CAMPTODES. 341 
The colour here is peculiar, and is rather of the type found in Lucamptodes, the 
under surface being yellow, the upper surface black with pallid side margin to the 
prothorax. Only four specimens have been received. 
34, Camptodes heterocheilus, sp. n. 
Rotundato-ovalis, sat convexus, dilute rufus, elytris nigerrimis ; antennarum clava sat lata, subfuscescente. 
Long. 5-53 millim. 
Hab. Muxico, Pinos Altos in Chihuahua (Buchan-Hepburn), Chilpancingo in 
Guerrero (H. H. Smith), Tacambaro in Michoacan (Hége), Guanajuato, Juquila 
(Sallé). 
Antenne with the club a little infuscate towards the extremity. Thorax clear red, 
with numerous punctures, these being more distinct at the sides than on the middle. 
Scutellum red, distinctly punctate. Elytra deep black, rather sparingly, moderately 
coarsely punctate; apex of each moderately rounded. Pygidium moderately closely 
and finely punctured. 
This species, of which I have seen only six examples (of the female sex), presents an 
extreme resemblance to C. melanopterus and to C. addendus, but the structural distinc- 
tions will not allow it to be united with either; the prosternum is longer than it 
is in C. melanopterus, and the metasternum not depressed in front; the club of the 
antenne is not so large nor so dark. From C. addendus it is distinguished by the 
rather smaller prosternum and by the carina of the mesosternum being more slender 
at the base. The labrum has the excision in the middle smaller than in some of the 
allied species, and with straighter sides, so that in this respect this insect somewhat 
approximates to the C. chiriquensis group. The form of the labrum varies, however, 
somewhat from species to species in this section of Camptodes, and is not different in 
C. heterocheilus from what it is in certain others. 
Until more examples have been obtained and the male sex recognized, the species 
must be looked on as rather doubtful. The example from Pinos Altos is a male, but 
being unique and no female found with it its determination is very doubtful; the 
elytra are only fuscous in colour, and the example may be an exponent of a distinct 
species allied to C. communis and C. cognatus. It is interesting as being obtained 
further to the north than any other individual of the genus. A male from Chilpan- 
cingo more probably is really that sex of C. heterochetlus; it is smaller than the 
female, and has the elytra only fuscous-black, at the sides even testaceous in colour. 
35. Camptodes addendus, sp. n. 
Rotundato-ovalis, subconvexus, dilute rufus, elytris scutelloque nigris ; illis crebre, minus regulariter, versus 
suturam fortius, punctatis. 
Long. 5 millim. 
Hab. Guatemaa, Capetillo, Duefias (Champion). 
