1887.] . 125 



quite satisfied that tlie ^ of my varians must be transferred to helvola, 

 and that of my helvola to varians ; also that varians is not a very 

 variable species, and is easily distinguishable by the quadi'ate vertex 

 of the head and simple mandibles of the ^, and by the black-haired 

 face and abdomen of the ? . 



Having thus (at least, to my own satisfaction) disposed of varians, 

 fresh difficulties, and much greater ones, arise in attempting to find 

 distinctive characters v^^hereby to separate helvola ivorafucata. I have 

 very seldom met vrith either, but here again I am very glad to be able 

 to profit by Mr. Perkins' experience. He tabes helvola at Oxford, 

 and remarks that it does not appear till a fortnight or three weeks 

 after varians, this year appearing about the 25th May, and frequenting 

 May blossoms ; he has also taken it on Crepis. At the same time of 

 year he takes fucata, and from the series he has sent me for examina- 

 tion, I feel convinced that there are no characters to be relied upon 

 of specific value whereby to distinguish them apart ; the colour of the 

 pubescence on the legs and abdomen varies greatly, and Mr. Perkins 

 tells me that he has always taken the ^ (which I have described as 

 varians in my Synopsis, and which I now refer to helvola) in company 

 with typical/wc«;^rt, having on one occasion taken ^ and $ in the same 

 flower. 



I am, therefore, at present disposed to amend my synonymy of 

 these three forms thus — 



varians, Eossi, Thoms., &c. 



= helvola ^ , Smith, 1st ed., E. S., Synopsis. 

 helvola, Linn., Thoms., &c. 



= varians ^ , Smith, 1st ed., E. S., Synopsis. 



var. ^=fucata, Sm. 



clypearis, Nyl. 



St. Ann's, Mount Hermon, Woking : 

 September 29th, 1887. 



OCCUERENCE OP LOZOT^NIA (CACCECIA, HB.) DECUETANA, TR., 



IN NORFOLK. 



BY W. WAEREN, F.E.S. 



Towards the end of last month, I spent a few hours in King's 

 Lynn, and while looking over Mr. Atmore's late captures, observed a 

 pair of this species, with which he has it seems been acquainted four 

 or five years, but has passed it by as a pale form of Fodana (fid- 

 vana, Stn,). A ^ specimen, caught in a previous year and placed 



