1917.] 275 



cyanea^, and cticwbifina ; Osmia adiinca, roHtndafa, caemen- 

 tarid (standing as papaveris), sericans, and cornuiu ; 

 f Ainiiiobafes hi color. 



FossoHS : Priocnemis var/ab/I/s ; f Dolichurus cornicuhts ; Nj/sson 

 macidatus ; f Larru anathema ; Gorijfes {Arpaclas) lacvin ; 

 Ccrceris infen-upfa (Pz. nee Saunders!). 



CiiKVSins: f Eitehropiiii rjifaJraf/fs { = piopurafus) ; Holopyga 

 clilorocidea ; lied if clt rum clialijhacum; Clirysis caeruleipoi 

 (= c//j)rea). 



Of those marked thus f , not only the species, but tlie genus seems 

 to he non-Britisli ! 



It a])pears to me that the presence of the alcove specimens, and also 

 of Shuckard's non-British Oxyhelus spp. (viz. his nigripcs, hellicosns, 

 l4.-(/i(ffa/i(s, and nigroaeneiis) in the B. M. British Collection, can be 

 most satisfactorily explained by adopting the following hyjjothesis, viz. : — 



That most (and perhaps all) of them were collected b}^ Leach ab(nit 

 the year 1824 in South France or Savoy, and placed, through some mis- 

 take or accident (either by himself, or by Samonelle, who succeeded him 

 at Bloomsbury), in that part of the National Collection which should 

 have been, and was supposed to be, reserved for British sjiecimens, — 

 pi-obably, however, not (as Smith supposed) after Leach's death in 

 1836, but sutheiently long before that date for the facts to have l)een 

 forgotten when Shuckard visited the Museum to obtain materials for his 

 ** Essay," which is dated 1837. 



PHANACI8 CENTAUREAE FOkster, A CYNIPID (HYMENOPTERA) NEW 

 TO THE BRITISH FAUNA. 



BY RICHARD S. BAGNALL, F.L.S. 



Tliis afternoon I spent two or thi-ee hours in Ryho])c Dene with m^-- 

 friend ^h: H. S. Wallace. The large knapweed {Cenfaiirea scabiosa) 

 was m profusion, and after discovering a few examples of Ayhix roijen- 

 Jtoferi, I made a close search for other galls. Those of A. rofjenhofcri 

 (recorded in the October number of this Magazine) were exceptionally 

 local and rare. The leaf-pustules of the gall-mite, Eriophyes centaureaey 

 were somewhat scarce, and in one patch of the plant I discovered quite 

 a number of the leaf-vein swellings caused by the midge, Loewiola 

 centatireae — a species I had not previously seen on this particular 

 knapweed. M}' attention was then diverted to a clump of stunted 



