328 SUPPLEMENT. 
1(p). Pristoscelis femoralis. 
Nigro-plumbeus, subzeneus, breviter nigro-pilosus, nitidus, creberrime punctatus ; tibiis tarsisque fulvescentibus. 
Long. 5 millim. 
Hab. Mexico, Puebla (Sailé). 
The head and thorax in this species are so closely and finely punctured that separate 
punctures are only visible under a very strong magnifying-power; this, and the rather 
broader thorax, which is less narrowed in front and less deflexed at the sides, together 
with the reddish legs (excepting the femora), will distinguish it from P. nigroeneus ; in 
other characters it is very similar to that species, but the pile will be observed to be 
both denser and blacker. 7 
I have at present only found two specimens in Sallé’s collection which I can assign 
to this species. There are, I suspect, a large number of species of Pristoscelis to be 
separated by very minute characters, of which this is one. 3 
1(z). Pristoscelis fulvipes. 
Nigro-zneus, breviter pilosus, tenuiter pubescens, creberrime leviter punctatus; pedibus fulvis; antennis nigris, 
latiusculis, articulo tertio piceo. Long. 6 millim. 
Hab. Guatemata (coll. G. &. 8.). 
The large size and the red legs of this species are sufficient for its recognition, it 
being rather larger than P. rujfipennis. The structure is generally the same as in that 
species; the mandibles are pitchy-red, except at their outer edge and tips, which are 
black ; the antenne have the six joints preceding the last one transverse, not noticeably 
serrate, the terminal joint not much longer than wide, blunt at its apex; the thorax 
is distinctly, not confluently, but thickly punctured; the elytra with close, somewhat 
confluent and stellate, punctuation. 
One specimen, without precise locality. 
4. Pristoscelis fuscus ? 
Dasytes fuscus, Leconte, Proc. Ac. Phil. vi. p. 1691? 
Byturosomus griseus, Motsch. Bull. Mosc. 1859, ii. p. 895. 
Byturosomus rufipes, Motsch., teste Leconte. 
Hab. Nortu America, United States, California!.—MeExico, Pinos Altos in Chihuahua 
(Buchan-Hepburn). | 
Leconte omits to mention the colour of the legs of his insect ; in the single specimen 
of what may possibly be this species, taken in Northern Mexico by Mr. Buchan- 
Hepburn, the legs are griseous and clothed with scales and hairs, the front femora 
being red within; the thorax is wider and more depressed than in any other species 
of the genus known to me; and the elytra are densely clothed with grey shining 
