith). 
Of this rather large and plain species two specimens, apparently male and female, were 
obtained by Mr. Smith. Except for the occasionally confluent punctures of the elytra, 
which form short brown streaks here and there, the upper surface is entirely of a uniform 
flavous colour; in one example the sixth, seventh, and eighth rows of punctures are 
interrupted by a raised smooth space at the middle, which may be accidental, as it is 
absent in the other. P. flavescens agrees with P. umbraculatus in the arrangement of 
the elytral punctuation ; but differs in the much more robust and broader shape, the 
more evenly punctured thorax, and the colour of the underside, and also in the almost 
entirely flavous antenne. 
16 (a). Pachybrachys brunneo-maculatus. (Tab. XX XIX. fig. 6.) 
Head and thorax testaceous, the latter very finely punctured and obscurely spotted with brown ; elytra with 
finely impressed, partly geminate, rows of punctures, flavous, the interstices spotted with brown, the 
brown markings forming short longitudinal bands ; underside and legs dark brown, spotted with flavous. 
Length 13-14 line. 
Head entirely testaceous, or obscurely spotted with fulvous on the vertex, sparingly impressed with small and 
at the middle closely-approached punctures; eyes widely separated in both sexes (rather more contiguous 
in the male); antenne nearly as long as the body in the male, the basal two joints fulvous, the others 
pale at their base; thorax proportionately short, more than twice as broad as long, still broader in the 
female, the sides with an oblique depression, the surface finely and rather closely punctured, pale flavous 
or testaceous, a V-shaped obscure brown mark on the disc and a spot on each side ; scutellum raised, flavous, 
its apex truncate ; elytra with the basal portion slightly raised, bounded on each side behind by a transverse 
oblique depression, the basal margin strongly thickened (especially round the scutellum), the punctures dark 
brown and rather regularly but distantly placed in more or less distinct double rows, which are joined at 
some distance from the apex, and somewhat interrupted by irregular punctures placed within the oblique 
postbasal depression, the rows at the sides often sinuate and interrupted by extra punctures, the apex 
entirely impunctate, the interstices forming longitudinal stripes, partly flavous and partly dark brown, the 
short dark brown stripes being generally more distinct at the suture below the scutellum, at the middle of 
the base, on the shoulder, and within the oblique depression, some other brown markings being visible below 
the middle and along part of the punctured strie ; pygidium flavous, with a darker margin ; underside and 
legs brown ; abdomen more or less flavous at the sides ; prosternum longitudinally depressed in the middle, 
its base broadly subtriangular. 
Hab. Panama, Volcan de Chiriqui (Champion). 
The punctuation of the elytra in P. brunneo-maculatus resembles somewhat that of 
P. reguiaris, but it is not so clearly defined. The elytra have also a similar transverse 
depression extending across the middle, so that the basal portion appears to be raised ; 
besides this, the basal margin, especially the part surrounding the scutellum, is strongly 
thickened ; the space below this is irregularly punctured, but the rest of the surface is 
impressed with rather regular rows of punctures which are, however, often closely 
