ART. 9 TWO-WINGED FLIES OF TEIBE MILTOGRAMMINI ALLEN 83 



abdomen densely poUinose, with transverse rows of small, sharply 

 defined, black spots; apical cell closed at margin of wing. 



The genus is represented by several European species, one of which 

 is also widely distributed over North America. 



TAXIGRAMMA HETERONEURA (Meigen) 



Miliogramma heteroneura Meigen, Syst. Beschr., vol. 6, p. .367, 18-30. — 



Zetterstedt, Dipt. Scand., vol. 3, p. 1214, 1844. 

 Taxigramma pipiens Perris, Annal. Soc. Linn. Lyons, for 1850, j). 209, 



1852. 

 Heleropterina heteroneura Macquart, Annal. Soc. Ent. France, vol. 7, 



p. 427, 1854. — ScHiNER, Faun. Austr., vol. 1, p. 503, 1862. — Pandelle, 



Rev. Ent., vol. 14, p. 313, 1895.— Villeneuve, Bull. Soc. Ent. France, 



for 1900, p. 381. 

 Elpigia pellucida Robineau-Desvoidy, Dipt. Envr. Paris, vol. 2, p. 150, 



1863. 

 Elpigia punclala Robineau-Desvoidy, Dipt. Envr. Paris, vol. 2, p. 150, 



1863. 

 Elpigia minuta Robineau-Desvoidy, Dipt. Envr. Paris, vol. 2, p. 151, 1863. 

 Heleropterina nasoni Coquillett, Ent. News, vol. 6, p. 207, 1895; U. S. 



Bur. Ent., Tech. Ser., No. 7, p. 76, 1897.— Walton, Proc. U. S. Nat. 



Mus., vol. 48, p. 181, 1914.— Reinhard, Ent. News, vol. 30, p. 281, 1919.— 



Cole and Lovett, Proc. Cal. Acad. Sci., vol. 11, p. 301, 1921. 



A single female specimen from Hungary, determined as heteroneura 

 by Prof. Karl Sajo, I have compared with North American specimens 

 of nasoni Coquillett, and another European specimen determined 

 as heteroneura by Kertesz, with the type of nasoni, and it is my con- 

 viction that the European and North American forms are conspecific. 

 In the synonomy of the three species of Elpigia proposed by Robineau- 

 Desvoid}', I have followed Bezzi and Stein.** The type of (Hete- 

 ropterina nasoni) Coquillett is located in the United States National 

 Museum, the location of the other types not known to the writer. 



The frontal vitta, antennae, palpi, abdomen, femora, and tibia 

 largely yellowish. Front at narrowest measuring 0.34, 0.34, 0.34, 

 0.34, 0.36, averaging 0.34 of the head width in five males; 0.35, 0.36, 

 0.38, 0.40, 0.40, averaging 0.38 in five females; frontal vitta at level 

 of lowest orbitals one-half to one-third as wide as either parafrontal; 

 two proclinatc orbital bristles present; the lowest bristle of the frontal 

 row much weaker than the others; third antennal joint one and one- 

 half to two times as long as the second; arista thickened on basal 

 third; parafacials bare or with microscopic black hairs. Thorax 

 densely pollinose, without black vittae; scutellum bears three pairs 

 of marginal bristles of which the intermediate pair is much the 

 strongest. The last three abdominal segments each with a trans- 

 verse row of three small round black spots on the dorsum, and two 

 other elongate spots on the lateral angles; first segment usually, 



" Kat. Pal. Dipt., vol. 3, p. 517, 1907. 



