Indo- Chinese Hymenoptera. 87 
curved outwards above the middle ; second recurrent nervure 
interstitial with the second transverse cubital nervure. 
Hab. Chapra, Tonkin, May 7-21, 1916. 
Differs from the other Oriental species of the genus in the 
colour of thorax. The black marks on the basal tergites are 
not constant, 
Subfamily Vewrurepryry 2. 
Tribe SELANDRIADES. 
Selandria ceruleiceps, Cam. 
Selandria ceruleiceps, Cam, Mem. Manchester Lit. & Phil. Soc. xliii. 
p. 45 (1899). 9. 
Four males from Hanoi, taken in April, differ from the 
description of the females in having the legs entirely whitish, 
the base of the cox only black, and the tarsi infuscate 
at the apex. It is possible that these represent a distinct 
species, but as the difference may only be sexual, I do not 
think it would be justifiable to treat them as distinct. The 
costa is thickened before the stigma, so I follow Cameron in 
placing the species in Selandria, and not transferring it to 
Stromboceros, as is done by Konow, 
Tuxonus varicolor, sp. n. 
Q. Nigra; antennis articulis 5 apicalibus, quinto basi infuscato, 
labro, pronoto, scutello, postscutello maculis tribus parvis, macn- 
laque parva sub alis albis; propodeo, segmentis abdominalibus 
duobus basalibus pedibusque rufo-testaceis ; tibiis posticis apice 
extremo, metatarsisque posticis, apice excepto, nigris; tarsis 
posticis, basi nigris, luteis; alis hyalinis, venis nigris, stigmate 
basi luteo-maculato ; alis posticis cellulis medianis clausis nullis. 
Long. 9 mm. 
?. Clypeus broadly truncate at the apex; head closely 
and strongly punctured, not narrowed behind the eyes; 
vertical area broader than long posteriorly, narrowed ante- 
riorly, a smooth shining space on each side of the area. An- 
tenne shorter than the abdomen, slender, third joint scarcely 
longer than the fourth, more than half as long again as the 
fifth, which is as long as the three apical joints combined. 
Mesothorax ratlier closely punctured; scutellum flattened, 
shining, and very sparsely punctured. Hind coxe broad and 
long, closely punctured, the hind femora reaching to the 
apex of the abdomen ; hind metatarsus stout, as long as the 
four apical tarsal joints combined. Second recurrent nervure 
