634 Mr. M. Cameron on new Staphylinide 
before scutellum, and a median impressed line; puncturation 
fine and rather close, finely pubescent. Elytra distinctly 
longer and a little broader than the thorax, slightly trans- 
verse, closely and rather finely punctured and pubescent. 
Abdomen finely and moderately closely punctured, and 
pubescent in front, more sparingly behind. 
&. Eighth dorsal segment with six sharp spines, the lateral 
curved, the rest centrally placed, short and straight (the 
median and external sometimes united at the bases), and 
separated from the lateral ones by a semicircular notch. 
Grenada (H. H. Smith). Type in the British Museum. 
74. Silusa diversicollis, sp. n. 
(Fauvel, zz ltt.) 
Rufous, shining, the elytra sometimes more or less infus- 
cate ; antenne stout, the first three joints and the last bright 
testaceous ; legs testaceous. 
Length 2 mm. 
Head red, broad, scarcely perceptibly and sparingly punc- 
tured and pubescent. Antenne stout, the third joint shorter 
than the second, the fourth slightly longer than broad, the 
fifth to the tenth transverse, gradually increasing in breadth, 
the penultimate fully twice as broad as long, the eleventh 
oval-oblong, longer than the two preceding together. 
Thorax twice as broad as long, the sides rounded and more 
narrowed behind than in front, posterior angles completely 
rounded ; finely and obsoletely but rather closely punctured 
and pubescent. Elytra broader than, and half as long again 
as, the thorax, transverse, finely but more distinctly punctured 
than the thorax and equally closely. Abdomen gradually 
narrowed, finely and sparingly punctured; pubescence yellow, 
rather long and stiff. 
I am unable to find any external sexual distinction in this 
species. 
St. Vincent, Grenada (//, H, Smith). Type in the British 
Museum. 
75. Silusa tenella, sp. n. 
(Fauvel, zx ditt.) 
Narrow, rufous, not very shining; the first two and the 
last joints of the antennze testaceous; legs testaceous. 
Length 1:5 mm. 
A small slender red species with nearly parallel abdomen, 
