\Q [January, 



much variation in the ra])iditv of tlie feeding up of the larvce, so tliat 

 moths may be ou the wing from midsummer till wiuter. In the south 

 of France, however, 0. antiqaa appears to be double-brooded. In 

 England, if this ever occurs, it must be exceptionally. Mr. Merrifield 

 found the single- brooded habit could be overcome in temperature 

 experiments. 



Botiila, Ecin;<ato : 

 December 6th, 1912. 



THE RACES OF ANDRENA ROSjE, Panz. 

 BV K. C. L. I'ERKIXS, M..\., U.Sc, F.E.S. 



In the Deutscli. Ent. Zeitschr. for 1911. p. 457, there is an 

 interesting paper on the races of Andrena rosm, Panz., by 

 Herr J. D. Alfken, and as he received British material from the late 

 Edward Saunders and the Rev. F. D. Morice, his conclusions are of 

 interest to the students of British bees. These conclusions are given 

 in a dicliotomous table, which, translated, is as follows : — 



Females. 



1. Ahdoim-n and tliorax above ahiiost bare. 



Abdomen and thorax aljove more or less densely hairy 3 



2. Vertex with black or dark lirown hairs ; face below the antennae with dark 



brown hairs ; anal fringe dark ; anal plate (pygidium) closely and strongly 



granulate A. teutonica, n. st. 



\'ertex with gi-ey hairs, intermixed with dark hairs ; face below tlie antenna} 

 with yellowish brown hairs; anal fringe blackish-brown, overlaid with 

 yellow liairs ; pygidial area hardly perceptibly granvdate... 



A. rosse, Panz. (= A. austriaca, Schm. nee Panz.) 



3. Alidomen more or less red 4 



Abdomen black, only the hind-margin of the segments transparently 



testaceous ^. trimmerana, K. 



4. Face below the antenna; with l)rownish-black hairs... 



A. spinigera, K. {? A. lomhardica, Schm.) 

 Face below the antennte with dusky yellow-brown hairs... 



A. aiujlica, st. n. {? A. lomhardica, Sclun.) 



Males. 



1. Abdomen above almost hare -? 



Abdomen, at least in the middle of the second segment, with a tuft of liairs 



2. Cheeks with a long dark spine ; face mostly with purely dark liairs... 



A. tciitonica, st. n, 



