British Hymenoptera. 243 



the entire ventral valve of the 8th segment in the (? , 

 will distinguish it readily ; at the same time I should 

 not be surprij^ed to find it some day admitted as the 

 autumn brood of Trimmerana; (for its affinities with 

 Jiorea see that species). 



I have reverted to the name rosa for this species, 

 as Panzer's figure of anstriaca appears to be in no 

 way like the ^ here described, but to be probably that 

 of Jiorea. 



10. Andrena Trimmerana, Kirby. 



Kirby, Mon. Ap. Angl. ii., p. 116 ; Smith, Cat. Brit. 

 Hym., 2nd ed., p. 46. 



Var. spinifjera, Kirby, Smith, &c. = eximia, Smith. 

 Stylopized var. =^picicornis, Kirby, Smith, &c. = pi- 

 cipes, Kirby, Smith, &c. ? 



Thorax clothed with brown hairs ; face in the ^ either 

 with black or brown hairs, in the ? with brown ; cheeks 

 at the base of the mandibles in the 3' often spinose ; base 

 of the abdomen in either sex sometimes more or less 

 red, apical dorsal valve of $ closely punctured, its 

 margins slightly reflexed ; apical ventral valve of ^ 

 deeply emarginate ; scopae of 2 brown-black, pale be- 

 neath. 



(? . Black ; face densely clothed with brown hairs 

 {Trimmerana true), or with longer black hairs (spinigera) ; 

 cheeks at the base of the mandibles merely angulated 

 (Trimmerana), or produced into a long spine (spinigera). 

 Antennae reaching to the apex of the metathorax, the 

 joints arcuate. Mesothorax finely punctured, clothed 

 with brown hairs ; metathorax with its basal area finely 

 rugose at the base. Abdomen very finely punctured, and 

 clothed with long hairs, especially on the disk of the 

 1st and 2nd segments ; apex of each segment narrowly 

 impressed and testaceous, in some varieties with the 

 whole of the 2nd, and part of the 1st and 3rd, red ; 

 beneath clothed with long hairs, apex of each segment 

 ciliated, apex of the 8th largely and deeply emarginate. 

 Legs clothed with brownish hairs. 



? . Head and thorax clothed with brown hairs, sculp- 

 tured, &c., much as in the <? , but without any spine on 

 the cheek. Abdomen black, with the extreme apices of 

 the segments piceous (Trimmerana), or with 1st, 2nd, 

 and 3rd segments mere or less red (spinigera) ; each 



