CHLAMYS. 169 
Chlamys venusta (p. 88). 
Chlamys fasciaticollis, Jac. huj. op. p. 85. 
To the Mexican localities given, add :—Jalapa (Hége). 
An examination of the additional material now at my disposal proves that C. fascia- 
ticollis (Tab. V. fig. 7) cannot be separated from C. venusta. 
43. Chlamys admirabilis. (Tab. XX XIX. fig. 23.) 
Subquadrate, black, the head, the sides and front of the thorax, the pygidium, and the sides of the abdomen 
flayous ; thorax with a very strongly raised perpendicular elevation, the elevation divided at the top, the 
sides impunctate; elytra with a very acute ridge at the middle, a tubercle at the base, and three tubercles 
near the apex, the central ridge fulvous within. 
Length 23 lines. 
Head finely punctured, flavous, the vertex darker and finely rugose; antenne fulvous, the apical seven joints 
broadly dilated ; thorax with its middle portion suddenly and perpendicularly raised, the elevation deeply 
divided at the top, and each part furnished with a ridge on its inner side and some deep punctures at the 
apex, the central portion deep black, this colour extending in two lines down the middle to the anterior 
margin, the base with two elongate fulvous spots placed in front of the scutellum, the sides broadly 
flavous and entirely impunctate (the flavous colour forming a broad triangular patch which extends to 
the top of the elevation); scutellum shining, impunctate, black; elytra velvety-black, with a very 
prominent trigonate tubercle at the middle of the base and three others placed triangularly at the apex 
(the one nearest the suture the largest), the dise occupied by the usual oblique ridge (extending from the 
shoulder to the suture where it forms a more than usually raised V-shaped prominence), the inner side of 
which is fulvous, the space between the oblique ridge and the base remotely punctured and furnished 
with some small fulvous tubercles, the suture deeply dentate ; the pygidium, the last abdominal segment, 
as well as the sides of the other segments and some spots on the shoulders, flavous ; legs black, with a 
flavous spot placed at the base and apex of the femora and tibie. 
Hab. Mexico, Atoyac in Vera Cruz (H. H. Smith). 
Only a single specimen of this remarkable Ch/amys was obtained. It seems to belong 
to the group containing C. dromedarius, Koll., and others; the colour of the elytra is 
probably subject to variation as regards the amount of fulvous or black. 
44, Chlamys biplagiata. (Tab. XL. fig. 9.) 
Black, the labrum, the basal joints of the antenne, and the tarsi fulvous; thorax granulate-punctate, the 
elevation round; elytra with four or five longitudinal ridges, bright fulvous, a spot on the shoulder, and 
a transverse band below the middle black. 
Length 1 line. 
Subcylindrical, slightly narrowed posteriorly ; head extremely finely granulate, entirely black; labrum and 
_ palpi fulvous; antenne short, the lower five joints fulvous, the rest black; thorax with a regularly 
rounded undivided central elevation, entirely black, the surface very finely punctured at the sides only, 
the raised portion closely reticulate ; scutellum black ; elytra with four or five more or less distinct cost 
in the usual position (the first two united by a transverse ridge at, and the third and fourth by a similar 
ridge before, the middle), the interstices closely punctured and excavate, the surface fulvous, a round spot 
at the shoulder, a short transverse band below the middle, abbreviated at the sides, and the suture, rather 
broadly, black ; pygidium, underside, and legs black. 
Hab. Panama, Volcan de Chiriqui, David (Champion). 
This little species will be easily recognized by its coloration. 
BIOL. CENTR.-AMER., Coleopt., Vol. VI. Pt. 1, Suppl., February 1890. Zz 
