246 Journal of the Asiatic Society of Bengal. [N.S., XVII, 
brown ; vertex with a median pale yellow line extending on 
to clypeus. Clypeus convex, roughly pentagonal, anterior end 
acute, yellow, with a pale band on anterior margin and a 
median whitish line. Mandibles yellowish with four sharp 
denticulations. Eyes dark-brown; ocelli elongated, anterior 
vertical and lateral oblique. Antennae pale yellow, arched 
near eyes. Pronotum with thickened posterior margin. Meso- 
notum roughly pentagonal, anterior margin rounded ; a pale 
yellow median line, and an elongated median, yellowish-brown 
marking continued anteriorly to the lateral margins. 
Scutellum, post-scutellum, median segment, and abdomen 
yellowish ; paler below; median segment excavated medially. 
Legs pale yellow. folded close to the body ; tarsi of third pair 
that there are two central, black, uniform markings. The 
species differs markedly. in colouration especially, from any 
other species that we know, 
Ropalidia krishna sp. nov. 
An almost uniformly black species. 
Female: Head punctured. Clypeus with a few, very 
fine, scattered punctures ; pentagonal, convex ; posterior mar- 
gin slightly sinuate, apex produced into a blunt tooth; a 
yellow band on anterior margin, and ciliated with ferrugineous 
hairs ; sides covered with pale silvery pile. Mandibles with a 
yellow spot at base. Inter-antennal space raised, with an in- 
distinct grove from this to anterior ocellus ; eye-incisions not 
deep. Antennae uniformly blackish. 
Pronotum, mesonotum, scutellum, post-scutellum, and 
median segment closely punctured and granular ; an indistinct ; 
carina anteriorly on mesonotum ; a distinct carina on scutellum 
median segment divided by deep median groove ; each al 
convex. 
Petiole of abdomen, and second segment closely punctured 
and granular; remaining segments less so and covered with 
fine silvery pubescence. 
Legs uniformly black with very fine, pale pubescence. 
Forewings flavous; apical half with the exception of @ 
small spot at tip, and costal margin dark-brown. 
Le : m.; expanse: 22 mm. 
Habitat: Calcutta and environs (C. Dover, xi'20). 
Type in the collection of the Zoological Survey of India, 
Indian Museum, Calcutta. ‘ 
Its uniform black colour, except for the yellow marking 
on the clypeus, and its small size make this a distinct specie>- 



