246 Mr. G. R. Waterhouse's Descrlpiions of the 



thorax and fourth and fifth segments of the abdomen pitchy : 

 thorax with two rows of punctures, and two shallow longitudinal 

 depressions following the rows of punctures : elytra thickly and 

 finely rugulose-punctate. 



Male with a row of four short ridges at the apex of the 6th 

 abdominal segment; the 7th segment terminated by four slender 

 processes, the inner pair sub-approximated, the outer pair longer, 

 and incurved at the apex. 



Rather larger than G. nana, and proportionately rather broader : 

 head with the punctures more numerous, but not so strong : an- 

 tennae rather longer ; the intermediate joints less strongly trans- 

 verse : thorax with the fore and aft diameter greater, the sides 

 scarcely rounded, being nearly parallel, excepting near the anterior 

 angle, where they are gradually bent inwards ; the anterior angles 

 somewhat obtuse, the posterior margin boldly rounded, distinctly 

 margined ; the sides less distinctly margined ; the surface rather 

 convex, and, like that of the head, alutaceous : the disc with two 

 shallow longitudinal impressions, in which the discoidal rows of 

 punctures are placed ; these are about six in number in each row, 

 and vary in size, but in each row there is one puncture always 

 larger than the others, and this is on the basal third of the thorax. 

 Elytra thickly and very finely punctured throughout, slightly 

 rugulose, and with a few scattered, indistinct, larger punctures : 

 abdomen smooth, or, at least, with excessively minute and indis- 

 tinct punctures. 



The male characters correspond very closely with those of 

 G. nana, but the slender processes, projecting from the 7th seg- 

 ment, are more elongated, and the middle pair are more distinctly 

 separated. 



The comparatively large size, broader form, and much more 

 thickly punctured elytra, serve to distinguish this species from the 

 G. fasciata. 



I have met with this species at Weybridge, in fungi, in the 

 month of September ; and at Hawkhurst, in Kent, in the spring. 



5. G. nana. 



Staphylinus nanus, Paykul, Faun. Suec. iii. 408, 52. 

 Gyrophcena nana, Mannerh. Brachelytr. 74, 2. 



Erichs. Kaf. Mark Brand. 367, 2 ; Gen. 



et Sp. Staph. 184, 3. 



Fairm. et Lab. Faun. Franc, pt. 3, 



p. 456, 4, 



Kraatz, Iiis. Deutschl. Staphyl. 357, 6. 



Black ; elytra (excepting the region of the posterior outer 



