BRITISH CISSID BEETLES. 



87 



C. nitidus Herbst. 



Common and widely distributed throughout Britain. 

 Ireland, common in Dublin and Belfast districts. 

 It is found in Scotland in company with C . jacquemarti Mell. r 

 and is sometimes confounded with that species in collections. 



C. jacquemarti Mell. 



Previously only recorded from Scotland, where it has been 

 taken freely at Rannoch (Turner, Ben re, and Donisthorpe), 

 Garve in Ross-shire (Dr. Joy). Near Brockenhurst, 1915 

 (Dr. Sharp), in company with C. nitidus Herbst. 



Not recorded from Ireland. 



C. bilamellatus Wood = bilamellatus Fowler (Europ. List 

 Heyden, Reitter & Weise, 1906) = minutus Blackburn. 



There is some considerable variation in size and development 

 of the males. Small specimens occur without the upright plates 

 on the thorax and clypeus, which might easily be mistaken for 

 females or for members of another species. 



Additional localities : Orpington, Kent (Pool), Richmond Park 

 (Donisthorpe & Perkins), High gate (Janson). 



It has occurred at Port Lincoln, South Australia, and was 

 named C. minutus by Blackburn, with whose type I have 

 compared British specimens. 



Exceeding abundant in Kent and Surrey, but is probably an 

 introduction like the following species. 



C. lineatosetosus, sp. n. 



Short and broad, unicolorous testaceous, shiny. Head smooth, 

 finely punctured and pubescent. Thorax finely punctured and 

 pubescent, slightly narrowed in front, front margin with two 

 indistinct teeth which merge with two other more distinct teeth 

 on the clypeus when viewed from behind. Elytra twice as long 

 as thorax, broad, closely punctured, especially near the scutellum, 

 and clothed with ten straight rows of erect setae. Legs and 

 antennaa entirely pale testaceous. 



Length 1| mm. 



This insect resembles the small undeveloped males of C. bila- 

 mellatus, which bear only slight traces of the plates on the thorax 

 and clypeus. It is not an indigenous species, but because of its 

 long residence in London and the possibility of its having become 

 established in our parks or woods, it is desirable that its origin 

 should be recorded with these notes on species found in Britain. 



Several specimens are in British collections, which I have 

 traced to the following source : — 



" 86. In a fungus from the South Sea Islands that had been 

 many years in Mus. Brit, (alive). From W. Carruthers, Esq., 

 Sept. 1866." 



I am indebted to Mr. J. N. Halbert of the National Museum, 



