306 STATES OF INSECTS. 



of his remarkable anterior tarsi, (which I shall afterwards 

 describe,) and these asperities, &c. in the upper surface 

 of his mate, as not to be displaced by the fluctuations of 

 that element, the reluctance of the coy female, or any 

 other slighter cause. 



In a moth called the ghost (Hepialus Humuli), the 

 posterior tibia of the male is densely bearded, but not of 

 the female 3 . — Some Hymenoptera, as Ammophila Kirb. 

 and Stigmus Jurine, have the upper lip of the male clothed 

 with silver pile, while that of the female is not so orna- 

 mented. The legs of some bees are distinguished in the 

 sexes by a difference in their clothing. That observable 

 in those of the hive-bee has been before noticed b . In 

 Andrena of Latreille c the posterior tibia of the female is 

 covered externally with a dense brush of hairs, for col- 

 lecting the pollen ; and the posterior legs at their base 

 have a curled lock of hair — which are not to be found in 

 the male d . In Dasypoda, Melecta, Anthophora, Centris, 

 Epicharis, &c. of the same author, the first joint of the 

 tarsus of the female, and in Xylocopa almost the w T hole 

 tarsus, is also similarly signalized from that of the other 

 sex. In Bombns, as in the hive-bee, the posterior tibiae 

 of the females and neuters are furnished with a basket of 

 hairs for carrying their pollen paste, which you will in 

 vain look for in the male e . The latter, however, in some 

 species of this tribe are distinguished from the former by 

 the longer hairs of their legs, but not in the posterior 

 ones. Thus, in Anthophora retusa the first joints of the 



a De Geer i. t. vn.f. 11. 



b See above, Vol. II. 125, Note b . 



c Melitta ** c. Kirby Mm. Ap. Angl. i. 140. 



d Ibid. t. iv. f. 10 a. b.f. 14. ' Ibid. t. xiii./. 20. a. 



