HYMENOPTERA. 257 



or in the fields, in which they place this paste along with an egg ; they 

 then close the aperture with earth. 



In some the middle division of the ligula is enlarged at its extre- 

 mity, almost cordiform, and folded when at rest. 



Hyu'eus, Fab. Prosopis, Jur. 



Sometimes the body is glabrous, and the second and third joints of 

 tlie antennre are almost of the same length. The superior wings pre- 

 sent but two complete cul)ital cells. 1'hese Insects, being destitute of 

 hairs, collect no poUeu, and ajjjjcar to deposit their ova in the nests of 

 other Hymenoptera of this family. They arc the Hyl.'eus proper of 

 Latreille and Fabricius *. 



The others have a hairy body, and the third joint of the antennae 

 longer than the second. The superior wings have three complete cu- 

 bital cells. The females collect their stores from flowers. I distinguish 

 them by the generic name of 



COLLETiiS, Lat. 

 Such, for instance, is the 



C. glulhieux ; Apis succincla, L; or the Abeille dont le nid est 

 fait d'especoh- de membranes sorjeuses of Reaumur, Insect., VI, xii. 

 Small ; black, with whitish hairs ; those on the thorax, russet ; 

 abdomen ovoid, and the posterior margin of its annuli covered 

 Avith a white down, forming bands. The male — Evodia calen- 

 daruiii, Panz. — has longer antennae. The female makes a cy- 

 lindrical hole in the ground, and smears its parietcs with a 

 gummy fluid, which may be compared to the viscid and glossy 

 slime of a Snail. In this she piles a series of cells composed of 

 the same material, resembling a thimble in shape, each containing 

 an egg and some of the paste before mentioned ■\. 

 The other Andrenetee are distinguished from the preceding ones 

 by the lanceolate figure of the liguia. 



In some this ligula is folded against the superior side of its sheath, 

 as in Anijrena J, and Dasypoda, Lat. §. The first joint of the pos- 

 terior tarsi of the females of the latter subgenus is very long, and co- 

 vered with long liairs in the manner of a little feather. The superior 

 wings in these two subgenera have but two cubital cells. 



A.Jlcsice, Panz., Faun. Insect. Germ. LXXXV, 1.5 ; Andrene 

 dex viurs, Reaum., Insect., VI, vi, viii, 2. Six lines in length, 

 and with white hairs on the head, thorax, lateral margins of the 

 last abdominal annuli, and legs; abdomen bluish-black; wings 

 black, with a tinge of violet. 



The female excavates holes in tenacious sand, at the bottom of 



* Lat., Gen. Crust, et Insect., IV, p. 149. 



tLat., Ibid. 



I Lat., Gener. Crust, et Insect., IV, 1.50. The species which in my Gener. 

 Crust, et Insect., p. 151, I have called lutjopus, and three others from the Cape of 

 Good Hope, being removed from the Ordinary Andrena; by the number of their com- 

 plete cubital cells, which is but two instead of three, as well as by some other cha- 

 racters, have been erected by MM. Lcpeletier and Serville — Encyc. Miithod. into 



anew genus, to which they have given the name of Scrapter. 



§ Lat., Ibid. 



