FAMILI^. {Jpis. **. c. 2. y.) 177 



Maris Antenyice filiformes. Am incurvb, saeplus 

 dentato. Ventre anum versus cavitate notando. 



The third subdivision of this section, is distin- 

 guished by a peculiarity which exists in no other 

 Hymenopterous insects that I have examined ; the 

 interior palpi of the species that belong to it con- 

 sist only of a single joint (/"). Their body is very 

 long, slender, and cylindrical; the venter of the 

 males, near the anus, is remarkable for a singular 

 cavity, usually covered with down of a pale colour 

 and resembling satin, to answer which, at its base, 

 there is either a kind of horn, or a protuberance {g). 

 These insects, when asleep, roll themselves up 

 something like Oniscus Armadillo^ the horn or 

 protuberance fitting into the anal cavity: they 

 nidificate in posts and rails. The males usually 

 take their luxurious repose in the lap of a flower : 

 that sex of -^. Campanulanwi, selects for this pur- 

 pose the bells of the different species of Campanula, 

 which the female also frequents for the sake of the 

 honey. Hylaus Jlorisomnis, maxillosus, and trun- 

 corumiji), figured by Panzer, belong to this sub- 

 division. 



* *. c. 2. 5. (?) 

 H. F. A. Corpus cylindricum, villosum, saepe 

 hirsutum; Capite trunci fere latitudine, subglo- 



(/) Tab. 9. y. fig. 5. I. (g) Ibid, fig. 11. 13. a. 



(/i) Fn. Germ. Init. n. 46. t. 13. n. 53. t. 17. n. 64. t. 15. 

 (i) Tab. 10. **. c. 2. S. Andrena, Apis, Fab. Aheilles via- 

 cnnnes, Eeaum. 



N boso J 



