SOSYLUS. 483 
first costa depressed at its termination, but very distinctly separated from the others ; 
the intervals sculptured with numerous fine entire lines. 
We have received five examples only of this species; it differs strongly from S. cen- 
tralis by the sculpture of the thorax. The specimens do not quite agree, but I cannot 
satisfactorily distinguish more than the one species, the typical examples being those 
from Cerro Zunil. . 
7. Sosylus mexicanus, sp. n. 
Piceus, sat nitidus, capite prothoraceque parce punctatis ; elytris costatis, intervallis regulariter sub-bicostatis. 
Long. 5 millim, 
Hab. Mexico (Sallé), Las Vigas (Hége). 
Epistome simple, rounded in front; head with distant punctures. Thorax mode- 
rately long, a good deal narrowed behind, not closely punctured, somewhat shining. 
Elytra elongate ; very distinctly costate, even at the base, the first costa at the apex not 
uniting with the others; each interval very definitely sculptured with uninterrupted 
lines, so as to give rise to the appearance of each being almost bi-costate. 
We have received two specimens only of this species, each in poor preservation ; one 
of them has more numerous punctures on the head and thorax than the others, but 
they agree in the specific characters of the very regularly costate elytra with definite 
lines on the intervals and the simple epistome. 
8. Sosylus strigosus, sp. n. 
Niger, subnitidus, antennis pedibusque piceis; prothorace minus elongato, strigoso ; elytris costatis, costa 
prima ante apicem altius elevata, intervallis minus subtiliter lineato-sculpturatis. 
Long. 5 millim, 
Hab. Panama, Volcan de Chiriqui (Champion). 
Epistome rather narrow and elongate, very slightly emarginate in front, the angles 
acute but deflexed ; the whole front of the head finely, very densely, strigose-punctate, 
dull. Thorax moderately long, closely strigose-punctate, smooth, however, at each 
side; near the base on each side with a deep obliquely-impressed transverse line. 
Elytra very distinctly costate, the first costa not united with the others, and the second 
also free at the tip; the broad intervals are sculptured with very distinct lines, which 
are very elongate, except that the middle line of each interval is quite broken and 
irregular. 
We have received only one example of this species. It is not very closely allied 
to any other. The transverse lines at the base of the thorax ally it to the following 
species. 
3 Q* 2 
