idi maculis nigris,
antennis basi ferrugineis, pectoris callis duobus scutelloque testaceis,
abdomine basi sordide albido lineis tribus nigris, fasciis duabus
cano-tomentosis, segmentis tertio quartoque apice ferrugineis, tibiis
basi tarsisque albidis, alis subcinereis fusco marginatis, stigmate
nigricante, halteribus testaceis.

_Female._ Black. Head dull green, with several black spots; mouth
testaceous; antennae dark ferruginous towards the base; two pectoral
calli and the scutellum testaceous; abdomen at the base dingy-whitish
and semihyaline, and with three black lines; third and fourth segments
with hoary bands, their hind borders ferruginous; tibiae towards the
base, and tarsi, whitish; hind tibiae with the two colours most
distinctly marked; wings grey, with broad brownish borders; stigma
blackish; veins black; halteres testaceous. Length of the body 6 lines;
of the wings 11 lines.

8. MASSICYTA CERIOIDES, n. s. _Foem._ Nigra, capite testaceo maculis
nigris, antennis basi ferrugineis, pectoris callis duobus, thoracis
vittis duabus interruptis, scutello abdominisque fasciis tribus
viridibus, segmento abdominali secundo maculis duabus testaceis, tarsis
albis, alis nigricanti-fuscis, halteribus viridibus.

_Female._ Black. Head testaceous, with some black spots on the vertex.
Antennae dark ferruginous towards the base. An interrupted stripe on each
side of the thorax, two pectoral calli, the scutellum, and the hind
borders of the second, third, and fourth abdominal segments green.
Abdomen testaceous at the base beneath; first band interrupted, having
before it two testaceous spots. Knees lurid; tarsi white. Wings blackish
brown; stigma and veins black; halteres apple-green. Length of the body
5-6 lines; of the wings 10-12 lines.

Gen. SALDUBA, n. g.

_Male. Corpus_ angustum, sublineare. _Caput_ transversum; vertex
angustus. _Oculi_ magni. _Antennae_ capite transverso valde longiores;
articuli primo ad septimum breves; flagellum longum, lanceolatum,
subarcuatum. _Thorax_ longus, subcompressus; scutellum inerme. _Abdomen_
planum, thorace paullo longius. _Pedes_ graciles; postici longi. _Alae_
angustae.

_Male._ Body narrow, nearly linear. Head slightly transverse, nearly as
broad as the thorax; vertex narrow. Eyes large. Antennae shorter than the
thorax; joints from the first to the seventh short; flagellum long,
lanceolate, slightly curved. Thorax long, slightly increasing in breadth
from the head to the bas