ulos albo, vertice luteo, facie et antennis fulvis; thoracis vittis
octo pectoreque canis; abdominis segmentis cano fasciatis; ventre
ferrugineo; pedibus nigris; alis limpidis, fasciis quatuor strigisque
interioribus nigricantibus.

_Male._ Cinereous. Head white behind and about the eyes, vertex luteous;
face and antennae tawny, third joint of the latter long, slender, linear;
arista very slightly plumose; thorax with eight hoary stripes; pectus
hoary; abdomen with a hoary band on the fore border of each segment;
legs black; wings limpid, with four blackish bands, and with some
blackish marks nearer the base; two blackish streaks between the first
and second bands; veins black; discal transverse vein straight, parted
by one-fourth of its length from the border, and by very much more than
its length from the praebrachial transverse; halteres black. Length of
the body 4 lines; of the wings 8 lines.

Gen. DACUS, _Fabr_.

129. DACUS EXPANDENS, n. s. _Foem._ Fulvus, latiusculus; antennarum
articulo tertio piceo angusto lineari longissimo; abdomine vitta tenui
nigricante; alis limpidis, costa vittaque postica fuscescentibus.

_Female._ Tawny, rather broad, very slightly covered with hoary
tomentum, which forms stripes on the thorax and indistinct bands on the
abdomen; third joint of the antennae piceous, slender, linear, very long;
arista bare; abdomen with a slender blackish stripe; wings limpid,
brownish along the costa, and with a short oblique brownish stripe
extending from the base to the interior border; veins black, discal
transverse vein oblique, parted by full one-fourth of its length from
the border, and by more than its length from the praebrachial transverse;
halteres testaceous. Length of the body 4 lines; of the wings 8 lines.

130. DACUS PECTORALIS, n. s. _Foem._ Cinereo-niger; capite fulvo, facie
guttis duabus nigris; antennarum articulo tertio piceo angusto lineari
longissimo; callis duabus humeralibus, fasciis duabus obliquis
pectoralibus lateralibus, scutello tarsisque testaceis; thoracis vittis
tribus abdominisque una canis; pedibus fulvis piceo cinctis; alis
limpidis, costa vittaque postica fuscescentibus.

_Female._ Black, slightly covered with cinereous tomentum. Head tawny,
with two small black dots on the face; third joint of the antennae
piceous, slender, linear, very long, arista bare; thorax with three
indistinct hoary stripes; humeral calli, an oblique band on each side of
the pectus, scutel