On Indo-Chinese [Tymenoptera, 425 
X LIT.—On Indo-Chinese Hymenoptera collected by R. Vitalis 
de Salvaza.—lI. By Rowtanp E. Turner, F.Z.S., ¥.E.S. 
Family Siricide. 
Tremex smithi, Cam. 
Tremex snuthi, Cam. Trans. Ent, Soc. London, p. 470 (1876). 9 ¢. 
One female, taken at Vieng Vai, Haut Mékong, on 
June 10, 1918, differs from the typical form in the total 
absence of yellow abdominal markings, in the more distinct 
blue gloss on the whole insect, and in the almost clear 
hyaline base of the wings, extending on the fore wing to 
the basal nervure and nervulus. I do not know whether 
these distinctions are merely individual or whether they 
indicate a local race. The antenne are 22-jointed. 
Tremex flavicollis, Cam. 
Tremex flavicollis, Cam. Mem, Manchester Lit. & Phil. Soe. xlii. 
p. 3 (1899). @. 
One female, taken at Vien Poukha, Haut Mekong, on 
May 11, 1918, differs from the description in having the 
scutellum covered with Jong fulvous hairs, aud in having 
the fifth and sixth tergites broadly yellow at the base and 
clothed with long fulvous pubescence towards the apex. 
The antenne are 2]-jointed. 
Xiphydria melanopus, Cam. 
Niphydria melanopus, Cam, Journ. Straits Br. R. As. Soc, xxxix, 
p- 90 (1903). 
Hab. Nam Lot, Haut Mékong; May 2, 1918. 19. 
Described from Borneo. 
Family Evaniide. 
Pristaulacus tuberculiceps, sp. u. 
@. Ferruginea ; capite fusco-ferrugineo ; antennis mandibulisque 
nigris; alis flavis, venis ferrugineis; cellula cubitali prima 
macula magna sub stigmate, cellula brachiali sccunda striga 
obliqua basali, nervuloque macula oblonga venam  basalem 
