BATRISUS, 13 
5. Batrisus 2 
Hab. Guatemaa, Totonicapam between 8500 and 10,000 feet (Champion). 
Only a single female was found of this insect, and it is therefore not advisable to 
attempt to found a species on it; I have little doubt, however, that it is quite distinct, 
as it has a much more elongate hind body than any of its allies. 
6. Batrisus truncaticeps. 
Gracilis, rufo-testaceus, nitidus, parce pubescens; antennis pedibusque testaceis, illis gracilibus ; capite plano, 
levigato, utrinque foveolato. 
Long. 13 millim. 
Mas capite posterius recte truncato, tibiis anterioribus inflatis, antennis basi curvatis. 
Hab. GUATEMALA, near the city (Champion). 
Although quite similar to B. simplicicornis and B. curvicornis the male characters are 
very different:—The head is quite straight behind, not rounded, with well-marked 
rectangular angles; the antenne are slender, and the third, fourth, and fifth joints 
form a curve, the fifth being prolonged and projecting downwards, the sixth, seventh, 
and eighth joints are slender and straight, the three terminal joints forming an elongate 
slender club; the front tibie are much inflated, and when viewed in one direction 
appear to have the lower half abruptly more slender, and the swollen upper part is, I 
think, occupied by a cavity or fovea opening below on the front face of the tibia; the 
middle tibize are mucronate at the extremity; and the terminal ventral segment is 
flattened but not foveate. 
Only one example of this curious insect was obtained; mounted on the same card 
with it by Mr. Champion is a female which I am unable to distinguish by any character 
from that sex of B. simplicicornis, still so close are the females of this group of species 
that it is just possible it may be the female of B. truncaticeps; under these circum- 
stances it is doubtful whether the peculiar truncate vertex be a specific or a sexual 
character. 
7. Batrisus castaneus. 
Gracilis, nitidus, castaneus; antennarum apice pedibusque testaceis ; capite plano, utrinque foveolato. 
Long. 1? millim. 
Mas tibiis anterioribus ultra medium rotundato-subdilatatis. 
Hab. Guatemata, San Juan in Vera Paz (Champion). 
This is a very peculiar species of which the male only has been discovered, and of 
that sex only a single example. The colour and the shape of the elytra are more like 
those of the female sex of the preceding species ; the elytra, however, though rounded 
at the sides and shoulders, are much longer than in the females of B. simplicicornis ; 
the head also differs but little from that of the female of B. simplicicornis, being 
destitute of peculiarities of structure or punctuation. The antenne are slender and 
