452 SUPPLEMENT. 
of five segments, which have macrochete on their hind margin. Legs moderately long, with some 
bristles; foot-claws and pulvilli elongate in the ¢. Wings rounded at the tip, usually blackish along 
the costa ; curvature of the fourth vein rounded ; apical cell closed and petiolated at the wing’s tip. 
This genus differs principally from Ocyptera in the less elongate shape of the third 
antennal joint and in the venation of the wings, the curvature of the fourth vein being 
not angular but rounded, and the petiole of the apical cell not ending in the costa but 
in the wing’s tip. Xanthomelana has a certain affinity to the genus Acaulona (antea, 
p. 4), belonging to the Phasine. The apical cell of the wings, however, is closed and 
petiolated, and macrochete are present on the abdomen, this last-mentioned character 
bringing the present genus into the group Ocypterine. 
Mr. Townsend [Canad. Ent. 1893, p. 167; Ann. & Mag. Nat. Hist. (6) xx. p. 287] 
has suggested the name Xanthomelanodes for this genus, on account of Xanthomelana 
being too much like Xanthomelon, v. Mart. (a genus of Mollusca), but there is no 
necessity for this change. 
The six species known to me may be identified by the following Table :— 
1. Antenne elongate, the third joint more than twice as long as the 
second; arista thickened to beyond the middle and distinctly jointed 
atthe base. 6 1 ee ee ew ee ee ew we ee rticulata, v. d. Wulp. 
Antenne short, the third joint not more than twice as long as the 
second; arista thickened at the base only and not distinctly jointed . 2. 
2. Legs rufous or yellowish, at least the coxe and the basal part of the 
femora of that colour . 2. 1 1 6 we ee eee ee 
Legs black . a 4,, 
3. Femora wholly rufous; abdomen rufous, with the last two segments 
black . . . . oe ee . oe rubicunda, v. d. Wulp. 
Femora black towards the tip; abdomen rufous, with black dorsal 
spots or a black dorsal band . woe ee ww ew we we +) «dorsalis, v. d. Wulp. 
4, Abdomen with trigonal black markings. . . . . . . . =. . .« érigonalis, v. d. Wulp. 
Abdomen with a black dorsal band, which is sometimes absent. . . 5. 
. Tegulz and halteres yellow; abdomen cylindrical, with a black dorsal 
cr 
band ; front broad in both sexes . . . 2. 1 1. we we ee gracilenta, v. d. Wulp. 
Tegule and halteres black; abdomen ovate, without black band; eyes 
nearly contiguousin 6 «1. ww we ee ee ee anceps, V. A. Walp. 
1. Xanthomelana articulata. (Tab. XIII. fig. 18, head, ¢.) 
Xanthomelana articulata, v. d. Wulp, Tijdschr. voor Ent. xxxv. p. 188". 
Black ; head, shoulders, and the transverse suture of the thorax yellow; abdomen rufous, black towards the 
_ tip; femora partly rufous ; wings blackish; antenne elongate ; arista thick, distinctly jointed. 
Length 5 millim. 
Front as broad as the diameter of the eyes; frontal band black, occupying almost the whole breadth of the 
front; the sides, face, and cheeks yellow; occiput whitish-grey ; antenne black, third joint elliptical, 
more than double as long as the second, the first joint of the arista and the proximal half of the second 
thickened. Palpi rufous, infuscate towards the tip. The thorax has quadrangular yellow humeral spots ; 
the yellow margin of the transverse suture is but a thin line, and there is a similar line on the hind 
