172 MALACODERMATA. 
wings, but broad and short; the shoulders and base rusty red; about the middle a 
white fascia, separated by the blackish ground-colour (which also invests the suture at 
the base and scutellum) from the red, apical half blackish. Legs black, extreme base 
and four anterior tarsi red, tips of the middle pair dark. 
Three specimens have been sent. 
12. Hydnocera hematica. 
Nigra, nitida; thorace (maris?) parce punctato; antennarum basi, palpis elytrisque basi rufis. Long. 53 
millim, ¢? 
Hab. Mexico, Puebla, Cuernavaca (Sal/é). 
Nigra, subopaca; thorace elytrisque crebre, subrugose punctatis; elytris basi rufis. 9? 
Hab. Mexico, Cuernavaca (Sallé). 
I have scarcely a doubt that these two forms belong to one species, though I am not 
certain to which sex to refer them. It is a species very much like H. humeralis, Say, 
which occurs in Texas and probably in Mexico, from which it differs in not being of a 
blue-black colour, in having the red portion at the base extending to the margin and 
further down the elytra, only leaving the suture and scutellum black (in one female the 
red extends completely across the base), in not having the antenne entirely red, in 
having the elytra slightly narrowed to the apex, and (as I think) in having longer femora, 
of which the hind pair reach behind the apex of the elytra. 
13. Hydnocera clavata. 
Nigra, nitida; capite prothoraceque vix punctatis parcius pilosis, oculis antice approximatis; antennarum 
articulo basali et duobus penultimis pallidis ; elytris quam corpus brevioribus, plaga magna humerali pedi- 
busque testaceis; femoribus posticis incrassatis, tibiis posticis apice nigris. Long. 7 millim. ¢. 
Hab, Mexico, Juquila (Sal/é). 
This species, with the exception of the legs, is coloured like H. hematica. The eyes 
nearly contiguous in front and the swollen posterior femora are unusual characters; I 
have not observed the latter in any other species: while I think both of the two speci- 
mens in Sallé’s collection are males, I think at the same time that this latter may not 
prove to be a sexual character. The legs, including the coxe, are entirely pale, with 
the exception of a small black piece at the apex of the hind tibie, and that the claws 
are brownish. ‘The elytra are evenly, not coarsely, punctured. The apical joint of the 
antenne is black, but the two preceding ones are whitish; one or two at the base are 
also pale. 
14. Hydnocera obscura. 
Sordide fusca; antennis basi, palpis, pedibus, elytris macula subhumerali et ad apicem indeterminate testaceis ; 
prothoracis margine antico et postico rufo. Long. 33-5 millim. 
