EMMENASTUS. 13 
obtuse. Narrower and more convex than EL. solitarius, the thorax narrowed behind and 
more rounded at the sides, and the elytra not nearly so coarsely punctured ; narrower, 
smaller, and more convex than #. rotundicollis, the thorax especially narrower, the 
rows of punctures of the elytra finer and not so distinct. . 
Of the form of Eurymetopon rufipes, but smaller ; it may be known from all the species 
of Emmenastus here recorded, excepting L. solitarius and E. rotundicollis, by its closely, 
coarsely, and evenly punctured thorax, in which respect it resembles EF. teranus, Lec. 
13. Emmenastus alatus. 
Winged, oblong ovate, convex, black, shining. Head coarsely and rather closely punctured ; prothorax convex, 
moderately transverse, widest behind, scarcely narrowed at the base, rounded and narrowed in front to the 
subacute anterior angles, hind angles rather obtuse subrectangular, base bisinuate and feebly impressed on 
each side near the middle just within the margin, coarsely closely and rather unequally punctured, the 
punctures scattered in the middle, confluent at the sides, anterior margin feebly emarginate on each side 
just behind the eyes; elytra a little or scarcely wider than the thorax at the base, convex, with rows of 
coarsish punctures distinct to the apex, interstices closely and rather coarsely punctured; legs and antennze 
red; intercoxal process rather pointed in front; mandibles toothed above. 
Length 7-73 millim. 
Hab. Guatemaua, near the city (Salvin). 
Three examples. Larger, longer, and a little more convex than E. salvini, and with 
the thorax a little longer and less transverse. 
I did not myself meet with this species, nor with L. salvini. 
14. Emmenastus salvini. 
Winged, oblong ovate, moderately convex, black. Head closely and rather coarsely punctured; prothorax 
transverse, not very convex, widest behind, narrowed and rounded in front, scarcely narrowed behind, 
angles rather obtuse and not prominent, anterior margin fecbly emarginate on each side near the angles, 
base bisinuate and feebly impressed on each side near the middle just within the margin, rather coarsely 
and closely punctured, the punctures confluent at the sides; elytra a little wider than the thorax at the 
base, with rows of fine punctures distinct to the apex, interstices rather closely and finely punctured; legs 
and antennze red; mandibles toothed above; intercoxal process pointed in front. 
Length 64 millim. 
Hab. GUATEMALA, near the city (Salvin). 
Four examples taken by Mr. Salvin near the Cerro del Carmen are all I have seen of 
this species. 
Of the form of E£. canaliculatus, but much smaller, the hind angles of the thorax 
more obtuse, the punctuation of the elytra finer, &c. 
15. Emmenastus ambiguus. 
Winged, oblong ovate, very convex, black, shining. Head coarsely but sparingly punctured; prothorax trans- 
verse, convex, rounded at the sides, widest behind, narrowed in front to the rather obtuse anterior angles, 
hind angles rectangular, the base bisinuate and with a short oblique obsolete impression on each side about 
the middle, with scattered rather coarse punctures, the punctures finer and more distant in the middle, 
coarser at the base, and a little confluent at the sides; elytra convex, the width of the thorax at the base, 
a little rounded at the sides, with rows of coarsish punctures distinct to the apex, the interstices flat and 
