EUMENID.E. i6i 



the dilatation with two deep almost semicircular incisions, 

 leaving three distinct teeth, of which the basal is the 

 longest and narrowest, and points outwards, away from 

 the body, the apical is broad and somewhat rounded, and 

 points inwards, towards the body, the central one is some- 

 what truncate, the femora in the ? are simple, tibias 

 yellow, more or less stained with black inwardly towards 

 the apex, tarsi yellow in the $ , dusky in the ? . 



L. 13-14 mm. 



Not uncommon and generally distributed, makes its 

 nests in banks, and furnishes the mouth of its burrow with 

 a curved projecting tubular entrance of very beautiful 

 construction, composed of minute pellets of mud and very 

 fragile, which would apparently be destroyed by the 

 first heavy rain. 



0. melanocephalus, Gmel. — Very like spinipes, but 

 smaller, with the pubescence of the head and thorax less 

 dense, and almost white, and with the abdominal bauds 

 whitish or pale cream-coloured, not yellow, that of the 

 second segment considerably dilated at the sides ; other 

 distinguishing characters of the c? are the pale apical joints 

 of the antenna beneath, the form of the intermediate 

 femora, whose central tooth is pointed, and not widely 

 truncate, and the flatter, punctured second ventral seg- 

 ment of the abdomen, which bears a slight central tubercle. 

 The ? may be further distinguished from S2]inijjes by the 

 almost truncate apex of the clypeus and by the pale under- 

 side of the anteniJEB. 



L. 9-10 mm. 



Not a common species ; it nests in bramble stems. Deal ; 

 Hastings. Isle of Wight ; Bristol ; (Smith). Norfolk ; 

 {Bridi]man). Colchester; (Harwood). Seaton ; Wey- 

 mouth; Lulworth ; (Dale). 



0. laevipes, Shuck. — Like the two preceding in general 

 colour, with yellow abdominal bands as in .v/ztJii'/jes, but at 

 once recognizable by the simple intermediate femora and 



