42 STAPHYLINID^. 



nearest to 0. umhrata, from which it may be separated by being 

 smaller and having the tarsi a little shorter and thicker, the first joint 

 being only as long as the two following, whereas in 0. umbrata it is 

 rather longer than the three following taken together. From 0. nigi'ina 

 it may be known by its longer antennae and more strongly notched 

 elytra. The species is widely distributed in France and Central 

 Europe. 



OCYUSA, Kraatz. 



O. (Cousya) nigrata. Fairm. et Lab. Faun. Ent. Fr., i. 380, 10. 

 Shining black, very finely and sparingly pubescent ; head almost as 

 broad as thorax, rather thickly punctured on the vertex ; antennae 

 black or brown with the base pitchy red, gradually thickened, a little 

 shorter than the head and thorax together, the first joint rather long 

 and somewhat thickened, the second almost as long as the first, and 

 the third scarcely half as long as the second, four to ten gradually 

 thickened, more or less transverse, the last as long as the two preceding, 

 subovate, very obtusely acuminate at the apex ; thorax almost square, 

 slightly rounded at the sides, rather convex, with a shallow depression 

 in front of the scutellum, finely and rather thickly punctured ; elytra 

 longer than thorax, slightly transverse, rather finely and thickly 

 punctured, with the punctuation somewhat oblique and evidently 

 stronger than that of the thorax ; hind body parallel, with less close 

 punctuation, shiny, the three first segments with rather strong impres- 

 sions at the base ; femora brown, knees, tibite and tarsi light red. 

 L. 3 mm. 



One specimen taken by Mr. Claude Morley on June 2, 1900, in an 

 unoccupied martin's hole in the side of a sand-pit at Levington, Sufiblk, 

 a place about half-way between Ipswich and Felixstowe : recorded 

 as British by Mr. E. A. Nevvbery (Ent. Mo. Mag. xl. (2 Ser. xv.), 

 1904, 251). The species has a wide range in Central and Southern 

 Europe. 



O. defecta, Muls. et Rey. Brevipennes Aleochariens, 427. Elon- 

 gate, slightly convex, very finely and rather scantily pubescent, shining 

 black, with the mouth and the base of the antennae brownish, and the 

 knees and tarsi pitchy testaceous; head punctured; antennae rather 

 short, with the third joint a little shorter than the second, penultimate 

 joints rather strongly transverse ; thorax slightly transverse, scarcely 

 narrowed in front or rounded at the sides, evidently nariower than the 

 elytra, not deeply and rather closely punctured ; elytra almost quad- 

 rate, evidently longer than the thorax, somewhat depressed, finely and 

 rather thickly punctured ; hind body sub-parallel, very finely, not 

 deeply, and rather thickly punctured, the punctuation being less on the 

 fifth segment. L. 2^2}-,- mm. 



Introduced as Britis"h by Mr. E. A. Newbery (Ent. Mo. Mag. xlv. 

 (2 Ser. XX.) 1909, 150) on a single specimen taken by Mr. S. G. Rendel 

 among dead leaves in a dry ditch near Tiverton, Devon, in November 



