_Fœm._ _Corpus_ angustum, pubescens. _Caput_ sat parvum, thorace multò
angustius. _Antennarum_ articulus 3^{us} sublinearis; arista rarò
plumosa. _Thorax_ longiovatus. _Abdomen_ fusiforme, thorace multò
angustius, vix longius. _Pedes_ graciles, antici breves. _Alæ_
longæ, mediocriter latæ, obscuræ, guttis albis.
_Female._ Body narrow, dull, pubescent. Head rather small, much less
broad than the thorax; epistoma not prominent. Proboscis and palpi
short. Antennæ not reaching the epistoma; 3rd joint almost linear,
moderately long; arista thinly plumose. Thorax elongate-oval.
Abdomen fusiform, much narrower, but hardly longer than the thorax.
Legs slender; fore legs short. Wings long, moderately broad, dark
with white dots; radial vein ending at rather in front of the tip of
the wing; discal transverse vein almost straight, very oblique,
parted by about one-fourth of its length from the border, and by
somewhat less than its length from the præbrachial transverse.
114. RIOXA LANCEOLATA, n. s., fœm. Cervina, thorace
nigro-quadrivittato, abdomine nigro vittâ dorsali cervinâ, pedibus
testaceis, alis nigricantibus strigâ discali guttisque quinque
albis.
_Female._ Fawn-colour. Proboscis, legs and halteres testaceous. Thorax
with two blackish stripes on each side, the outer pair shortened
hindward. Abdomen black, with a fawn-coloured dorsal stripe which is
attenuated hindward, and does not extend to the tip. Wings blackish,
almost limpid along the hind border for more than half the length
from the base, with a white discal streak and with five white dots;
1st dot in a line with the streak; 2nd very minute, behind the 1st;
3rd on the costa near the tip; 4th larger, apical, near the 5th,
which is on the hind border. Length of the body 5 lines; of the
wings 10 lines.
Singapore.