164 PHYTOPHAGA.—SUPPLEMENT. 
The single specimen obtained by Herr Hége in Mexico does not seem to differ from 
others from North America contained in my own collection. The thorax has the raised 
middle portion divided into two rather pointed parts, but this division is placed at a 
very short distance from the base (in many species of Chlamys the separated portion is 
placed more towards the middle), and almost the entire surface is finely strigose. The 
Mexican specimen is nearly black, but with the head of a brownish-zneous colour and 
the antenne entirely fulvous. 
17 (s). Chlamys strigicollis. (Tab. XXXIX. fig. 21.) 
Subquadrate, black, the head, antenne, and legs (part of the femora excepted) fulvous; thorax with a nearly 
perpendicular high elevation, obliquely strigose throughout ; elytra with four very strongly raised longi- 
tudinal ridges near the base, and two shorter, still more elevated elongate tubercles near the apex. 
Length 13-14 line. 
Head scarcely visibly punctured, fulvous, the vertex sometimes with a small black spot; antenne short, dentate 
from the fifth joint, entirely fulvous; thorax with a strongly raised perpendicular hump, the top of which 
is deeply channelled but rounded, its sides and the rest of the surface traversed by oblique strige which 
are shining and partly united, the interspaces here and there impressed with a few punctures ; scutellum 
impunctate, transverse ; elytra nearly subquadrate, black, with three very distinct ridges commencing at 
the base and united at the middle by an equally distinct transverse ridge which extends obliquely towards the 
shoulder, and behind the transverse ridge a longitudinal one running parallel with the suture and another 
with the lateral margin, both with acute edges, the interspaces deeply punctured and minutely strigose ; 
pygidium with three longitudinal ridges; legs fulvous, the outer sides of the four posterior femora more 
or less black. 
Hab. Panama, Bugaba (Champion). 
C. strigicollis seems to be allied to C. chrysocephala, Klug, by its coloration and other 
characters; but differs in the shape and size of the thoracic elevation, and in having the 
entire surface of this part covered with strige; the elytral elevations or ridges are also 
more than usually raised, the most prominent one being placed near the lateral margin 
at the apex. 
17 (c). Chlamys scrobicollis. 
Chlamys scrobicollis, Lacord. Monogr. p. 717’. 
Hab. Panama, Bugaba, Volcan de Chiriqui (Champion).— CoLoMBIA }. 
Chiriqui specimens agree well with Lacordaire’s description of this insect. C. scrobi- 
collis is a small-sized species (3-1 line), of shining black colour, and may be known by 
the three more or less distinct sinuate ridges on each side of the thoracic elevation; the 
elytral costa, which extends from the shoulder to the middle of the suture, is very 
strongly raised, and some prominent tubercles are placed near the apex ; the labrum, 
antenne, palpi, and tarsi are fulvous or flavous. 
20 (a). Chlamys brunnea. 
Subquadrate, pale brownish ; thorax with a slightly raised elevation, the apex of the elevation with two ridges ; 
