Hymrnoptera. 225 



the first i-adial ct'llnle, a ti'iai).<,'-nlai' oiio in the base of the 1st 

 cubital cellule, a long narrow one along the apex of the 2n(l, an 

 irregular one in the base of the discoidal, one along the apex of 

 the hind wings in front ; the stigma and nervures black. Base of 

 abdomen l)roadly rounded, not tubei-culate. Temples obliquely 

 narrowed : the occiput straight, oldique. 



This species is very close to D. ruficornis from whieii it may 

 l)e kiiowii l)y the clouds in tlie wings, l)y the temples and occiput 

 not heiiig rounded, h\ tlie bas(^ of alulomen l)eing rounded 

 broadly, not transverse and tnl)ei-culate in the middle. Tlie 

 punctuation is as in tlie common species just mentioned. 



PHOOTOTHYPID.E. 



HCELIONINI. 

 IvoeiKt, gen. nov. 



Antenr.a' 12-jointed, the pedicle twice longei- than broad at 

 the apex : it becomes gradnlally wider towards tln^ apex : the 

 IwSt joint of the Magellum is similarly formed, and fully twicn 

 longer than it is wide at tlu- a]tex : the othei- joints form a 

 stout clul). First segment of abdomen broader than long, clearly 

 separated, I'oundly convex above, the second in the centre not 

 much more than half the length of the Hrd : its base is bounded by 

 a roundly curved furrow, its sides being longer therefrom than 

 its centre : the 3rd is slightly shorter than the 4th : the uth 

 longer than the latter. Wings with a distinct submarginal vein : 

 a very shoi-t marginal and a short clavate stigmal vein. 



The eyes are oval : the malar space is nearly as long as them. 

 Temples wide. Mesonotum without furrows. Scutellums flat, not 

 spined : the apex of the scutellum bordered by a distinct keel. 

 Metanotum with longitudinal keels. Mesonotum and abdomen 

 closely longitudinally striated. Front furrowed below. Ocelli 

 minute. The antennse originate from a protuberance : the apex 

 of clyi)eus distinct, transverse sidt^s of metanotum broadly 

 rounded. 



