354 DIPTERA 
Progr. Posen, p. 22 (1840) : Isis, Vol. 7, p. 551 [1840] (Tachydromia) ; 
Zetterstedt, Dipt. Scand.Vol. 1, p. 275 [1842] (Tachydromia); Gimmerthal, 
Bull. Soc. Mosc. Vol. 20, p. 164 [1844] (Tackydromia); Zetterstedt, Dipt. 
Scand. Vol. 8, p. 3oo4 [1849] (Tachydromia); ibidem, Vol. 13, p. 4986 
[1859] (Tachydromia); Bonsdorff, Finl. tvàv. Ins. Dipt. Vol. r. p. 148 
[1861] (Tachydromia); Schiner, Fauna Austr. Dipt. Vol. 1, p. 89 (1862); 
Siebke, Nyt Mag. Naturvid. Vol. 14, p. 381 [1866] (Tachydromia) ; Strobl, 
Mitteil, Naturw, Ver. Steiermark, Graz, Vol. 29, p. 122 [1892] (Tachy- - 
dromia); Jahrb. Mus. Kárnten, Vol. 47, p. 205 (1901); Mitteil, Naturw. 
Ver. Steiermark, Graz, Vol. 46, p. 84 [1909] (Tackydromia). 
var. nigrofemoratus, Strobl, Mem. Soc. Esp. Nat. Hist. Vol. 3, p. 315[19o6](Tachy- Spain. 
dromia). 
var. obscurior, UD. Glasnik Mus. Bosn. Herceg. Vol. 14, p. 469 [1902] (Tachy- S. Europe. 
dromia); Mitteil. Bosn. Herzeg. Vol. 9, p. 528 [1904] (Tachydromia). 
var. pallidicoxa, Frey, Acta Soc. Sc. Fenn. Helsingfors, Vol. 37 (3), p. 8o [1913] Finland. 
(Tachydromia). 
strigifrons, Frey, Zeitschr. Hym. Dipt. Vol. 7, p. 410 [1907] ( Tachydromia). 
97. P. fasciventris, nov. sp. Washington. 
98. P. ferrugineus, Brunetti, Rec. Ind. Mus. Vol. 9, p. 40 (1913); Fauna India, 
Brit. Ind. Dipt. Vol. r, p. 376 [1920] (Tachydromia). 
99. P. flammifer, Melander, Occ. Pap. Bost. Soc. Nat. Hist. Vol. 5, p. 84 E. United States. 
100. P. ? flavescens, Rossi, Fauna Etrusca, Mantissa, Vol. 2, p. 77 [1794] (Em- S. Europe. 
fis); Bezzi, Bull. Soc, Ent. Ital. Vol. 3o, p. 152 [1899] (? Tachydromia). 
1ot. P. flavicornis, Macquart (not Meigen), Mem. Soc. Sc. Lille, p. 152[1823] France. 
(Tachydromia). 
102. P. flavicornis, Meigen, Syst. Beschr. Vol. 3, p. 83 [1822] (Tachydromia); Europe, N. Africa. 
Macquart, Dipt. N. France, Vol. 3, p. 99 (1827); Hist. Nat. Dipt. 
Vol. 1, p. 355 (1834); Zetterstedt, Dipt. Scand. Vol. 1, p. 278 [1842] 
(Tachydromia); Boitard, Man. Ent. Vol. 3, p. 324 (1843); Walker, 
List. Vol. 3, p. 509 (1849); Zetterstedt, Dipt. Scand. Vol. 8, p. 3005 
[1849] (Tachydromia); Scholz, Zeitschr. Ent. Breslau, Vol. 5 (19), 
p. 57 [1851] (Tachydromia); Zetterstedt, Dipt. Scand. Vol. 1:3, 
P- 4987 [1859] (Tachydromia); Bonsdorff, Finl. tvàv. Ins. Dipt. 
Vol. 1, p. 149 [1861] (Tachydromia); Schiner, Fauna Austr. Dipt. 
Vol. 1r, p. 88 (1862); Strobl, Jahrb. Land. Mus. Kürnt. Vol. 47, 
p. 203 (1901); Becker, Zeitschr. Hym. Dipt. Vol. 7, p. 117 [1907] 
(Tachydromia); Frey, ibidem, Vol. 7, p. 408 [1907] (Tachydromia) ; 
Med. Soc. Fenn. Helsingfors, Vol. 34, p. 21 [1908] (Tachydromia); 
Lundbeck, Dipt. Dan. Vol. 3, p. 307 [1910] (Tachydromia); Wahl- 
gren, Ent. Tidskr. Vol. 31, p. 92 [1910] (Tachydromia) ; Frey, Acta 
Soc. Sc. Fenn. Helsingfors, Vol. 37 (3), p. 76 [1913] (Tachydromia). 
flavipes, Thunberg, Nova Acta Upsalensis, Vol. 4, p. 26, var. 5b, part (1784) 
Empis). 
en ME Dipt. Exot. Suppl. Vol. 4, p. 97 (1849). 
103. P. flavicoxis, Becker, Zeitschr. Hym. Dipt. Vol. 7, p. 116 [1907] (Tachy- Algeria. 
dromia). 
104. P. flavipennis, Walker, Ins. Brit. Dipt. Vol. t, p. 130 (185r). England. 
105. P. flavi»es, Fabricius, Ent. Syst. Vol. 4, p. 406 [1794] (Emfís); Meigen, Europe, Egypt, Persia.- 
Klassif. Vol. 1, p. 233 [1804] (Empis); Fabricius, Syst. Antl. p. 142 
[1805] (Tachydromia); Fallen, Empid. p. 6, part [1815](Tachydromia); 
Biliberg, Enumeratio, p. 119 [1820] (Sicus); Meigen, Syst. Beschr. 
Vol. 3, p. 81 [1822] (Tachydromia); Macquart, Mém. Soc. Lille, 
1823, p. 152 [1823] (Tachydromia); Ins. N. France, Vol. 3, p. 97 
(1827); Hist. Nat. Dipt. Vol. r, p. 354, pl. 8, f. 10 (1834); Zetter- 
stedt, [ns. Lappon. p. 549 [1838] (Tachydromia); Loew, Progr. 
Posen, p. 22 (1840); Isis, Vol. 7. p. 551 [1840] (Tachydromia) ; 
Zetterstedt, Dipt. Scand, Vol. r, p. 273 [1842](Tachydromia); Boitard, 
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