160 PHYTOPHAGA.—SUPPLEMENT. 
Head flat, closely punctured, with a small and very obscure fulvous central spot; antenne flavous, the apical 
four joints fuscous ; thorax black and shining, the middle portion raised into a rounded and moderately 
high elevation which is bounded at the sides and posteriorly by a distinct groove, the surface of the 
elevation reticulate throughout and remotely punctured, and with the centre traversed by an obsolete 
channel which is bounded laterally by a very short ridge, the sides also raised into an obsolete tubercle ; 
elytra very slightly narrowed posteriorly, each with a longitudinal costa commencing near the scutellum 
and extending to the middle, and here joined by a transverse ridge to the second costa, the latter com- 
mencing at the middle of the base and extending nearly to the apex (the middle portion appearing to be 
double owing to another closely approached ridge running parallel with it), and a short third ridge running 
from the middle of the second to the shoulder (its lower portion bounded by a transverse ridge which 
turns downwards near the lateral margin and below the middle joins another transverse one so as to 
include a subquadrate excavated space), the apical portion entirely occupied by fovew and short tubercles, 
the interstices remotely punctured, the suture dentate throughout its entire length; pygidium finely 
punctured, with an obsolete central ridge ; legs black, with the upper margin of the anterior and inter- 
mediate femora more or less fulvous, the tarsi flavous. 
Hab. Mexico, Acapulco in Guerrero (Hé6ge). 
C. héget is very closely allied to and possibly only a variety of C. collaris, but differs 
from it in the sculpture of the thorax :—in C. collaris the thorax is very closely punc- 
tured at the sides and the interspaces are almost as closely wrinkled, the wrinkles 
forming reticulations at the top of the elevation ; in C. héget the sides of the thorax 
are comparatively remotely punctured, and the interstices are smooth and shining and 
the reticulations few. 
11 (vp). Chlamys inconspicua. 
Elongate, subcylindrical, black, opaque ; the labrum, antenne, and tarsi fulvous; thorax finely punctured, the 
central elevation channelled in the middle; elytra with obsolete short longitudinal ridges, partly connected, 
the suture smooth. 
Length 3~1 line. 
Head finely rugose and reticulate ; labrum fulvous ; antenne with the fourth and following joints transverse, 
fulvous, the terminal joints obscure fuscous; thorax with the centre raised into a rounded hump, which is 
channelled in the middle and has its sides near the top reticulate and divided by some ridges, the lateral 
portion very finely punctured, the interstices nearly smooth ; elytra entirely opaque, finely granulate and 
punctured, the longitudinal ridges partly indistinct (one placed close to the suture, another running from 
the middle of the base to the apical portion, and a third starting from the shoulder and extending almost 
as far posteriorly as the second) and with short transverse ridges between them, the interspaces uneven 
and finely punctured, the suture entirely smooth; pygidium rugose and with three more or less distinct 
longitudinal ridges ; underside and legs black and opaque, the tarsi bright fulvous. 
Hab. Panama, Bugaba, Volcan de Chiriqui (Champion). 
This opaque, dull black Chlamys may be known at once from the allied forms by 
the elytral suture being smooth (or without teeth), which character it has in common 
with several species found in Brazil. There is no characteristic design in the elytral 
sculpture, and the arrangement of the ridges is less distinct than in many of the allied 
species: in some specimens a short transverse ridge placed at the middle close to the 
suture and two subtubercular longitudinal elevations at the apex (one near the suture, 
the other at the sides) are plainly visible. Two diverging rather distinct ridges, one 
on either side of the median channel, are placed at the top of the thoracic elevation. 
