EURYGENIUS. 193 
One specimen. This species has the elytra more uniformly punctured than in 
EL. mexicanus or E. lanuginosus. It nearly agrees with E. mexicanus in the form of 
pubescence; but differs from it in the more filiform antenne, and in the less marked 
anterior constriction and finer sculpture of the thorax. Apparently allied to the 
N.-American £. murinus. 
4. Hurygenius horridus. 
Very elongate, blackish-brown or piceo-castaneous, the sides, suture, and base of the elytra castaneous in one 
example, the upper surface thickly clothed with long, coarse, greyish decumbent pubescence and very 
long erect bristly hairs, the pubescence on the elytra here and there forming spots. Head densely and 
rugosely punctured ; eyes very large, almost entire; antenne ferruginous; prothorax longer than broad, 
the sides rounded before the middle, slightly converging and almost straight behind, and constricted just 
before the apex, the surface sculptured much as in EL. meaicanus, but less coarsely vermiculate, the disc 
with a very distinct smooth central line; elytra rather shining, very elongate, impressed with coarse, deep, 
closely placed punctures, which become finer towards the apex ; legs fusco-ferruginous, coarsely and roughly 
punctured, and thickly clothed with very long bristly hairs; fifth ventral segment triangularly depressed 
in the middle behind and the apex truncate in the male. 
Length 9 millim. (<¢.) 
Hab. Mexico, Villa Lerdo in Durango (Hége). 
Two male examples. In this insect the pubescence is longer and coarser and the 
erect hairs are more numerous than in either of the other species described here. 
More elongate than . lanuginosus, the punctuation of the elytra less coarse at the 
sides and base. 
** Pubescence short, fine, and silky, uniform ; punctuation fine; anterior 
constriction of the thorax very sharply defined on the disc. 
5. Hurygenius uniformis. (Tab. IX. fig. 4,3.) 
Narrowly elongate, subopaque; reddish-testaceous, the prothorax suffused with piceous-brown, the elytra 
piceous-brown, with the suture and lateral margins, and an ill-defined stripe extending from the shoulders 
downwards, testaceous ; the entire surface sparsely clothed with short, fine, silky, appressed pubescence. 
Head densely and finely punctured (the punctures umbilicate in form), obsoletely canaliculate behind, the 
neck very narrow; eyes comparatively small, not prominent, coarsely granulated, moderately emarginate 
in front, black, distant from the base of the head; antenns very long, fully reaching to the middle 
of the elytra, filiform, testaceous, joints 6-11 slightly infuscate, 11 a little longer than 10; prothorax 
longer than broad, convex, broadest before the middle, the sides much rounded anteriorly, constricted 
at the middle and thence to the base almost straight, and very abruptly constricted just before the 
apex, the apical constriction connected with a deep groove which extends across the disc and forms a 
short and very distinct neck, the dise obsoletely canaliculate (distinctly so before the apical constriction), 
the basilar groove extending completely across, the surface very densely and finely punctured; elytra 
densely and finely punctured, the punctures becoming coarser towards the base and finer and shallower 
towards the apex; beneath densely punctured and pubescent, testaceous, the venter in great part piceous ; 
legs and palpi reddish-testaceous, the former finely and densely punctured and clothed with short 
silky pubescence. 
Length 5 millim. (¢.) 
Hab. Guatemata, San Geronimo (Champion). 
‘he finer and denser punctuation, short and non-variegate silky pubescence (without 
BIOL, CENTR.-AMER., Coleopt., Vol. IV. Pt. 2, August 1890. 2CC 
