XASTH KXOCIIUS. K.\( >C1I US. 293 



207. Xanthexochus scutellatus, sp. n. 



2 . A large, flavo-testaceous species, with sparse black markings. 

 J-Jeitd pale, with only the ocelli, occiput, and unequal mandibular 

 teeth, black ; face coarsely and evenly punctate, clypeus smoother. 



Antennce black ; scape entirely 

 flavous, and the flagellum 

 ruf escent beneath . Thorax 

 testaceous, with the base of 

 the mesonofcum (whence pro- 

 ceed three testaceous discal 

 stripes), and the postscutellar 

 frenum narrowly, black ; 

 notauii distinct, superficial, 

 and not short. Scutellum 

 and postscutellum flavous. 

 Abdomen convex, nitidulous, 

 pilose, subparallel-sided, and 

 pale testaceous, with the base 

 175 of all the transverse segments 



Xanlhexocli-us scutellatus, Mori. indeterminately and narrowly 



blackish. Legs flavescent, 

 with the pulvilli, posterior claws, base of hind tibia?, and extreme 

 apex of their femora, black. Wings hyaline, with radix and 

 tegulse flavous and stigma infuscate. 

 Length 10 millim. 



ASSAM : Chandkhira, Sylhet (J. L. Slier will). 

 Type in the British Museum. 

 Described from a single female. 



Genus EXOCHUS, Gmv. 



Exochus, Gravenhorst, Ichn. Eur. ii, 1829, p. 328 : Thomson. Deut. 

 Ent. Zeit. 1887, p. 207. 



GENOTYPE, Ichneumon gravipes, Grav. 



A genus of small, shining black species with prominent face 

 and no areolet. Head transverse, with the vertex not narrow, 

 often with pale markings laterally ; occiput declivous and more 

 or less excavate; frons impressed above the scrobes, with no 

 eristulae ; face strongly convex and somewhat strongly punctate ; 

 cheeks often with an impressed sulcus and their costae usually 

 inflexed ; eyes always broader below and internally more or less 

 emarginate. Antennae shorter than the body, stout, filiform or 

 subsetaceous, emitted from the top of the facial prominence. 

 Thorax stout, usually deplanate, with the pronotal epoinia? dis- 

 tinct and nitidulous ; notauii wanting or punctiform ; areola 

 confluent with basal area, with no dividing carina; costula? 

 stronger in S ; petiolar area not discrete ; spiracles oval or 

 subcircular. Scutellum with no lateral margin. Abdomen 



