﻿1897. Entomol. Nachrichten. No. 5 u. 6. 91 



Head narrower thau the thorax, transverse behind, very 

 finely punctured, the front distinctly channelled; eyes very 

 slightly converging beneath; the ocelli in a triangle, the 

 hinder ones separated from the eyes by about the same 

 distance they are from each other; the clypeus projecting, 

 the apex rounded; the labrum longer than the clypeus, nar- 

 rowed gradually towards the apex, which is rounded. An- 

 tennae stout, longish; the third Joint a little longer than the 

 fourth. The prothorax somewhat shorter than the head, the 

 apex arcuate, the base abrupt. The scutellum narrowed 

 towards the apex. The median segment elongate, the top 

 flat, the apex sharply oblique, broadly incised, acutely in 

 the middle; the sides projecting into two stout teeth. Ab- 

 domen hardly ?o long as the head and thorax united, the 

 apex, viewed laterally, oblique and bearing a few black 

 hairs. Legs long, the tibiae without spines; the tarsi cili- 

 ated beneath and with some short spines, the long spur of 

 the bind tibiae reaching to the middle of the metatarsus; 

 the claws bifid. Wings shorter than the body, the third 

 cubital cellule at the top somewhat shorter than the distance 

 bounded by the second recurrent and the second transverse 

 cubital nervures; the recurrent nervures are received in the 

 middle of the- cellules, the second sharply elbowed. The 

 palpi are testaceous. 



Similar to N. apicalis^ but much larger, has the apex 

 of the abdomen black, and otherwise easily known by the 

 sharply incised apex of the median segment. iV. tyrannicus 

 from Brazil, closely resembles N. violaceipennis ; but it has 

 the median segment dififerently formed, and the labrum 

 truncated at the apex. 



17. Notocyphus plagiatus F. Sm. 



Notocyphns plagiatus Smith, Journal of Entomology I. p. 398. 



— plagiatus Cresson, Trans. Am. Entom. Soc. I. p. 134. 



— plagiatus P. Cameron, Biol. Centr.-Amer. Hymenopt. Vol. 11. 



Sept. 1893. p. 212. 



N. uiger, vertice vittaque thoracis lata longitudinali 

 rubris, alis nigro-fuscis violaceo submicantibus. 



Female. Length 1 inch. Black; the abdomen with a 

 fine changeable silky lustre; the head above the Insertion 

 of the antennae and a broad longitudinal stripe on the pro- 

 and mesothorax, the scutellum, and post- scutellum blood- 

 red; the labrum oblong, narrowed towards its anterior 

 margin, which is transverse; the wings very dark brown, 



