FAM. EMPIDID/E 255 
3. H. brachialis, nov. sp. (1). Costa Rica. 
4. H. brunnea, nov. sp. (2). Georgia. 
5. H. captus, Coquillett, Proc. U. S. Nat. Mus. Vol. 18, p. 391 (1895); E. United States. 
Melander, Trans. Am. Ent. Soc. Vol. 28, p. 237 (1902); Coquillett, 
Proc. Ent. Soc. Wash. Vol. 5, p. 264 (1993). 
6. H. defessa, Williston, Trans. Ent. Soc. London, p. 439, pl. 14, f. 166 West Indies. 
(1896); Melander, Trans. Amer. Ent. Soc. Vol. 238, p. 237 (1902); 
Coquillett, Proc. Ent. Soc. Wash. Vol. 5, p. 264 (1903); Bezzi, 
Ann. Mus. Hungar. Vol. 3, p. 460 [1905] (Microdromia); Bezzi, Nova 
Acta Akad. Naturf. Halle, Vol. 91, p. 39o [1909] (Microdromia). 
7. H. *detestata, Meunier (not female), Ann. Sc. Nat. (Zool.) Vol. 7, p. go, Baltic Amber. 
103, pl. 6, f. 6 (1908). 
8. H. dorsalis, Brunetti, Rec. Indian Mus. Vol. 9, p. 33 [1913] (CAelifoda); "W. Himalayas. 
Fauna Brit. India Dipt. Vol. 1, p. 367 [1920] (Microdromia). 
9. H. dorsaía, nov. sp. (3). java. 
10. H. empiformis, Say, Journ. Acad. Nat. Sc. Philad. Vol. 3, p. 99 [1823] North America. 
(Ochthera); Wiedemann, Aussereur. Zweifl. Ins. Vol. 3, p. 446 
[1830] (Ochthera empidiformis); Macquart, Hist. Nat. Dipt. Vol. 2, 
p. 519 [1835] (Ochthera empidiformis); Walker, List Dipt. Brit. 
Vol. 4, p. 1100 [1849] (Ochthera empidiformis); Say, Compl. Wirit. 
Vol. 2, p. 85 [1859] (Ochthera); Melander, Trans. Amer. Ent. Soc. 
Vol. 28, p. 236 (1902); Coquillett, Proc. Ent. Soc. Wash. Vol. 5, 
p. 264 (1903); Slosson, Ent. News, Philad. Vol. 14, p. 269 (1903); 
Coquillett, Proc. U. S. Nat. Mus. Vol. 18, p. 391 (1905). 
(1i) Hemerodromia brachialis, nov. sp. — Length 3 mim. Head, thorax, and the greatly swollen front femora 
black, rather shining, remainder of legs, halteres and mouthparts whitish-yellow. antennze brown. Face almost obliterated 
at the middle, white pruinose, lower occipital orbits white-pollinose. "Thorax very lightly dusted, more noticeable in 
profile, scutellum and metanotum finely rugulose; abdominal hairs sparse and yellow, pygidium large, globose, the upper 
valves ham-shaped and apically pointed, the large middle valves curved, parallel-sided and apically truncate but 
terminating in a hook above, ovipositor small and black. Front femora slightly longer than their coxe, with close 
small black teeth below, which are fringed on each side with longer yellow spine-like hairs, the black color paler at 
knee, front tibize two-thirds as long as femora. Wings hyaline, veins blackish except at yellowish base, pedicel of fourth 
vein as long as fork, sections of fifth vein 1 : 1.2. 
Three males and one female; La Suiza de Turrialba, Costa Rica, April-July, Pablo Schild collector, in Melander 
Collection. Readily distinguished by the large black front femora. 
(2) Hemerodromia brunnea, nov. sp. — Female. Length 3 mm. Near vcaftus Coquillett, but the fork of the 
fourth vein is opposite the end of the second vein and thus the pedicel is longer than the second posterior cell. Head black 
cinereous, the lower orbits prominently white-pruinose; antennz yellow, the third joint twice as long as broad and three 
times as long as its arista; eyes subcontiguous on the middle of the face, the lower facets large; proboscis yellow, its tip 
blackened. Mesonotum brown, opaque pollinose, with two faint indications of broad darker vittae on the anterior portion ; 
scutellum strongly convex, chocolate-brown like the metanotum; pleurz brownish yellow; abdominal tergites brown, venter 
and incisures yellow, ovipositor conical and brown. Front femora subequal in length to their coxe, with two rows of 
moderate yellow setae beneath, front tibize terminated by a long slender black spine. Wings normal, veius pale, the second 
to the fifth sections of the costa proportioned 4 : 1.2:3 : 1, sections of the fourth vein proportioned 1:0.7:2.3: 1.7, of the fifth 
vein, o.8 : 1, distance between the crossveins nearly three times as long as the posterior crossvein. 
One specimen; Clayton, Georgia, May, collected by J. C. Bradley. 
(3 Hemerodromia dorsata, nov. sp. — Female. Length 33 mm. Head, dorsum of the thorax and abdominal 
tergites black, pleurze, sternites and lateral membrane yellow. Mouthparts and antenne yellow. "Thorax almost shining, 
tergites matt. Legs yellow, front coxze slender, as long as their femora, the latter without basal tubercle, but with a pair 
of spines, front tibiz three-fifths as long as their femora, with a rather strong black terminal spine. Ovipositor not longer 
than the broad last abdominal segment. Halteres entirely pale yellow, Wings nearly hyaline, veins blackish except at the 
base, sections two to five of the costa proportioned rz : o.8 : 0.9 : o.3, fork of the third vein much beyond the end of the second 
vein, fringe of the hind margin equal in length to the anterior crossvein. 
One specimen; Tjibodas, Mount Gede, Java, from the Bryant and Palmer collection. "Type in the U. S. National 
Museum. 
