HYMENOPTERA FROM SARAWAK. 165 
slichtly infuscated, the stigma fulvous. Legs yellow; the 
apices of the four front femora above, the hinder almost entirely, 
the base and lower side of the hinder tibize and the basal joints 
of the hinder tarsi, black. Abdominal segments narrowly lined 
with yellow; two longish lines near the base of the petiole and 
two long, curved, somewhat pyriform, (the narrow end at the 
base) marks on the base of the 2nd segment and the whole of the 
apical segment, yellow. ©. 
Length 14 mm. 
Hab. Penrissen. 
Front and vertex strongly and closely punctured ; the lower 
part of front reticulated. Clypeus broadly but not deeply incised. 
Mandibles on the top and at the apex black. The clypeus is as 
long as its greatest width. Thorax strongly and closely 
punctured ; the longitudinal and the vertical furrows on the base 
of the mesopleure are deep; the furrow on the median segment 
is deep an is keeledin the centre. The petiole is about one 
fourth longer than the 2nd segment; it becomes gradually wider 
towards the apex. The 2nd cubital cellule is much narrowed at 
the top, the nervures almost touching there; the 2nd recurrent 
nervure is almost interstitial ; if anything it is received in the 3rd 
cubital cellule. Petiole distinctly punctured ; the other seg- 
ments smooth. . 
The wings are longer than usual and extend beyond the 
apex of the abdomen the 2nd segment of the abdomen is broad at 
the base and is not contracted there. Maxillary palpi apparently 
four jointed; the last joint minute ; the joints bearing stiff long 
hairs. 
This is not a tyyical Montezumia, but it fits better into that 
genus than into any other. It has also some affinity with Ptero- 
chilus fulvipennis, Cam. (which is not a typical Pterochilus), having 
the palpal characters of that species (cf. Manchr. Memoirs, 1898), 
the joints being sparsely covered with stiff hairs and the last min- 
ute. Characteristic is the greatly narrowed at the top 2nd 
cubital cellule and the interstitial 2nd recurrent nervure. 
Zethus rufofemoratus, Sp nov. 
Black ; the four hinder coxe, trochanters and femora red, 
the clypeus, except for a black mark in its centre, which is pro- 
R. A. Soc., No. 39, 1902. 
