64 Journal New York Entomological Society. [Voi. ix. 



The pollen used to store the cells is gathered upon the middle and 

 hind legs and upon the entire breast and base of abdomen of the in- 

 sect. The middle leg is seen at Fig. 3, Plate III, and is only a little 

 larger than the anterior ; the coxa however is much more developed 

 and the entire member is covered with hair, forming a fringe at the 

 sides, with points inward. The femur is grooved inferiorly for the 

 reception of the tibia. The tibia is quite a little dilated below the 

 middle, and at the tip is a single spur with toothed edges, shown at 

 Fig. 4 on Plate III. The claws are large and strongly toothed. The 

 posterior leg, shown at Fig. 5, Plate III, is much longer and stronger 

 than either of the others and also hairy throughout. In a general way 

 the tendency is to a fringing of long, stout compound hairs directed 

 inward to form a support to the pollen mass when gathered. There 

 is no specialized basket as in the case of the honey bee, and this species 

 makes no attempt to gather the collected pollen into one mass : when 

 it flies into its burrow it is yellow where there is a hair to hold the load. 

 The tibia has two dissimilar spurs at the tip, shown at Fig. 6, Plate 

 III. One of these is really pectinated or comb-toothed, forming four 

 four long dents, while the other has the edges narrowly serrated. 



The first tarsal joint is longer than all the others combined, is also 

 clothed with compound hairs and has the tip prolonged at the outer 

 angle into a soft, curved process. 



The general structure of the claws of the middle and posterior tarsi 

 is shown at "Fig. 8, Plate III. In general the claws are longer and 

 more slender, the teeth less prominent than on the middle pair. 

 Otherwise, and in the central structure between the claws the two pairs 

 are alike. 



Reference has been made to compound hairs. Of these there are 

 two types in the clothing of the insect. The general covering of the 

 functional parts of the insect is made up of palmate hairs : hairs with 

 a flat shank, divided into from three to ten flagell^e or whips, shown 

 at Fig. II, Plate III. In my Annual Report for 1895, to the New 

 Jersey Agricultural College Experiment Station, I gave on a half-tone 

 plate, Fig. 47, a reproduction from a micro-photograph showing the 

 compound hair of Agepostemon and Atigoch/ora ; both being of the 

 same general type. Not all the hair is of this kind : the longer hair 

 at the edge of the tibise has a straight shank with many shorter or 

 longer branches ; but it is not palmate. I have already stated that 

 there is no specialized pollen basket and when gathering pollen the 



