ansverse; halteres whitish. Length of the
body 3-1/2 lines; of the wings 6 lines.

141. ORTALIS COMPLENS, n. s. _Mas et Foem._ Nigro-viridis; capite
antennisque testaceis, articulo tertio brevi, arista plumosa; abdomine
atro; pedibus testaceis, femoribus nigris; alis albo limpidis, strigis
duabus apiceque nigro-cinereis, fasciis tribus satis nigricantibus;
halteribus albis. _Mas._ Vertice luteo postice nigro, femoribus apice
testaceis, alarum fasciis subconnexis. _Foem._ Vertice nigro, tibiis
nigris, posticis basi testaceis.

_Male and Female._ Blackish green. Head testaceous; antennae testaceous,
third joint short, conical; arista plumose; abdomen deep black; legs
testaceous; femora black; wings limpid white, with three broad blackish
stripes, the second emitting a branch from its outer side to the costa,
a streak connected with the outer side of the third band, and the tips
blackish cinereous; discal transverse vein straight, parted by much less
than its length from the border, and by a little more than its length
from the praebrachial transverse; halteres white. _Male._ Vertex luteous,
black hindward; femora with testaceous tips; bands of the wings partly
connected. _Female._ Vertex black; tibiae black, the hind pair testaceous
towards the base. Length of the body 1-1/2--2 lines; of the wings 3-4
lines.

Gen. TRYPETA, _Meigen_.

142. TRYPETA MULTISTRIGA, n. s. _Foem._ Testacea; thorace pectoreque
nigro-strigatis; abdomine maculis quatuor lateralibus anterioribus
fascia lata apiceque nigris; femoribus posterioribus nigro vittatis;
alis nigricantibus basi marginali maculis guttisque albis.

_Female._ Testaceous. Third joint of the antennae short, conical; arista
plumose; thorax with black bristles on each side, with eight black
streaks, four in front, of which the middle pair are very short, four
hindward, the middle pair short, the outer pair connected in front of
the scutellum, two lateral black streaks; pectus with a black
interrupted streak on each side; disk also black; abdomen with two
transverse black spots on each side towards the base, and with a broad
black band; oviduct black, flat, lanceolate, obtuse at the tip;
posterior femora striped with black; wings blackish, limpid for a space
from the base along the costa and along the hind border, and with twelve
white marks of various size, four discal, eight marginal; discal
transverse vein nearly straight, parted by one-fourth of its length from
the border,