CAMPTODES. 337 
A. 
Colour testaceous or ferruginous. (Species 24-31.) 
24. Camptodes communis. 
Camptodes communis, Er. in Germ. Zeitschr. iv. p. 336°. 
Hab. Mexico 1, Ventanas in Durango 2000 feet (Forrer), Jalapa, Frontera, Tapachula 
(Hoge), Atoyac, Teapa (H. H. Smith), Cordova, Vera Cruz, Tuxtla (Sallé), Temax in 
North Yucatan (Gaumer); Brisa Honpuras, R. Hondo, Belize (Blancaneaux) ; 
GuatemALA, Zapote, San Gerdénimo, Chacoj, Teleman (Champion). 
Var. vilis minor, punctatura prothoracis disci minus obsoleta ; elytris fuscis ; mas et femina similes. 
Hab. Muxico, Teapa (H. H. Smith), Tapachula (Hége) ; British Honpuras, R. Hondo 
(Blancaneaux) ; Guatemata, La Tinta in Vera Paz (Champion). 
This species, as understood by me, is a most variable one, and very difficult to define 
and recognize in all its variations. It has, however, as the first and most important 
character, the sculpture of the pygidium excessively minute, so that it is only subopaque, 
and that the larger punctures on it are very fine and distant. Great differences occur 
in other respects, more particularly in the males; the large examples of this sex are 
quite dull on the upper surface, and have the sculpture of either the thorax or the 
elytra, or of both, more or less completely effaced ; other specimens of this sex have the 
sculpture but little different from that of the female, and thus connect the var. vilis with 
the larger forms; this variety, if compared only with the well-marked males of the larger 
form, would be almost certainly considered a distinct species. Mr. Gaumer sent us a 
large series of C. communis; the larger number of his specimens are of the female sex, 
but the males sent by him exhibit a great deal of variety. There is also considerable 
variation in the series procured by Mr. Smith at Teapa. The specimens from Guatemala 
are few in number, but also vary very much. Reitter has merged two or three of 
Erichson’s South-American species in C. communis, but it is very doubtful whether this 
is correct. 
25. Camptodes externus, sp. n. 
Rotundato-ovalis, nitidus, rufo-testaceus, elytris externe late nigricantibus ; prothorace tantum obsolete punc- 
tato ; elytris parcius punctatis. 
Long. 4 millim. 
Hab. Mexico, Jalapa (Hége), Cordova (Sallé); GuatemMata, Cerro Zunil (Champion). 
This, though very closely allied to C. communis, is, I think, probably a distinct 
species. The black colour extending all over the outer parts of the elytra is not 
perhaps of much importance, but it is accompanied by a finer punctuation on the 
thorax and a more scanty one on the elytra. The antenne are entirely yellow, and the 
pale yellow pygidium is quite destitute of punctures. The var. vilis of C. communes, 
which also has yellow antenne and is the only form of that species that much resembles 
BIOL. CENTR.-AMER., Coleopt., Vol. II. Pt. 1, February 1891. 2X* 
