NEW BRITISH SPECIES, ETC., IX 1861-62. 89 



61. Omalium nigriceps, Kiesenw., Ann. Soc. Ent. Fr. 



(1851), p. 435. 



Comes next to ccesum in our lists, from whicK its gene- 

 rally rufo-testaceous colour and black head at once distin- 

 guish it ; nevertheless, the description given by Kiesenwetter 

 is very vague. 



Taken by Mr. M. Young, also by Mr. Waterhouse. 



62. MiCROPEPLUS MARGARITA, Jacq. du Val, Gen. Col. 



d'Eur. ii. 82, id. in Cat. Staph, {loc. cH.), p. 83; 

 H. S. Gorham, Proc. Ent. Soc, 7th .Ian. 1861, Zool. 

 7374 (1861); Wat. Cat. p. 108 (1861). 

 Var. fulvusy Erichs. Gen. et Spec. Staph. 912, 3. 



Mr. Gorham has pointed out the difference between this 

 species and M. staphyUnokles, Marsh., with which it has 

 hitherto been mixed in collections. It may be known by its 

 longer elyti-a and more rounded sides, and the inconspicuous 

 tubercle of the fourth segment of the abdomen, which in 

 atapliylinokles assumes the form of an acute prominent crest ; 

 in the male of margaritce also the head is more acutely 

 toothed. 



\i appears more abundant than M. staj)hylinoides. 



63. Choleva grandicollis, Erichs., Kaf. Brand, i. 237. 



tristi><j var. 2, (Murray) Wat. Cat. p. 34. 



This conspicuous insect is separated in the continental lists 

 as a distinct species, and suiely with propriety. See remarks 

 of Dr. Kraatz in Berlin Ent. Zeits. (1858), pp. 30, 31. 



It may at once be distinguished by the great width of its 

 thorax behind. 



