Callicerns.'] STAPHYLiNiDiE. 61 



Male with the seventli segment of hind 1)ody furnislicJ with a strong 

 raised tubercle in the middle of its posterior margin. 



In sandpits, and also running on the mud by the side of small ditches and streams ; 

 occasionally found under hedge rubbish, bones, &c. ; usually considered rare, but it 

 is widely distributed ; Kent and Surrey and the London district generally, Ciiathani, 

 Lcwishani, Esher, Shirley, Reigate, Upnor, Dulwich, Colney Hatch, Chobhatn, 

 Wimbledon, Charlton, Weybridge, West Wickham ; Harwich ; Yardley and Kuowlc 

 near Birmingham ; Worcester ; Liverpool ; Northumberland district, very rare ; 

 Scotland, very rare. Forth and Clyde districts. 



TKABIZARISA, Thomson. 



This genus contains two very distinct European species, which are 

 found exclusively in burrows of Cossus ligniperda : besides the separa- 

 tion of the intermediate coxae, they are distinguished by having the hind 

 body more or less narrowed both at base and apex and so slightly ovate, 

 by the strongly transverse thorax of Avhich the posterior angles are blunt 

 and rounded, and by the very strongly transverse penultimate joints of the 

 antennae : in the latest European catalogue this and the succeeding genus 

 are placed between TTiiasophila and Microrjlossa ; in this way they are 

 widely separated from Homalota, as Aleocliara, Myrmedonia, Dinarda, 

 &c., are intercalated between them and tbe latter genus ; our two 

 species of Tliamiarcca certainly have the facies of true Aleocliarce ; Dr. 

 Sharp has lately described two or three other species from Central 

 America, which differ somewhat from our species in general appearance. 



T. cinnamomea, Grav, This is one of the largest species of the 

 genus, and is more like a Alyrmedonia or Aleocliara than a Homalota ; 

 broad and robust, cinnamon-brown, with the abdomen black and 

 shining, the hind margins of the segments being often brownish • 

 front parts dull ; head broad and short, much narrower than thorax, with 

 eyes prominent, finely and not closely punctured ; antennae pitchy, with 

 base testaceous, stout and rather shoit, third joint longer than second, 

 fourth rather small, fifth much broader than fourth, 5-10 strongly 

 transverse ; thorax twice as long as broad, with sides rounded, narrower 

 in front than behind, finely and rather closely punctured ; elytra 

 transverse, longer than thorax, finely and somewhat closely punctured ; 

 hind body rather ovate, narrowed in front and behind, but not very 

 noticeably, w-ith basal segments finely and sparingly punctured, the 

 others impunctate ; legs yellow or reddish yellow. L. i~i\ mm. 



Male with the seventh abdominal segment furnished on middle of disc 

 with a projecting longitudinal keel, 'lateral margin projecting on each 

 side as a short, pointed, rather curved spine ; between these two spines 

 the middle part of hind margin is much produced, and the apex in the 

 middle has a small notch " (Sharp) ; Mulsant and Rey in describing 

 these characters speak of the segment as armed wath four teeth, the 

 outer spiniform and a little curved inside, the inner tuberculiform, 



