ADEROCHARIS. 5538 
respect with my original individual from the Amazons valley: the larger examples from 
our region agree with specimens from Rio Janeiro which I formerly thought might be 
distinct ; but I find they all agree in the structure of the cedeagus, and in this respect 
differ completely from the North-American Lithocharis corticina, Grav., though in other 
respects the two species are very similar. A Mexican example is extant in Chevrolat’s 
collection under the name L. fuscipennis, Chevr., and this was considered by Fauvel to 
be L. hepatica, Er.; Erichson’s description indicates, however, a much smaller insect, 
with the head less emarginate behind than it is in A. latro. 
2. Aderocharis furtiva. 
Latiuscula, subdepressa, opaca, densissime subtilissime punctulata, fuscula; antennis, prothorace elytrisque 
ferrugineis, his interne subinfuscatis; pedibus testaceis ; capite subquadrato, posterius truncato, angulis 
posterioribus haud rotundatis. 
Long. 7 millim, 
Hab. Mexico, Oaxaca (Hége); GuaTEMaLA, San Gerénimo (Champion); Nicaragua, 
Chontales (Janson); Panama, David (Champion). 
This insect is closely allied to A. latro, but does not attain the size of the smallest 
examples of that species, and has the thorax more pallid in colour; the head is more 
quadrate, being scarcely perceptibly emarginate behind; the front of the thorax on either 
side is less oblique, that is to say, the front margin is nearly rectilinear in form; and the 
male characters are very different, the penultimate ventral segment having the hind 
margin straight and bearing a few fine long black hairs on either side, the terminal 
segment being very broadly emarginate. The cedeagus is very different from that of 
A. latro. 
A fine series of over forty examples, showing no variation, was procured at San 
Gerénimo, but we have only two Mexican specimens; from Nicaragua and the State 
of Panama we have only unique exponents, which may possibly be distinct. The 
North-American JZ. corticina, Grav., is no doubt closely allied, but has the head deeply 
emarginate behind; and I find, moreover, that the cedeagus is so different as to leave 
no room for doubt as to its being perfectly distinct from A. furtiva. 
3. Aderocharis sagax. 
Latiuscula, subdepressa, opaca, densissime subtilissime punctulata, sordide rufa, pedibus testaceis ; capite sub- 
quadrato, posterius emarginato. , 
Long. 63 millim. 
Hab. Guatemaa, Paso Antonio (Champion). 
This species also is a large Aderocharis, extremely closely allied to A. latro, but, so 
far as I can judge from the two examples, more pallid in colour, and with a curious 
difference in the male characters ; in that sex the hind margin of the penultimate ventral 
plate is armed with four angular teeth, and the next segment is less deeply emarginate. 
BIOL. CENTR.-AMER., Coleopt., Vol. I. Pt. 2, July 1886. 4 BB 
