a6 | DIPTERA 
vitiata, Loew, Berl. Ent. Zeitschr. Vol. 6, p. 210 : Cent. 2, No. 56 (1862). 
species innom. Williston, Trans. Ent. Soc. London, Vol. 3, p. 440 (1896). 
Subsp. coleophora, nov. subsp. (1). Wyoming. 
11. H. femorata, nov. sp. (2). Panama. 
12. H. gonalopus, Speiser, Berl. Ent. Zeitschr. Vol. 52, p. 145 (1907). E. Africa. 
13. H. jugulator, nov. sp. (3). New York. 
—. H. meigeniana, Stephens, Syst. Cat. Brit. Ins. Vol. 2, p. 264 (1829), no : 
description. 
14. H. mesomelena, Bezzi, Nova Acta Akad. Naturf. Halle, Vol. o1, p. 390, Peru. 
392 [1909] (Microdromia). 
15. H. ? nigrolineata, Roser, Correspondenzbl. Landw. Ver. Würtemb. Stutt- C. Europe. 
gart, Vol. 1, p. 53 (1840). m 
16. H. nympha, nov. sp. (4). Java. 
(1) Hemerodromia empiformis, subspecies coleophora, nov. subsp. — Male. Length 3mm. Head 
black, lower orbits and face silvery, thorax reddish, the notum centrally black, tergites black except at sides, pygidium 
shining black: legs, antennzs, mouthparts, venterand halteres pale yellow. Six flexor spines on front femora in length equal 
to diameter of tibize, basal tubercle of front femora vestigial. Pygidium large, erect, the most conspicuous portion being the 
obliquely ascending hamate lower valves, the upper valves small, cupuliform, pronged above and furnished with long hairs, 
base of penis visible, enclosed in a projecting horny sheath. Wings clear, veins yellowish, first posterior cell much 
contricted at tip, second posterior cell shorter than its petiole, the fork occurring much before the end of the second vein, 
sections of fourth vein 3:2 : 5.5: 7, of fifth vein 3 : 4. 
Female. Ovipositor longer than deep. 2d 
"Thirteen males, ten females, Yellowstone Park, Wyoming, several places along streams, August 4 to 5, 1918, i. e. the 
Madison River near the Park West Entrance, and the Cascades of the Firehole River. 
(2; Hemerodromia femorata, nov.sp. — Female, Length 3.5 mm. "Testaceous, including the antenne and - 
the mouthparts, head and metanotum black, thoracic dorsum with a well defined central blackish vitta which includes the - 
base of the scutellum, abdominal tergites except the last, brown, legs and halteres yellow, Occiput not shining, the lower - 
white-pruinose spot not continuing far along the orbits, front rather narrow, more than twice as long as broad, itslower part - 
reddish, eyes narrowly but entirely separated on the face; third joint of the antennze ovate, nearly twice as long as wide and. 
three times as long as the style. Thorax very sparsely coated with gray dust, its hairs very sparse and minute, the vitta 
tapering anteriorly and then suddenly expanding over the humeri : ovipositor shining black, compressed, pointed, as long 
as the preceding segment. Front coxz very thin and elongate, nearly as long as the greatly thickened femora, the latter 
with a prominent spine-bearing tubercle near the base beneath, with strong biseriate black flexor setulze and with a posterior 
row of six heavy yellow setze, front tibiz three-fourths as long as their femora, tipped with a spur and with a sharp black 
spine, biseriately black-spinulose beneath, last two joints of the posterior tarsi infuscated. Bases of the third and fifth 
— and brown, the second to the fifth sections of the costa proportioned 2.1:1:1: Wbonswm- icu third vein, 
: 1, of the fourth vein, 0.5: 0.4 : 1 : 1.2, its posterior fork weak, sections of the fifth vein, 0.9 : r. 
One specimen ; Alhajuelo, Canal Zone, Panama, March 4, 1912, collected by August Busck for the U. S. National 
Museum, 
(3) Hemerodromia jugulator, nov. sp. — Length 3 mm. Head, dorsum and upper side of the abdomen 
black, pleurze, venter, legs, antennz,, mouthparts and halteres pale yellow. ^Occiput dusted with brown, not shining, 
the lower orbits and the underside of the head densely white pilose, front oblong, more than twice as long as the distance 
between the posterior ocelli, eyes briefly touching on the lower part of the face; third antennal joint ovate, straight above, 
two-thirds longer than broad, with the style two-thirds as long as the third joint, Mesonotum very finely and sparsely 
pollinose so as to appear shining black, its setulze very sparse ; first and last abdominal segments testaceous; pygidium long, 
erect, subshining, loosely hairy, with two pairs of dorsal forcipate valves and a projecting penis; ovipositor very short, 
compressed, shining, glabrous. Legs elongated, slender, front coxze greatly lengthened and very thin, nearly equal to their 
femora in length, the front femora comparatively slender, Veins brown, thin, the second, third and fourth sections of the 
costa proportioned 1.3 : 1 : 1, last sections of the third vein proportioned 2.8 : 1, of tlie fourth vein, 0.5 : 1 : 1, of the fifth 
vein, 0.9 : 1. 
Four specimens; Cold Spring Harbor, Long Island, New York, July, 1913 (Melander). 
(4) Hemerodromia nympha, nov. sp. — Female. Length, including the ovipositor, 3 mm. Very slender, the 
head, thorax and abdomen black, subshining; antennz, mouthparts and legs yellow. Front coxie very slender, five-sixths 
as long as their femora; the front femora without a basal tubercle, but with a spine, front tibiz two-thirds as long as their 
femora, with a sharp apical spine. Base of the very slender and elongate ovipositor yellowish. Halteres black, with a 
reddish root. Wings somewhat infumated, the second vein longer than usual, fork of the third vein beyond the end of the 
second vein, fork of the fourth vein as long as its pedicel, second to the fifth sections of the costa proportioned 1 : 0.3: 0.7 : 
0.15, sections of the fifth vein, 1 : 1.6, fringe of hind margin twice as long as the anterior crossvein. 
One specimen, in the U. S. National Museum; Tjibodas, Mt. Gede, Java ; from the Bryant and Palmer collection. 
The species is noteworthy among the restricted genus Hemerodromía, in having an elongate ovipositor. 
