636 Mr. M. Cameron on new Staphylinidee 
77. Placusa heterogaster, sp. n. 
(Fauvel, an litt.) 
Narrow, elongate, black or pitchy, shining; elytra 
brownish-testaceous, the abdomen more or less lighter at the 
base. Thorax with the sides evenly rounded, a little narrower 
at the base than the elytra at the shoulders, not more 
narrowed in front than behind, the base not sinuate. First 
three joints of the anteunz and the legs testaceous. 
Length 1°5-1°8 mm. 
Smaller than the preceding species, more shining, and the 
thorax differeutly formed. Head finely and pretty closely 
punctured, finely pubescent. Antenne as in the preceding 
species. Thorax tran-verse, one-third as broad again as long, 
the posterior angles rounded, very finely and pretty closely 
punctured and pubescent. Elytra as long as but broader 
than the thorax, transverse, very finely and pretty closely 
punctured and pubescent. Abdomen very slightly narrowed 
behind, very finely and pretty closely punctured and pubes- 
cent, scarcely more sparingly punctured behind than im 
front, 
6. Highth dorsal segment narrowed, the middle of the 
posterior margin with a shallow emargination. 
St. Vincent (/7. HA. Smith). Type in the British Museum. 
78. Placusa analis, sp. n. 
(Fauvel, cw litt.) 
Narrow, elongate, black or pitchy, greasy-shining ; elytra 
dark, the abdomen with base aud apex rufo-testaceous. 
Thorax with the sides evenly rounded, a little narrower at the 
base than the elytra at the shoulders, not more narrowed in 
front than behind, the base not sinuate. First three joints 
of the antennze and the legs testaceons. 
Length 1°5-1°8 mm. 
Size and build of the preceding, but differently coloured 
and less shining, the thorax usually broadly impressed on the 
disc, and with different @-characters. 
dg. Seventh dorsai segment with a minute tubercle on 
either side of the middle line in front of the posterior 
margin; eighth with a larger pointed tubercle on either side 
of the middle line in front of the posterior margin which is 
furnished with three stout teeth of equal length, the lateral 
ones more robust than the median one. 
St. Vincent (H. H. Smith). Typein the British Museum. 
