68 RHYNCHOPHORA. 
extent, in the middle. The sculpture of the elytra differs very little from that of 
B. difficilis. 
Two specimens. 
8. Brenthus guatemalenus, sp. n. 
Niger; prothorace rufo-variegato ; elytris flavo-lineatis, interstitio quarto linea basali brevi, interstitio tertio 
linea apicali valde elongata. 
Long. 12-50 millim. 
Hab. Guavemata, San Juan in Vera Paz, El Tumbador, Cerro Zunil, Pantaleon, 
Capetillo, Zapote (Champion). 
This species differs from B. difficilis in having the thorax red along the middle of the 
upper surface, and also at the sides for a considerable part of the length. In addition 
to this, the relative lengths of the two yellow lines are reversed, the one on the fourth 
interstice being short, while that on the third is very elongate. ‘The fine channel on 
the anterior part of the thorax is moderately distinct in the male, but is not present in 
the female, except in a very indistinct, obsolete manner ; the basal portion of the thorax 
is broadly grooved in both sexes. 
We have received a series of about seventy examples of this insect ; the elytral marks 
are quite constant. 
9. Brenthus variegatus, sp. n. 
Niger, rufo-variegatus; elytris ad latera rufis ad suturam nigris, flavo-lineatis, interstitio quarto linea brevi 
basali, interstitio tertio linea elongata apicali. 
Long. 10-86 millim. 
Hab. Guaremata (Sallé), San Juan and Paurula in Vera Paz, San Lucas Toliman, 
Capetillo, Zapote (Champion), Coban (Conrad). 
Readily distinguished by the variegate elytra, the whole of the outer part of each of 
which is red, only the sutural portion between the yellow lines being black. The 
thorax above is in larger part red, beneath in larger part black. 
Forty-one specimens. 
Had we not received such good series of this insect and of B. gwatemalenus, I should 
have treated B. variegatus as merely a colour-variety ; but as we have not at present 
any intermediate examples, I think it best to regard the two as distinct. The larger 
part of the series was obtained at San Lucas Toliman by Mr. Champion, and no 
specimens of B. guatemalenus were met with there. At Capetillo and Zapote both 
forms were obtained. 
10. Brenthus chiriquensis, sp. n. 
Nigerrimus; elytris flavo-lineatis, interstitio quarto linea brevi basali, interstitio tertio linea valde elongata 
apicali. 
Long. 12-42 millim. 
