Manchester Memoirs, Vol. xliii. (1899), No. 3 25 



black. Wings hyaline, the stigma and nervures black ; 

 the first and third cubital transverse nervures are largely 

 bullated. Abdomen black above ; the base of the third 

 segment broadly fulvous, the fulvous band dilated at the 

 sides and middle ; the ventral segments broadly banded 

 with yellow ; the apical entirely yellow. 



The antennae are longer than usual for a Macropkya, 

 but on the whole it agrees better with that genus than with 

 P achyprotasis ; the hinder coxae and legs are also longer 

 than usual ; the coxae reach near to the apex of the 

 fifth abdominal segment. There is no cross nervure in 

 the lanceolate cellule, which is divided into two by a con- 

 siderably greater space than in M.foveifrons. The white 

 tip of the antennae is unusual for a Macropkya. 



Allantus MARGINICEPS, Sp. nov. 



Niger ; ore, abdominis basi, coxis, tT-ochanteribus tibiis- 

 que late fiavis, alis violaceo -Jumatis, stigmate sordide 

 testaceo. $ . 



Long. 16 mm. 



Antennae scarcely so long as the thorax; the six 

 apical joints distinctly thickened, almost bare. Head 

 black, the clypeus and labrum yellow, shining, impunctate, 

 sparsely covered with short, white hair. The front is 

 broadly and deeply hollowed, the hollow divided in two 

 by a transverse partition. The vertex in the middle 

 behind is raised, the raised part broader than long and 

 bounded by a deep furrow, which is, if anything, broader, 

 deeper, and more curved at the sides than at the apex ; 

 the ocelli on the outer side are bounded by a deep 

 furrow; there is a narrow one between the hinder pair, 

 and an oblique one at the side of the front pair behind. 

 The occiput is sharply margined above ; behind, at the 

 top, is a narrow furrow on the inner side of the margin. 



