d and antennae black, arista plumose; thorax with two
slender, darker, almost obsolete stripes; hind borders of the abdominal
segments black; legs piceous, femora black, coxae tawny; wings grey, with
a lurid tinge towards the costa, discal transverse vein straight,
slightly clouded with brown, parted by about half its length from the
border, and by more than twice its length from the praebrachial
transverse; halteres testaceous. _Var._ Thorax with a broad piceous
stripe; abdomen piceous. Length of the body 3 lines; of the wings 6
lines.

114. HELOMYZA ATRIPENNIS, n. s. _Mas._ Fulva, scutello nigro, pectore
piceo, abdomine ferrugineo, alis nigris postice cinereis.

_Male._ Tawny. Antennae pale tawny, arista plumose; thorax with two
slender, darker, almost obsolete stripes; scutellum black; pectus
piceous; abdomen ferruginous; wings black, cinereous along the hind
border for more than half its length from the base, veins as in the
preceding species. Length of the body 2-1/2 lines; of the wings 5 lines.

115. HELOMYZA RESTITUTA, n. s. _Foem_. Testacea, abdomine punctis sex
nigris, alis cinereis apice nigricantibus venis transversis nigricante
nebulosis.

_Female._ Testaceous. Third, fourth, and fifth segments of the abdomen
with two black points on each fore border; wings grey, with a slight
lurid tinge towards the costa, blackish at the tips, transverse veins
clouded with blackish, veins with the usual structure. Length of the
body 2-1/2 lines; of the wings 5 lines.

Gen. DRYOMYZA, _Fallen._

116. DRYOMYZA SEMICYANEA, n. s. _Foem._ Ferruginea, vertice piceo,
antennis fulvis, thorace cyanescente, abdomine cyaneo basi ferrugineo,
pedibus testaceis, alis subcinereis apud costam luridis.

_Female._ Ferruginous. Vertex piceous, face slightly covered with
whitish tomentum; antennae tawny, arista very minutely pubescent; thorax
tinged with blue; abdomen blue, tawny at the base; legs testaceous;
wings greyish, lurid along the costa, veins tawny, praebrachial vein
forming a very slight angle where it joins the discal transverse, with a
slight curve from thence to its tip, praebrachial transverse stout,
slightly clouded, discal transverse straight, upright, parted by much
less than half its length from the border and by a little more than its
length from the praebrachial transverse; halteres testaceous. Length of
the body 3-1/2--4-1/2 lines; of the wings 7-9 lines.

Gen. SEPEDON, _Latr._

117. SEPEDON COSTALIS, n. s. _Ma