04 COLEOPTERA. 



In the male, the hinder tibiag do not possess the tooth-like 

 elevation on the inner side, and the sixth segment of the ab- 

 domen beneath is not polished, the tubercles to be seen in 

 the corresponding part of S. afer being wanting; the de- 

 pression on the fifth segment is not nearly so broad, deep or 

 polished, the elevated ridges at the apex being much less 

 developed ; the depression on the fourth segment is narrower 

 (especially behind), but more defined and polished, and there 

 are no long yellow hairs on the ridges of this or the fifth seg- 

 ment ; there is also only a very small smooth depression in the 

 middle of the margin of the third segment. The metasternum 

 is depressed, more closely and finely punctured than in S. 

 ate?'. 



Taken by myself some years ago in a wet, marshy place 

 on Wimbledon Common ; also in the same locality by Mr. 

 E. Shepherd, Mr. Sharp and Dr. Power, and by Mr. Sharp 

 at Hampstead. 



17. Stexus Rogeri, Kraatz, Ins. Deutsch. ii. 793, 66; 

 G. R. Crotch, Cat. Brit. Col.; E. C. Rye, Ent. M. 

 Mag. vol. i. 60. 

 providus, Wat. Cat. (nee Erichson.) 



The insect hitherto known in England as S. providus 

 must be referred to this species. It is smaller, more shining 

 and more coarsely punctured than S. speculator^ and has 

 shorter elytra ; the coxag also are pitchy, and the trochanters 

 fusco-testaceous. In the male, the abdomen is adorned 

 beneath with two rows of yellow curls, turned inwards. 



I am not aware of the existence, as British, of the true 

 S. jjrovidus, which, fi-om Erichson's description, appears to 

 be a dull insect, with the elytra as long as in specuJato?', from 

 which it diff'ers in having the head less hollo vv-ed, the thorax 

 more distinctly channelled, the antennce black, the apical 



