106 ^Ir. r. Cnnieion on Ilymenoptera 



XXI. — On some undescn'ha? rJnjtophngous and Parasitic 

 llymtnoptera from the Oriental Zoolo/jical Region. By 

 P! Cameron. 



For the species described in this paper I am iiulcbted to 

 Col. C. T. Bingham. 



TentliredinidaB. 



Tenthredo lepcha, sp. n. 



Lnteous; the antennal scape in tlie middle above, the 

 flapellum, the sixth to eighth and the sides of the ninth 

 rbdoniinal segment broadly laterally, and the hind legs, except 

 the coxse and trochanters, black. Wings yellowish hyaline, 

 the apex from the end of the stigma fuscous, tinged with 

 violaceous; the apex of the hinder with a narrower fuscous 

 cloud. ? . 



Lencrth 16 mm. 



Sikkim. 



Smooth, shining; the face, clypeus, labriim, mandibles, 

 lower outer orbits, and base of legs pale yellow. The vertex 

 in the centre with a short black pile, the face, cly))eus, 

 labium, and 1 ase of mandibles sparsely covered with long 

 pale hair ; the thorax above thickly coveied with short 

 luscons pubescence. Apex of clypeus broadly, roundly 

 iicised ; the labium punctured at the root of the hairs. Apex 

 of mandibles black. Upper half of the front with a \\ ide 

 fihallow depiessicn, which is sparsely haired ; the lower with 

 a deeper, smooth, baredejiressicn, the two parts being clearly 

 Fepaiated; they aie bordered by a broad keel. Centie of 

 vertex (including^ the ocelli) boidered by a narrow, but dis- 

 tinct, turrow. Head large, wider than the thorax, the temples 

 •wide, rounded ; occiput sharjdy margined. The third and 

 fourth joints of the antenna* are almost of equal length ; the 

 anteni £e are densely covered with short stiff black pubescence. 

 Scutellum prominent, obliquely sloped at the base and 

 apex. 



This species comes close to T. xanthoptera^ Cam.; the two 

 iray le separated thus : — 



Bir.d femora, base of hind litise, and npex of abdomen 

 luleouf; tbe third jf int of aj.ttnrse distinctly Icnger 

 than the ff uith ; tho iipjer jfiit of the fiontel area 

 rmndly ciiivtd cutwaid]y,tl,e sides distinct, icfidiii g 

 to the cuter ocelli, the apex of the lower part distinctly 

 obliquely narrowed .xantho^tera. 



