HYMEiYOPTEEA-ACITLEATA. 393 



Prosopis, Fab. — The females of this genus generally 

 excavate little tunnels and cells in the stems of 

 bramble, wild rose, dock, &c. These they line 

 inside with a membrane somewhat after the 

 manner of the last genus. One species, however, 

 sometimes adopts crevices in old walls for its 

 nest cells. They are not usually gregarious in 

 their nidification. The food stored for their 

 young is semi-liquid honey, as they have prac- 

 tically no pollen collecting apparatus. They 

 have an enemy in a small Chalcid, which attacks 

 and devours their larvae. 



P. communis, Nyl. — annulata, Kirb. — Only noted as yet 

 from Hough End dough, near Manchester, 

 J.R.H 



P. signata, Panz. — Also only reported so far from the 

 banks of the Mersey, near Manchester, J.R.H. 



P. hyalinata, Sm. — armillatus, Nyl., Thorns. — Wallasey, 

 breeding in mortar of old wall. Taken on the 

 Cheshire coast, B.C. 



P. confusa, Nyl. — punctulatissima, Sm. $ . — 'Rock Ferry, 

 J.T.G., and Southport, J.R.H. 



P. pictipes, Nyl. — varijjes, Sm. — Recorded from the 

 banks of the Bollin, J.R.H. 



ACUTILINGUES. 



Bees with narrow pointed tongues quite different from 

 those of the last two genera, varying greatly in length. 



Andkenid^e. 



Halietus, Latr. — The burrows of the members of this genus 

 of solitary bees are excavated either in sandy 

 banks, in flat ground, or sometimes in the mortar 



