428 
Philippine Journal of Science 
1919 
and ending a little before hind border of last segment. Last 
two segments with a broad black patch on each side, in the shape 
of a lunate spot, chiefly those of the fourth segment ; oval patches 
of fifth segment less indicated and nearly opacous. Venter 
entirely reddish yellow, only the pregenital plate being blackish. 
Hind border of third segment with black cilia on sides. Legs 
and coxse reddish yellow, with tarsi whitish at base; short pu- 
bescence whitish, middle spur black; four anterior tibiae more 
or less darkened outwardly and at base; hind tibiae blackish, 
with a broad prominent tubercle at hind side before the end. 
Wings (Plate I, fig. 8) hyaline, very iridescent and shining; 
veins reddish; second longitudinal vein straight, short and very 
close to costa, the marginal cell being as narrow as stigma; 
third vein rather sinuous, curved above before its end; terminal 
portion of fourth vein very little curved at base; small cross 
vein very long, placed about on middle of discoidal cell, the 
latter less regular than usual, being a little restricted above on 
its basal half; supernumerary lobe not much developed. The 
pattern consists of a very narrow costal border, including the 
stigma and the very narrow marginal cell; at distal end of this 
border and narrowly united with it, a very broad, rounded, 
blackish spot at ends of submarginal and first posterior cells. 
Costal cells quite hyaline, first basal darkened above the second. 
Anal stripe well developed, and apparently broadened at end 
of the joint of anal cell. 
Note . — The present species, because of its broad frons, the 
restricted base of its abdomen, and its wing pattern, recalls some 
species of the genus Mellesis with shortened first antennal joint, 
like M. brachycera Bezzi, from India; but it seems that the 
anterior supra-alar bristles as well as the prescutellar bristles 
are present. 
13. Chaetodacus cucurbitae Coquillett, 1899. 
This is well distinguished from all the other species by the 
three pairs of lower orbital bristles, the middle yellow stripe of 
the back of mesonotum, and the peculiar wing pattern with the 
broadly infuscated hind cross vein. 
LUZON, Laguna Province, Los Banos and Mount Maquiling 
{Baker) . Mindanao, Davao (Baker) . These insular specimens 
are a little smaller than the continental ones (from India), 
measuring usually not over 6 to 6.5 millimeters in length. 
14. Chaetodacus eaudatus Fabricius, 1805. 
The Philippine specimens of the present species are very much 
