674. BYRRHIDA. 
ventral segments, which makes them appear dull. The prothoracic front angles are 
not spinose. The prosternal impression does not extend much more than half the 
length from back to front. Six specimens. 
2. Eulimnichus sublevis, sp. n. 
Ovalis, convexus, niger, nitidus, obsolete punctatus, parce brevissime setosus, fere nudus; capite opaco, 
vertice sublevi. 
Long. 13 millim., 
Hab. Guatemata, San Gerénimo (Champion). 
This insect agrees with E. ephistemus in that the sculpture of the head is much 
more effaced than it is in the following species. E. sublevis is, however, much more 
elongate than E. ephistemus, and the integument is not polished and highly shining, 
but under a good power (4-inch) exhibits a peculiar sculpture consisting of distant 
and rather large, but extremely shallow punctures, accompanied by a fine reticulation ; 
the excessively minute sete are only conspicuous on the thorax. In this group of 
species there exists a very remarkable character, inasmuch as a large area at the base 
of the thorax is delimited by a line of excessively minute dense sculpture ; this line 
is extremely indistinct in the allied species, but is clearly perceptible with a good 
Coddington lens in E. sublevis. (In the genus Phalacrichus this peculiarity of sculp- 
ture becomes much exaggerated.) The sculpture of the head and upper surface is 
much more effaced in E. sublevis than it is in E. leticulus and E. optatus. ‘Three 
specimens. 
3. Kulimnichus leticulus, sp. n. 
Ovalis, elongatus, niger, fere subsenescens, nitidus, parce punctatus, subtiliter pubescens; prothoracis angulis 
anterioribus haud spinosis. 
Long. 2 millim. 
Hab. Mexico, near the city (Flohr); Guatemata, Paso Antonio, San Gerdénimo 
(Champion). 
This species is allied to Limnichus montanus, Lec., the intervals between the remote 
punctures being occupied by an extremely fine reticulation of a somewhat hexagonal 
shape, as described by Casey; besides this, the punctures are not sharply defined, 
obscure creases proceeding from them, so that the surface is somewhat coriaceous, 
not at all polished. Although the front angles of the thorax are not spinose, yet 
they are (viewed from beneath) well-marked and almost rectangular, and just per- 
ceptibly prominent. The under surface, legs, and antenne are intensely black. The 
posterior coxal plates bear deep punctures, but are not impressed in a sulcate manner. 
The scutellum is elongate and narrow. Four specimens. 
