various Central American Coleoptera. 115 
The metasternum and first ventral segment are without 
femoral lines, and the posterior coxae are not grooved. 
*Lycoperdinella subcaeca, n. sp. (Plate IV, figs. 1, la, 10.) 
Shining, castaneous above, rufo-testaceous beneath, the legs and 
antennae testaceous; sparsely clothed, the legs and antennae 
included, with long pallid bristly hairs. Head almost smooth ; 
antennae reaching to a little beyond the base of the thorax. Thorax 
broader than long, the sides rounded anteriorly and parallel at the 
base, the margins finely denticulate, the deep transverse basal 
sulcus extending outwards to the abrupt longitudinal submarginal 
plica; the surface with very minute scattered punctures and a 
row of larger impressions along the basal margin. Elytra a little 
wider than the thorax rounded at the sides below the base and 
obliquely narrowed thence to the apex, the sutural stria extending 
to the apex; the scattered piligerous punctures irregularly arranged. 
Beneath very sparsely, minutely punctate. 
Length 14 mm. 
Hab. Guaremata, Livingston, Atlantic coast (Barber 
and Schwarz, in U.S. Nat. Mus.). 
Two examples, one of which has been presented to the 
British Museum. 
MYCETOPHAGIDAE. 
PSEUDESARCUS, nN. gen. 
Antennae inserted under the obliquely raised sides of the head, 
long, stout, perfoliate, 11-jointed, widening outwards, 11 abruptly 
truncate at tip; head deeply inserted, subtriangular, small, the 
epistoma sharply separated from the front; labrum transverse, 
exposed; eyes strongly transverse, emarginate; mentum small, 
longer than broad, leaving the maxillae exposed; last joint of the 
maxillary palpi cultriform, that of the labial pair oval, truncate at 
tip; ligula corneous, triangular; coxae rather narrowly, subequally 
separated ; anterior acetabula closed behind ; prothorax with broadly 
expanded margins, emarginate in front; scutellum large; elytra 
broadly oval, the epipleura wide, reaching to very near the apex; 
metasternum short, the episterna broad; ventral segments 1 and 2 
equal in length, 1 triangularly produced between the hind coxae ; 
tibiae narrow, unarmed at apex; tarsi simple, freely 4-jointed, 
1-3 short, 4 as long as the others united, clothed with long hairs 
beneath, the claws long; body broad ovate, convex, villose, winged. 
