198 [February, 



and shortly after, iu the course o£ repeated examinations, saw the torn 

 leaf with this gall, which, consequently, I conjectured was not fully 

 developed when gathered, and grew afterwards to maturity (as occurs 

 with other of our leaf -galls, under favourable circumstances). 



Should any of our gall-observers have noticed this species, it 

 would be very interesting to have any information on the subject, 

 which, I trust, will be my excuse for offering a note of what at present 

 seems an imperfect observation. 



Spring Grove, Isleworth : 

 December, 18V8. 



DESCRIPTION OF A. NEW SPECIES OF PL^SIOREHINA (CBTO- 



NIID^J, AND A NOTE ON AN APPAEENTLY NEW SPECIES OF 



CERATORRHINA, BOTH FEOM WEST AFEICA. 



BY GEOEGE LEWIS. 

 PL^SIOEEHHiTA "WaTKINSIANA, 11. S. 



Ohlonga, nitida, cerea ; thoracis marginihus, elytrorum fascia recta, 

 corpore suhtus, femorihusque obscuro-flavis. ^ et ^ . 



Hah. : Isrihu. Long. 13 lin. 



I have examined a series of this species, which is allied to P. cincta, 

 but is rather longer, of more bronze-green (like P. plana in this respect), 

 and differs especially in having the clypeus less clearly punctured, the 

 thorax smoother, with its sides thickly punctured (punctures elongate), 

 not densely strigose ; the scutellum is longer and smoother, the elytra 

 also have smoother striae, and are less strongly punctured about the 

 shoulders. The fascia is very much narrower than in P. cincta. 



I have named this species after Mr. W. Watkins, the well-known 

 dealer, from whom my specimens were obtained. 



I may also note that I have, from the same source, a series of a 

 Ceratorrhina, closely allied to C. aurata, but more parallel, with more 

 slender legs and tarsi, and the hind tarsi testaceous. I propose the 

 name of C. qemina for it provisionally, feeling sure it will prove a 

 distinct species, but at present I have not been able to examine any 

 number of C. aurata. 



Hab. : Mongo-ma-Lobah. 



I have deposited types of both species in the British Museum. 



3, Green Street, Grosvenor Square, W. : 

 \Oth January, 1879. 



