120 [October, 1S85. 



PAMPHILIUS, Latr. 

 Section I. 

 Anterior tibiae with a spine ; calcaria bifid, with a small tooth 

 below the apical one ; vertex without sutures, or with them very thin ; 

 the central region not being separated from the sides, but continuous 

 with them ; sub-costal nervure furcate beyond the middle ; transverse 

 brachial nervure obsolete. 



The group of eetthrocephalus. 



Body blue or yiolaceous, with the head in the ? red, wholly or in part ; wings 

 violaceous ; antennse long, 25 — 32-jointed, the 3rd joint as long as the three following 

 together. 



1. Pamphilius eettheocephalus, Linn. (pi. vi, f. 3, vol. ii). 



TJie group of stellatfs. 



Head and thorax black, spotted with yellow ; abdomen black at base and in 

 middle, the sides and apex reddish. Antennse as long as the body, 25 — 35-jointed, 

 3rd joint as long as the following two united. 



2. Pamphilius stellatus, Christ. 

 = pratensis, Pab., nemoralis, Thoms., ?, Linn. 

 I am not sure that this is nemoralis, Linn., and therefore, do 

 not adopt that name. In the Linnean collection, nemoralis is repre- 

 sented by Nematus fallax, Lep. ; it is not, I think, the original type, 

 but one probably inserted by Sir J. E. Smith. Zaddach refers 

 nemoralis, Lin., io punctata, P. 



Section" II. 

 Anterior tibiae without a spine : sutures on vertex deep, so that 

 the central part is distinctly separated from the sides, and more or less 

 from the front ; claws bifid ; transverse brachial nervure present. 



The group of flaviventris. 



Head, thorax, and abdomen black above, the sides, legs, and more or less of 

 face, yellow. Antennse 24-jointed, the 3rd joint as long as the three following 

 united ; sutures on vertex not very deep, or distinct ; head between antennse 

 projecting, bluntly keeled ; sub-costal nervure broken off beyond the transverse 

 costal nervure ; stigma black, wings usually with a smoky fascia in the middle. 



This is a very distinct group, and is, to some extent, intermediate 

 between i and ii, inasmuch as the sutures on vertex are not so well 

 developed as in the following groups, yet the lateral furrows are 

 clearly enough defined. The wedge-shaped form of the front is 

 peculiar, as is also the manner in which the sub-costal nervure is 

 broken off beyond the middle. 



