270 STAPHYLINIDZA. 
Hab. Guatemata, Balheu and San Joaquin in Vera Paz, Carrizal, San Gerdénimo 
(Champion). 
Antenne black, very obscurely paler at the base; third joint short, shorter than the 
second ; fourth smaller than the others; fifth and following joints strongly transverse ; 
terminal joint short, quite rounded at the extremity. Head a good deal narrower than 
the thorax, not closely punctured, rather shining. Thorax transverse, scarcely so broad 
as the elytra; the sides nearly straight; the surface rather sparingly punctured and 
distinctly pubescent, but yet shining. Elytra longer than the thorax, not densely 
punctate, slightly shining. Hind body not very depressed, subparallel, not densely 
punctate. 
In the male the hind margin of the dorsal plate of the seventh segment of the hind 
body is armed with three rather short, very thick, rather approximate, equidistant 
teeth, the outer one of these on each side being slightly curved; the preceding plate 
bears on the middle two rather distant, minute, and short linear carine. _ 
Eight specimens have been found of this species. 
4, Placusa simplex. 
Sat depressa, posterius acuminata, crebre punctata evidenterque pubescens, nigra, antennarum basi pedibusque 
testaceis, elytris nigro-fuscis, abdominis apice fusco-testaceo; antennis haud elongatis, subgracilibus ; 
prothorace sat fortiter transverso, antrorsum leviter angustato. 
Long. 27 millim. . 
Hab. GuatTeMALA, Quiche Mountains, at an elevation of between 7000 and 9000 feet 
(Champion). 
Antenne rather slender, not elongate, conspicuously setose; third joint slender, 
shorter than the second; fourth slender, longer than broad, fifth also longer than 
broad, tenth about as long as broad; terminal joint rather stout, not elongate. Head 
much narrower than the elytra. Thorax rather convex, rather closely punctate, rounded 
at the sides and a little narrowed in front. Elytra longer than the thorax, closely 
punctate. Hind body closely punctate. 
The male characters are but slight: there is a very fine minute tooth on each side of 
the hind margin of the dorsal plate of the seventh segment of the hind body; and 
between these teeth there are some excessively minute serrations, so small, indeed, that 
they can only be detected by isolating the plate. Four individuals have been found. 
The colour of the elytra and apex of the hind body varies a little according to the 
maturity of the specimen. 
5. Placusa obliquata. 
Subdepressa, posterius acuminata, haud dense punctata, sat nitida, nigra, antennarum basi pedibusque testaceis, 
elytris quam prothorax vix longioribus, oblique testaceo-signatis ; antennis brevibus, subgracilibus, articulis 
°_10™ leviter transversis. 
Long. 2 millim. 
