254 ICHXEUMONIDJE. 



178. Banclms armillatns, sp. n. 



o. A small, black and yellow species, with fulvous femora. 

 Head not very narrow behind the prominent and internally hardly 

 einarginate eyes, stramineous, with the occiput broadly black above, 

 and the frons and vertex bearing a common quadrate black spot ; 

 face nitidulous, very finely punctate and discrete from the apically 

 margined clypeus by a semicircular sulcus ; cheeks aubobsolete ; ex- 

 treme apices of the broad mandibles black ; palpi normal. Antennae 

 black, filiform and as long as body, with the scape and two basal 

 flagellar joints flavescent beneath, and the twelfth to twenty-second 

 joints clear white. Thorax black and somewhat shining ; meso- 

 notum with discal stripes and a hamate mark on either side in front, 

 prothorax entirely, mesosternum and broad marks on their pleurae, 

 callosities before and beneath all the radices, and the apical half 

 of the metathorax except a dot at its extreme apex, flavous ; 

 metanotuin finely trans-aciculate throughout, its spiracles small, 

 parallel-sided and very short, with apophyses obsolete. Scutellum 

 glabrous, flavous and simply convex ; postscutellnm, and the 

 apical lateral carinae of both, concolorous. Abdomen glabrous and 

 strongly nitidulous, apically pubescent, hardly longer than head 

 and thorax, narrower than the latter and apically compressed ; 

 black, with the apical half of all the segments broadly flavous, as 

 is also the subcanaliculate base of the apically unimpressed first 

 segment ; ventral fold strong, valvulae black and exserted. Legs 

 normal and flavous, with the tibiae distinctly spiuose ; hind coxae 

 externally, their trochanters and tibiae basally, apices of the latter 

 broadly, and of their fulvous femora narrowly, black ; tarsi nigre- 

 scent, the hind ones (except their apical joint) pure white, as are 

 their calcaria which extend to centre of metatarsi. Wings clear 

 hyaline, radix and tegulae flavous, costa nigrescent, stigma cen- 

 trally ferruginous ; areolet distinctly small, transversely trian- 

 gular, subpetiolate, and emitting the recurrent nervure harcllv 

 before its apex ; radial cell sublanceolate, its nervure apically 

 quite straight and basally curved ; first recurrent of hind wing 

 opposite, and emitting the nervellus but slightly above its junction 

 with the posterior nervure. 



Length 7 millim. 



NICOBAB ISLANDS (Col. Bingliam). 



Type in the British Museum. 



The small and distinctly triangular areolet, obsolete apophyses, 

 very short spiracles and hardly emarginate eyes are somewhat in- 

 congruous in this genus, to which, however, this species is more 

 closely related than any other yet erected ; and I do not consider 

 these minor distinctions worthy of generic rank. 



Described from a single specimen. 



