246 P. CAMERON. HYMENOPTERA. 



and the hind tarsi black; wings hyaline, the costal nervure rufo-testaceous, the other nervures 

 and the costa and stigma black, the areolet in front half the width it is at the apex. The 

 areola roundly narrowed in front; from the end of the rounded basai part it becomes slightly, 

 gradually narrowed towards the apex, which is transverse; inside it is finely irregularly 

 striated; there are 2 outer areae, the inner smaller than the outer; they are irregularly 

 striated. Propleurae smooth; in the hollow below are 2 or 3 irregular stout keels. Mesopleurae 

 finely, distinctly, not very closely punctured, more strongly so above than below; the upper 

 half of the metapleurae is more strongly punctured, the lower coarsely irregularly reticulated. cf. 



Length 9 mm. 



Pleurae and legs densely covered with white pile. 



Cenocoelionidae. 

 Cenocoelius Hal. 



The 3 species in the collection do not agrée with the description of Cenocoelius, nor 

 with each. As, however, I am not certain if the différences in neuration, in the form of the 

 head, and of the abdominal pétiole are of spécifie, sub-generic or of generic value, I place 

 them ail in Haliday's genus, at the same time indicating the chief différences between them. 

 I may point out that in the figure of C. agricolator , L. in Szépligeti's Braconidae, Gen. Insect., 

 PL 1, f. 2, the transverse médian nervure is shown to be much farther removed from the 

 transverse basai than it is in the species I hâve described. 



A. Head behind roundly incised, clearly bordered, almost keeled ail round, transverse médian 

 nervure interstitial, the i st abdominal segment triangular, i. e., becoming gradually wider 

 from the base to the apex, its width there not half the length ; récurrent nervure interstitial 



albopilosellus. 



B. Head behind transverse, not margined, the i st abdominal segment longish, of equal width, 

 fully 3 times longer than wide, the récurrent nervure not interstitial nor the transverse médian 



annulicor?iis and latiannulatus. 



In the 2nd section the legs are longer than they are in the ist; the abdomen, too, is 

 placed higher up on the metanotum, owing to its having a longer apical slope, through the 

 metanotum not sloping from the base to the apex; in the other 2 species there is a slope, 

 so that it becomes narrowed towards the apex which is thus placed close to the hind coxae, 

 and not high above them as in albopilosellus. 



1. Cenocoelius annulicornis sp. n. 

 Bivak Island, September. 



Ferruginous, the head, mandibles, flagellum of antennae, except the io th to i5thjoints, 

 which are white, and the sheaths of ovipositor, black, the legs coloured like the body, the 

 hinder tarsi paler, their basai joint white, the hind tibiae black from shortly behind the middle 

 to the apex; wings light fuscous, paler at the base, the stigma and nervures black, the basai 

 abscissa of the radius about one fourth shorter than the 2 nd ; the 2 nd cubital cellule narrowed 

 in front, the 2"d transverse cubital nervure bent and bullated near the cubitus, as is also the 



