230 MR. p. CAMEKON ON [Mar. 19, 



Mandibles black, browuish at the base : the apical tooth is tri- 

 angular, blunt, and is clearly separated ; there is a short triangular 

 incision between it and the slightly obhque inner part. The eyes 

 slightly converge above. The transverse striation on the meso- 

 notum is coarse ; the scutelluin is transversely striated, the base 

 not quite so strongly as the I'est. The base of the median segment 

 is obliquely depressed ; its centre is broadly furrowed ; the lower 

 half of the metapleura is strongly punctured. Legs : the tarsi 

 are closely spinose ; the anterior are more than twice the length 

 of the tibiae, which are narrowed at the base ; the hinder are bent 

 distinctly there and dilated before the apex. The cloud in the 

 wings extends from the costa to the middle of the transverse 

 cubital nervure ; it originates at the end of the stigma ; the 

 areolet is oblique, its pedicle is not quite so long as the basal 

 fork of the nervure. 



Ehtssa teidentata, sp. nov. 



Nigra, late jlavo-maculata ; segmento mecliali jlavo ; alis hyalinis, 

 macula suhstigmatali nigro-ccerulea j pe<:?i6r«5 riijis, tarsis 

 fuscis. 5 . 



Long. 18 ; terehra 23 mm. 



Antennae black ; the scape and base of the flagellum rufous ; 

 there is a narrow white ring shortly beyond the middle of the 

 flagellum. The face, the inner orbits to the lower ocellus, the 

 outer orbits entirely, and the clypeus are pale yellow ; the face 

 below the antennse is punctured and has a shallow longitudinal 

 furrow there ; over the clypeus is a distinct furrow ending on 

 either side in a fovea ; the apex of the clypeus is transverse and 

 ends in three short blunt teeth. Mandibles black ; the two apical 

 teeth short, subequal. Occiput yellowish, suifused with rufous. 

 Prothorax yellow, rufous on the lower side. Mesonotum black ; 

 the sides next the tegulse rufous, in the centre are two yellow 

 lines. Scutellum and scutellar keels yellow ; the apex of the 

 scutellum rufous and finely transversely striated ; the scutellum 

 distinctly punctured. Postscutellum smooth, yellow. The base 

 of the median segment black, of its pleurae dark rufous ; the 

 mesopleurse yellowish below the fore wings, rufous yellow below 

 the hinder wings and at the apex below. Metapleurae closely 

 punctured, most strongly on the lower half. Legs rufous ; the 

 anterior pallid yellowish in front, especially the tibiae ; all the 

 tarsi are darker towards the apex, they are minutely spinose and 

 are longer than usual, the basal joint of the anterior is as long as 

 the tibiae. Wings hyaline, except for the cloud, which extends 

 from the costa to the end of the recurrent nervure, it becoming 

 narrower as it does so, but not extending beyond its outer side : 

 the stigma is fulvous ; the costa and nervures black ; the cloud 

 has a distinct bluish tinge ; the areolet is distinctly appendiculated 

 and oblique; the pedicle is iwo-thirds of the length of the 

 branches ; _ the areolet is oblique, narrowed above, somewhat 

 triangular in shape, and receives the recurrent nervure at the apex. 



