6 MALACODERMATA. 
6. Lycostomus loripes. (Tab. I. fig. 8, 3.) 
Lycus loripes, Chevr. Col. Mex. Cent. ii. fase. vil. p. 148°. 
Lycus testaceus, Dej. Cat. . 
Hab. Mexico’, Guanajuato, Oaxaca, Teapa (Sallé), Almolonga (Hége) ; GuaTEMALA 
(Sallé). 
I have examined a ‘considerable series of specimens in M. Sallé’s collection, by whom 
this species was originally discovered, and can only come to the conclusion that it varies 
in size and colour, but that they are not specifically distinct. In the Guanajuato speci- 
mens the thorax has the front bisinuate, with prominent anterior angles, and the whole 
insect is rather more shining and ferruginous red. In HOge’s specimens, one of which 
is figured, the scutellum is yellow; and I have seen one specimen with the tibie yellow. 
7. Lycostomus sommeri. (Tab. II. fig. 2.) 
Pallide testaceus, antennis (basi excepta), tibiis, tarsis elytrorumque apice nigris ; thorace antice elevato vix 
carinato, postice canaliculato, angulis posticis acutis. 9. Long. 11 millim. 
Hab. Mexico, Teapa (Sallé) ; Nicaragua, Chontales (Belt). 
Allied to Z. loripes, but distinct by the black apical third of the elytra &c. 
The Teapa specimen is figured. : 
8. Lycostomus semiustus. (Tab. I. fig. 9, 9.) 
Lycostomus semiustus, Chevr. Col. Mex. Cent. i. fase. v. 105. 
Hab. Mexico, Cordova (Sallé, 3 2), Jalapa (Hoge, ¢ ). 
The tibie of the male, especially the hind pair, are much bent, and the posterior 
femora thickened ; the trochanters subdentate. 
A variety taken by Hoge at Jalapa, whence the specimen figured was obtained, is 
paler in colour than the type, and has the underside of the body partly yellow; but, 
from the shrivelling of the elytra, this I think is due to immaturity. 
9. Lycostomus carnifex. 
Niger, prothoracis lateribus elytrisque sanguineo-rufis, his circa scutellum nigris, lineis octo leviter elevatis ; 
prothorace transverso, antice carinato, medio canaliculato, angulis posticis acutis productis. Rostro in 
utroque sexu perbrevi. ¢ 2. Long. 11 millim.: 
Mas elytris leviter ampliatis, segmento septimo inciso. 
Hab. Mexico, Jacale (Sal/é). 
This insect may profitably be compared with Lygistopterus sanguineus (L.), which 
it resembles in size and colour, as illustrating the differences between the genera. ‘The 
rostrum is as short as in that species; the second joint of the antenne, however, is 
much shorter. The thorax has the usual carina in front. In L. sanguineus the channel 
