Dr. Dolichall has described this species and several other Diptera
in a Zoological Journal published in Java. I am unable to refer to
this work, but have adopted the names with which he has ticketed the
species in Mr. Wallace's collection.
_Heliomeia_ has the aspect of _Leptis_, but is distinguished by the
subanal and anal veins being united before they join the border of the
wing, thus agreeing with _Chrysopila_, from which it differs in the
shorter third joint of the antennæ, and in the more slender arista.
Gen. SURAGINA, n. g.
_Foem. Corpus_ lineare. _Caput_ thorace vix angustius. _Proboscis_
porrecta, compressa, capitis latitudine paullo brevior. _Palpi_
lanceolati, porrecti. _Antennæ_ brevissimæ; articulus 3^{us} rotundus;
arista gracilis, nuda. _Abdomen_ subdepressum, thorace non duplo
longius, apice obtusum. _Pedes_ nudi, inermes, longiusculi, sat
graciles. _Alæ_ mediocres, areola discali longissima.
_Female._ Body linear, moderately broad. Head almost as broad as
the thorax; vertex and front of equal breadth. Proboscis porrect,
compressed, a little shorter than the breadth of the head. Palpi
lanceolate, contiguous to the proboscis. Antennæ very short; 3rd joint
round; arista slender, bare, longer than the antenna. Thorax a little
narrower in front. Abdomen somewhat flat, less than twice the length
of the thorax, obtuse at the tip. Legs bare, unarmed, rather long and
slender. Wings moderately long and broad; radial vein slightly curved;
forks of the cubital vein a little longer than the preceding part; 3rd
externo-medial vein inclined beyond the discal areolet towards the
4th, which is straight; subanal and anal veins united close to the
border; discal areolet nearly six times longer than broad, its fore
side hardly angular.
58. SURAGINA ILLUCENS, n. s. _Foem._ Cinereo-nigra, capite
argenteo-cinereo supra atro, palpis antennisque nigris, thorace vittis
duabus cinereis, abdomine basi cinereo maculis duabus magnis basalibus
apiceque testaceis, pedibus nigris, femoribus testaceis nigro cinctis,
tibiis intermediis luridis, alis fuscis postice cinereis albo
bifasciatis et bistrigatis.
_Female._ Cinereous black; head silvery grey, deep black above;
proboscis, palpi, and antennæ black; thorax with two cinereous
stripes; pectus cinereous; abdomen cinereous at the base; two large
basal and lateral spots and the tip testaceous; legs black, femora
testaceous, anterior femora black towards the base, hind femora with
a broad black band, middle tibiæ lurid; wings brown, cinereous along
the basal part of the interior border; two white abbreviated bands and
two white intermediate streaks; veins black; halteres testaceous, with
black knobs. Length of the body 7 lines; of the wings 12 lines.