_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. Gen. XIRIA, n. g. (_Plate II. fig. 2._) _Mas._ _Corpus_ metallicolor, subsetosum. _Caput_ latiusculum. _Palpi_ longiusculi. _Antennæ_ breves; articulus 3^{us} sublinearis; arista latè pumosa. _Thorax_ robustus. _Abdomen_ lineare, thorace paullò longius et multò angustius. _Pedes_ longiusculi, sat validi. _Alæ_ mediocriter longæ latæque. _Male._ Body metallic, slightly setose. Head rather broad, hardly narrower than the thorax; epistoma not prominent. Proboscis short. Palpi porrect, rather long and stout. Antennæ short, not nearly reaching the epistoma; 3rd joint almost linear; arista deeply plumose, much more than twice the length of the 3rd joint. Thorax stout. Abdomen linear, a little longer than the thorax and about half its breadth. Legs rather long and stout. Wings moderately long and broad; subcostal vein ending at rather beyond one-third of the length; mediastinal ending at very much beyond half the length; radial ending at beyond five-sixths of the length; cubital ending at hardly in front of the tip; discal transverse nearly straight, slightly oblique, parted by about half its length from the border, and by rather more than its length from the præbrachial transverse. 115. XIRIA ANTICA, n. s., mas. Purpurea, capite nigro, antennarum articulo 3^o ferrugineo, pedibus testaceis, tibiis nigris, tarsis albis anticis ferrugineis, alis sublimpidis apice nigricantibus maculis costalibus albis et nigricantibus. _Male._ Purple. Head and appendages black. Third joint of the antennæ ferruginous. Legs testaceous; tibiæ black; fore tarsi ferruginous; posterior tarsi white, with brown tips. Wings nearly limpid, with two white and two blackish spots on the costa; tips blackish; veins black, testaceous along the costa. Halteres whitish. Length of the body 4 lines; of the wings 8 lines. Mount Ophir. Subfam. ACHIIDES, _Walk._ Gen. ACHIAS, _Fabr._ 116. Achias maculipennis, _Westw._ _Oriental Entomology_, 38. pl. 18. f. 4. Singapore. Inhabits also Java. Subfam. DIOPSIDES, _Walk._ Gen. DIOPSIS.