572 Mr, P. Cameron on new 
minal segment slightly, the apical strongly punctured ; the 
other segments closely punctured, the punctuation becoming 
weaker towards the apex, the second striolated at the base. 
Gastroceeli large, curved, smooth at the base and bottom. 
Dimetha nigrolineata, sp. n. 
Ferruginous ; the second, third, and fourth abdominal 
segments black at the base, the apical entirely black, the 
face, clypeus, labrum, mandibles, and palpi yellow; the 
ocellar region and the occiput in the centre black, the orbits 
yellow; the front rufous and with two sharp stout keels in 
the middle, running down from the ocelli and converging 
below ; the four front legs rufous, their cox paler, more 
yellowish, slightly more than the apical half of the hmder 
femora, slightly more than the apical half of the hinder 
tibize, and the hinder tarsi, black. Wings yellowish hyaline, 
the costa and stigma rufo-fulvous. ¢. 
Length 20 mm. 
Hab. Khasia. Coll. Rothney. 
Face and clypeus punctured, the latter more strongly than 
the former, the labrum more finely and closely. Antennze 
black, the scape yellow. The lower part of the pleure and 
the sternum are paler, more yellowish than the mesonotum, 
which is closely and strongly punctured and thickly covered 
with longish black hair. Seutellum pyramidal, oblique, 
strongly punctured (except at the top), which ends in asome- 
what triangular point and is thickly covered with long 
fuscous hair. Postscutellum very smooth and shining and 
with an obliquely rounded slope. The raised obsolete areola 
smooth; from it run two stout acute keels to the apex of 
the segment, the keels becoming larger and more acute 
towards the apex; the sides are bordered by a curved, more 
irregular keel; the base is coarsely rugosely punctured, the 
punctures running into reticulations; the apex is more 
stoutly transversely striated; the spiracular region coarsely 
rugosely reticulated, and bordered on the outer side by a 
smooth keel; the segment is covered closely with longish 
black hair. Propleurz punctured above. Mesopleurz with 
a long sharp keel at the tubercles, above with shallow punc- 
tures, the middle more strongly punctured, the punctures on 
the lower part running into strong longitudinal striations. 
Metapleurz (except at the base above) strongly punctured ; 
shortly below the middle is a stout eurved keel; the base, 
apex, and lower part bordered by a narrower keel, the two 
forming a large enclosed area. Petiole above coarsely punc- 
