HYMENOPTERA. 235 



this use. Anthidium, Megachile, Osmia, Heriades, Che- 

 lostoma, Ceratina. 



Flower-bees or Panurgites. Larva and pupa, as far as 

 the British genera are concerned, unknown. Imago with 

 antennae twelve-jointed in the females, thirteen-jointed and 

 somewhat moniliform in the males ; maxilla with the blade 

 lanceolate and of moderate length ; the maxillary feelers of 

 equal length, and six-jointed ; labium with the ligula tri- 

 lobed, the central lobe about equal to the true lip in length, 

 the lateral lobes very short and acute ; the labial feelers 

 with four joints, varying but slightly in length from each 

 other ; the feelers exceed the ligula in length ; wings large, 

 flight slow ; insect inactive ; body rather stout ; black, 

 hairy. Inhabits in immense abundance Cichoraceous flow- 

 ers on heaths, &c., in autumn. Panurgus. 



Burrowing-bees or Andrenites. Larva inhabits a long 

 tortuous burrow, formed by its parent in the ground; a 

 small heap of earth, produced in excavating the burrow, 

 may almost invariably be observed at its mouth ; feeds 

 on a globular pellet of pollen, collected, moistened, and 

 kneaded into a consistent mass, by the parent. Pupa 

 changes in the earth. Imago with antenna twelve-jointed 

 in the female, thirteen-jointed and of much greater length 

 in the male, elbowed, particularly in 

 the females, at the second joint ; max- 

 illcs with the blade somewhat obtuse 

 and no longer than the maxillary 

 feeler, which is distinctly six-jointed; 

 labium with the ligula very short and 

 quadrilobed, the lateral lobes usually ] 

 equalling the internal ones in length ; hind tibia formed 

 for collecting pollen. Inhabits sunny banks. Two kinds 

 of individuals only, males and females. Colletes, Dasy- 

 poda, Andrena 9 Halictus, Sphecodes. 



