HYMEN0PTEEA-ACULEATA. 377 



burrows in sand, or sometimes in dead wood or 

 bramble stems. It is said to store up a Coccid 

 for its young. It has not vet been observed in 

 our district. 



Stigmus, Jur. — Nearly related to the last genus. Our one 

 British species is said to make its nest in holes 

 in dead wood, &c, and to provision its cells with 

 Aphides ; another account says it is parasitical. 

 Not recorded, so far, from Lancashire or Cheshire. 



Pemphredon, Latr. — The females burrow in dead tree 

 trunks, posts, &c, (P. lugubris), or in rose and 

 bramble stems (P. shuchardi and Jethifer). They 

 prey upon Aphides collected from roses and 

 other plants. 

 P. luguhris, Latr. — Well distributed in district. Storing 

 the Aphis Melano.vanthus salicis in its cells at 

 Ince, R.N. 

 P. shuchardi, Moraw. — unicolor. Thorns. — Also wide- 

 spread. 

 P. lethifer, Schuck.— Similarly abundant. 



Diodontus, Curt. — Excavates its nest in sandy banks (D. 

 minutus), or in mortar of walls and in bramble 

 stems (D. tristis). 

 D. minutus, Fab. — Only noted as yet from Bowden, B.C. 



Passaloecus, Shuck. — The females make their cells in dead 

 wood or in bramble steins. This genus has not 

 yet been observed in our district, though the 

 writer has taken P. insignis over the border in 

 North Wales. 



Mimesa, Shuck. — Females burrow in colonies in sandy 

 places, and occasionally in holes in dead wood 01 

 in straws (M. unicolor). They store up Ajihides 

 and allied insects for their young. A Chrysid is 

 said to be parasitical upon this genus. 



