NORTHUMBERLAND AND DURHAM. 89 



Erichson, Gen. et Spec. Staph., 91G. 

 Coloured like T. foveola and Homalota Algce, and about the 

 size of the latter, black, rather shining, finely griseous pubes- 

 cent; head, thorax, and eljtra of the lurid black colour of 

 T. foveola, abdomen deeper black, more shining. Antenna3 

 longer than the head and thorax, slender, of nearly equal 

 thickness throughout, 2nd and 3rd joints equal, the rest shorten- 

 ing, sub-cylindric, the last of moderate length, not so long as the 

 two preceding, and scarcely thicker, bluntish, fuscous, the base 

 more dilute. Palpi fuscous. Head of the breadth of the thorax, 

 sub-quadrate, with the angles rounded, or sub-rotundate, in the 

 hinder part rather transverse, narrowed in front of the antennae, 

 very thickly and finely, though distinctly, punctate, the whole 

 front depressed, with a channel in the centre of the depression. 

 Thorax posteriorily one half narrower than the elytra, its length 

 about equal to its greatest breadth, broadest before the middle 

 towards the anterior angles, and distinctly narrowed towards the 

 base, the sides straight, the base slightly rounded, posterior angles 

 obtuse, apex obliquely truncate on each side, anterior angles 

 strongly rounded; sub-depressed, thickly and finely punctate, in 

 the male deeply and rather widely channelled throughout, in the 

 female more obsoletely, the channel ending in a fovea before the 

 base. Elytra scarcely longer than the thorax, sub-quadrate, sub- 

 depressed, very thickly and very finely punctate. Abdomen 

 linear, shining, very thickly but much less finely punctate, the 

 extreme apex piceous, and rather distinctly pubescent. Legs 

 pale fuscescent, the tibiae and tarsi more dilute. 



This differs from Erichson's description in the darker colour 

 of the legs and antennae, which, in his specimens were testaceous. 

 To explain the discrepancy, it is only necessary to suppose that, 

 like Homalota Algce, and I may add Philonthus Xantholoma, it 

 is liable to vary in this respect. 



One specimen taken at Marsden, under decaying sea-weed, 

 in company with T. foveola and Homalota A Igce. — J. H. 

 March. 



Specimens taken by Mr. Walker, at Plymouth, do not present 

 any difference. 



VOL. I. PT. I. M 



