72 PHTTOPHAGA. 



consisting of a ring at the base, connected with the sutural and lateral margin, and with another 

 transverse irregular black band near the apex ; the latter and all the other spaces bright yellow : pygi- 

 dium and sides of the abdomen yellow ; legs fulvous ; breast black. 



Hab. Mexico, Puebla (Salle) ; Guatemala, San Geronimo (Champion). 



This species is easily recognizable by the distinct black bands of the elytra and the 

 fulvous thorax ; it seems to be allied to P. mollis, Hald., but differs in the light under- 

 side and the differently coloured thorax. The specimen figured is from San Geronimo. 



23. Pachybrachys laticollis. (Tab. IV. fig. 16.) 



Black below, above light brown ; head and thorax very closely and distinctly punctured, the latter with an 

 w-shaped black mark ; elytra deeply and irregularly punctured, the interstices distinctly costate near the 

 apex. 



Length 2-2% lines. 



Head yellowish, with a black central line which divides into two branches lower down, rather deeply and 

 closely punctured ; antennae half the length of the body, third joint nearly double as long as the second, 

 third and the following joints still more elongate, the terminal joint long and much widened ; thorax 

 very convex and much widened near the base, sides rounded and extending as far as the sides of the 

 elytra, surface impressed throughout with crowded, deep, and rather elongate punctures and numerous 

 small, round, smooth elevations of lighter colour, the ground-colour a light brown, the disk with a 

 distinct n-shaped black mark, the sides of which are very wide ; scutellum black, the apex yellowish ; 

 elytra as wide at the base as the thorax, with about eight very deep costae, mostly visible near the apex 

 only, but two or three of them extending towards the base, the interstices irregularly and closely 

 punctured, the ground-colour a light brown, the humeral callus, the costae posteriorly more or less, 

 and the interior of all the punctures black ; pygidium black, with two terminal yellow spots ; underside 

 black, closely pubescent, the sides of the last abdominal segment and the legs brown or yellowish ; hinder 

 thighs with a black central mark. 



Hab. Mexico, Vera Cruz, Cordova, La Parada (Salle); Guatemala, near the city, 

 Capetillo, Tocoy, San Geronimo (Champion). 



The rather robust shape and large size of this species, together with the other 

 characters given, will help to distinguish it from its allies. The females differ in the 

 want of the dark thoracic mark and, as usual, by the shorter hind thighs. Another 

 special peculiarity of this species consists of the elongate and thickened terminal joint 

 of the antennae and the broad laterally widened thorax. The figure represents a 

 Mexican specimen. All the specimens from Guatemala differ somewhat in coloration 

 and in having a rather more distinct smooth space on the elytra behind the middle. 



24. Pachybrachys championi. 



Light brown below, yellow above ; thorax with an obsolete n-shaped brown mark ; elytra geminate punctate- 

 striate, the first pair widened at the middle, enclosing a round smooth space. 



Length 2\ lines. 



Head closely punctured at the middle, impunctate near the sides, yellow, a central spot and the vertex brown ; 

 antennae half the length of the body, light brown, the apical joints piceous ; thorax narrowly transverse, 

 the sides very rounded near the base, rather closely and deeply punctate on the disk, more remotely near 

 the sides — the usual dark mark extending across the entire disk, but rather broken and unconnected, and 

 consisting of dark brown spots ; elytra convex, slightly narrowed at the middle, with deep dark-brown 



