1915.] ]^91 



Sub-Family 10. 



Tribe a. — For Leptocercus Thorns.... substittite PLATTCAMprs Schiodte. 



„ Cryptocampus Hto-. ... ,, Eudba Newm. 



,, Pteronus Jiir ,, Pteronidea Eohw. 



„ Croesus Leach „ Nematus Jur. 



„ Nematus Jur „ Nematinus Eohw. 



Tribe b. — „ Eriocampoides Knw... „ Caliboa O. Costa. 



Tribe c. — „ Phymatoceros Dhlb.... „ Phtmatoceba Dhlb. 



Tribe d. — ,, Poecilosoina Dhlb. ... ,, Empeia Lep. 



Ti-ibe/. — „ Sciopteryx Steph „ Sciaptertx Staph. 



„ Rhogogastera Knw. ... ,, ' Ehogogasteb Knw. 



„ Tenthredo L „ Tenthbbdella, Eohw. 



{To be contimied). 



TWO HEEMAPHEODITIC SPECIMENS OF ANDRENA 



(A. DORSATA K. AND A. ALBICANS L.). 



BY R. C. L. PERKINS, M.A., D.Sc. 



In this Magazine, Vol. XXV (1914), p. 218, I described two 

 hermaphroditic bees of the genus Andrena. One of these, A.flavipes 

 Panz. {A. fulvicrus K.) belonged to the class of hermaphrodites, which 

 are conspicuously asymmetrical bilaterally, one half being ^, the 

 other ? , at least to a large extent ; the other, A. himactdata K., to the 

 class in which the bilateral symmetry is little or not at all impaired. 



The two specimens now recorded belong to the same class as the 

 A. himactdata. 



A. DOKSATA. 



This example was captured shortly after the note above referred 

 to was written. The appearance is in general that of a female, the 

 head, thorax, and their appendages being all $ . The abdomen, except 

 that its general form is robust, as in the $ , is ^J in clothing and 

 structure. The 5th doi'sal segment, however, bears conspicuous 

 appressed hairs, forming an " anal fimbria " as in the 9 ! The sixth 

 ventral segment is ^ , the eighth, or rather its process, is well exposed, 

 and the extreme apices of the stipites of the genital armature itself 

 appear to be just visible. The specimen not having been pinned up 

 till long after the time of capture was not dissected. 



