longate-conical;
arista bare; abdomen blackish blue, second segment very large, third and
following not visible; legs testaceous; wings limpid, with four
transverse pale brown subcostal streaks; discal transverse vein parted
by less than half its length from the border, and by less than its
length from the flexure of the praebrachial; halteres testaceous. Length
of the body 2--2-1/2 lines; of the wings 4-1/2 lines.

126. LAMPROGASTER TETYROIDES, n. s. _Mas._ Atra, nitens, brevissima,
latissima; capite transverso, subruguloso; thorace scitissime punctato;
abdomine cyaneo; tarsis flavis; alis nigris albido punctatis apud
marginem posticum obscure cinereis.

_Male._ Deep black, shining, very short and broad. Head transverse,
slightly rugulose; third joint of the antennae conical; arista thinly
plumose; thorax very finely punctured; scutellum almost semicircular;
abdomen blue, smooth; tarsi yellow; wings black, dark grey towards the
hind border, with whitish points towards the costa; discal transverse
vein parted by about its length from the border and by more than its
length from the praebrachial transverse. Length of the body 2-1/2 lines;
of the wings 5 lines.

Gen. PLATYSTOMA, _Latr._

127. PLATYSTOMA FUSIFACIES, n. s. _Mas et Foem._ Cinerea; capite postice
et apud oculos albo; vertice pallide luteo (mas) aut rufo (foem.); facie
plana, fusiformi, subargentea; antennis piceis; thoracis vittis tribus
pectoreque canis; abdomine conico punctis albis; alis limpidis, guttis
transversis interioribus fasciisque exterioribus nigricantibus.

_Male and Female._ Cinereous. Head white hindward and about the eyes,
black and shining towards the mouth; vertex pale luteous in the male,
red in the female; face flat, fusiform, somewhat silvery; antennae
piceous, third joint long, slender, linear, arista plumose; thorax with
three hoary stripes, the middle one much broader than the lateral pair;
pectus hoary; abdomen conical, with numerous white points; wings limpid,
with blackish dots towards the base, and with four exterior blackish
bands, two of which are dilated towards the costa, and there contain
some limpid dots; veins black, discal transverse vein straight, parted
by about one-fourth of its length from the border, and by more than its
length from the praebrachial transverse; halteres whitish. Length of the
body 3-1/2-5 lines; of the wings 8-10 lines.

128. PLATYSTOMA MULTIVITTA, n. s. _Mas._ Cinerea; capite postice et apud
oc