llymenoptera from Nerthern India. 229 



flagellum at base and apex brownish beneath. Face closely, 

 the clypeus more sparsely punctured ; palpi pale yellow ; 

 labrum fringed with long fuscous hair. Vertex below the 

 ocelli closely transversely punctured ; front smooth and 

 shining. Mesonotum closely punctured. Scutellum not dis- 

 tinctly depressed at base and apex, its keels sharp and extending 

 to the base of the apical third and depressed on the inner 

 side ; scutellum bifoveate at the base. Basal area of meta- 

 notum large, aciculated, obliquely narrowed towards the 

 apex ; areola nearly as long as wide, the sides at the base 

 obliquely narrowed, its apex slightly roundly turned in- 

 wardly ; posterior median area smooth, of uniform width 

 and rounded at the base; the other areae closely punctured, 

 opaque; the spiracular and the tooth-bearing arcie more 

 strongly, irregularly, and not so closely striated, PropleurcC 

 above closely punctured, the apex broadly, in the middle 

 longitudinally striated ; the base with a broad yellow band, 

 broader than the upper one on the pronotum ; mesopleurse 

 closely punctured, the middle behind coarsely aciculated, the 

 metapleurse at the base aciculated, the rest closely obliquely 

 aciculated. Gastrocoeli shallow, striated; the base rufous, 

 striated. 



Algathia robust a, sp. n. 



Is very similar in form and coloration to A. maculicepa ; 

 may be known from it by the yellow scutellum, by the 

 strongly striated front and vertex, by tbe areola being dis- 

 tinctly defined and the posterior median area not at all, 

 and by the apex of the hind tibiae and the metatarsus being 

 black. 



Black ; face (except a small black mark above), clypeus, 

 mandibles, palpi, the inner orbits to beyond the hinder 

 ocelli, the lower outer orbits (narrowly above, broadly 

 below), palpi, a narrow line on the pronotum (not reaching 

 to the base), tegixlae, a line on the base of the propleurse, the 

 line dilated at the base, two short marks in the centre of the 

 mesonotum, scutellums, two broad lines on the sides of 

 median segment, the tubercles, lower part of mesopleurse 

 (the yellow dilated upAvards at the base), the base of meso- 

 sternum, the apices of the first to fourth abdominal segments, 

 and the apical entirely, yellow. Four front legs fulvous, 

 tinged with yellow, the apices of the tarsi black ; hinder 

 coxffi and basal joint of trochanters, apex of femora, of the 

 tibise and the metatarsus, black ; on the apex of the hind 

 coxie behind is a large yellow mark, narrowed behind. 

 AVings hyali)ic, thcncrvurcs and stigma pale testaceous ; the 



