l54 



THE KNTOMOIiOGIST S KICCORI). 



owing to ingested stamens. Seeminoly normal floNvers may contain 

 & single larva. 



Northumberland, Stockstield, July, 1922, 



Durham, Waldridge, August, 1922. 



Cecidomyida rii m , sp . 



On Saiiibiictoi nvjra ; flower strongly swollen and enlarged, with 

 tissues slightly thickened, containing a single flattish yellow larva 

 (? Aspho)idi/lia sp.). 



Northumberland, Stocksfield, July, 1922. Very local, but plentiful 

 where it occurred. 



('ecid())iiyidari(iii sp. 



On JlaiiiDiridus repeiis ; similar gall to that caused by Verriaia 

 raiinncuU but containing numerous yellow to orange -yellow larvae. 

 Yorks., Scarborough, June, 1922. 



Cecidoiiiyidannii sp. 



On Maple (Acer ccunpestrc) ; Houard, 4027. 



Small sharply defined depression about 1mm. in diameter on the 

 lower surface of the leaf (containing a broad white larva) with a 

 surrounding zone of discoloration affecting both surfaces. 



Yorks., plentiful in hedgesides at Bpital Beck on the York to Malton 

 Road, June, 1922. 



CecidoDiyidarinii sp. 



On Campanula ; inquiline in galls of I'eryisia frarhcHi Avith pale 

 yellowish-orange larvae. 



Northumberland, sandLiills at Seaton Sluice, August, 1921, where 

 the host-species (with its brick-red larvae) is plentiful. 



Cecid(iiiiyi(laiii))i sp. 

 In galls of Perrisia veronicae; with white larvae predaceous on the 

 larvae of that species. 



Yorks., common near Great Ayton. S(X)tland, Kelso. 

 (To he co)itiniied.) 



Races and Seasonal Polymorphism of the Grypocera and Rhopalo- 

 cera of Peninsular Italy. 



By ROGER VERITY, M.D., and ORAZIO QUERCI. 

 Introductory Remarks ky R. VEiUTY. 



Researches on the Lepidoptera have progressed remarkably in con- 

 nection with our knowledge of geographical and seasonal variation. 

 New races are continually being discovered in the various localities, more 

 or \esfi> definitely characterised, and these races are seen to constitute 

 groups proper to certain regions or to certain kinds of surroundings. 

 One thus perceives the instance of zones with features due, not only 

 to the presence of species peculiar to each, as it has long been known, 

 but also to the aspect of those common to more than one zone. 

 Peninsular Italy stands out very prominently as a well-defined zone, 

 better defined, in fact, than is usually the case, on account, no doubt, 



