BRENTHUS. — 65 
as they are in the male; indeed, the larger male individuals are those in which the 
marks are most reduced. | 
The synonymy of this species is very doubtful, and I have merely adopted that given 
in the Munich Catalogue. Herbst did not know the locality of his type, and his 
description and figure! are but poor. In our region this species is apparently chiefly 
northern in its distribution, we having received eight or nine individuals only from 
Panama. I have considerable doubt whether the South-American specimens really 
belong to the same species, but I have not seen sufficient examples to enable me to 
form a decided opinion. We have received about one hundred specimens from Central 
America. 
3. Brenthus championi, sp. n. (Tab. III. fig. 3, ¢.) 
Nigerrimus, elytris flavo-lineatis, interstitio quarto linea elongata aliaque brevi, interstitio tertio lineis duabus 
mediocriter elongatis; elytris fortiter sculpturatis, interstitio secundo angusto, interstitiis externis 
subcarinatis. 
Long. 84 millim. 
Hab. GuatEMAta, Zapote (Champion). 
We have received a single example only of this species; it is of the male sex, and in 
sculpture more resembles B. armiger than any other member of the genus, but it differs 
from that insect in the total absence of caudal prolongations, as well as in the form of the 
head and rostrum. It agrees with B. multilineatus in the disposition of the yellow marks 
on the elytra, but it is distinct therefrom by the sculpture, by the more strongly toothed 
front tibiz, and by the shorter antenne. Antenne short and stout, thickened towards 
the extremity, joints 7-10 transverse. Rostrum short and broad; prorostrum deeply 
sulcate. Thorax sulcate from near the base to near the apex. LElytra black, with pale 
yellow lines disposed as follows—one at the base of the fourth interstice extending 
quite one-third of the length, and one very short, just behind the middle; third 
interstice with two lines of equal length—one on the middle, and one gn the apical 
portion ; second interstice extremely narrow, except at the base and apex; sides of the 
elytra coarsely and closely punctate, so that the interstices are very narrow, and look 
like crenate carine scarcely raised. Prosternum, metasternum, and abdomen canali- 
culate. ‘Terminal ventral segment remarkably coarsely punctate. 
It is quite possible that this insect may prove to be a dwarf form of the male of 
B. armiger, in which, concurrently with the absence of the usual male prolongations, 
the metarostrum, head, and thorax have the form of these parts in the female. The 
var. insubidus, Kirsch, of B. armiger, has the tails very short; in speaking of that 
species I have mentioned that the length of the male caudz is very variable. | 
BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 6, August 18965. KK 
