502 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 37. 



Ablabesmyia Johanxsen, Bull. 86, N. Y. State Mus., p. 125, 1905. 24 species. 

 Type, Tipula monilis Linn/Eus, the sixth species, by present designation. 



Ablautus LoEW, Berliner Ent. Zeitschr., vol. 10, p. 37, 1866. 1 species. Type, 

 Ablautus trifaritis Loew. 



Acanthina Wiedemann, Auss. Zweifl. Ins., vol. 2, p. 50, 1830. 3 species. Type, 

 Clitellaria elongaia Wiedemann, the third species, by designation of Brauer, Denkschr. 

 Kais. Akad. Wiss. Wien, vol. 44, 1882, p. 86, Not Acanthina Fischer, 1806. Equals 

 Artemita Walker, 1854. 



Acanikinomyia Hunter, Trans. Amer. Ent. Soc, vol. 27, p. 129, 1900. Change of 

 name for Acanthina Wiedemann, 1830, not of Fischer, 1806. Type, Clitellaria 

 elongata Wiedemann. Equals Artemita Walker, 1854. 



Acanthocnema Becker, Berliner Ent. Zeitschr., vol. 39, p. 136, 1894. 3 species. 

 Type, Cordilura nigrimana Zetterstedt, by original designation. 



^ca??</iomera Wiedemann, Dipt. Exot., p. 60, 1821. 1 species. Type, Acanthomera 

 picta Wiedemann. Equals Pantophthalmus Thunberg, 1819. 



Acaulona Wulp, Biol. Centr.-Amer., Dipt., vol. 2, p. 4, April, 1888. 1 species. 

 Type, Acaulona costata Wulp. Syn., Euacaulona Townsend, 1908; Euomogenia 

 Townsend, 1908. 



Acemya Desvoidy, Essai Myod., p. 202, 1830. 1 species (as 3). Type, Tachina 

 acuticornis Meigen. Syn., Agculocera Macquart, 1855. 



Achaetomus Coquillett, Can. Ent., vol. 39, p. 75, March, 1907. 1 species. Type, 

 Achsetomus pilosus Coquillett. 



Achwtoneura Brauer and Bergenstamm, Denkschr. Kais. Akad. Wiss. Wien, vol. 

 58, p. 333, 1891. 5 species. Type Masicera frenchii Williston, the first species (as 

 hesperus, new species), by present designation. Equals Frontina Meigen, 1838. 



Achalcus LoEW, Neue Beitr., vol. 5, p. 30, 1857. 2 species. Type, Porphyrops 

 flavicollis Meigen, the first species, by present designation. 



Acicephala Coquillett, Journ. N. Y. Ent. Soc, vol. 6, p. 163, 1898. 2 species. 

 Type, Acicephala polita Coquillett, the first species, by original designation. 



Acidia Desvoidy, Essai Myod., p. 720, 1830. 2 species. Type, Tephriiis cognata 

 Wiedemann, the second species, by designation of Rondani, Bull. Soc. Ent. Ital., 

 vol. 2, 1870, p. 10. Syn., Euleia Walker, 1836; Epidesmia Rondani, 1856; Myoleja 

 Rondani, 1856; Prionfmera Rondani, 1861; Philopthylla 'Ro'Kdani, 1870. 



Acidigona Loew, Monogr. Dipt. N. Amer., vol.3, p. 285, 1873. 1 species. Type, 

 Trypeia melanura Loew. 



Aciura Desvoidy, Essai Myod., p. 773, 1830. 2 species. Type, Aciura femoralis 

 Desvoidy, the first species, by designation of Rondani, Dipt. Ital. Prodr.,vol. 1, 1856, 

 p. 113. 



Acnemia Winnertz, Verb. Zool.-Bot. Ges. Wien, vol. 13, p. 798, 1863. 3 species. 

 Type, Leia nitidicoUis Meigen, the first species, by designation of Johannsen in 

 Wytsman's Gen. Ins., Dipt., Mycet., 1909, p. 63. 



Acontistoptera Brues, Amer. Nat., vol. 36, p. 373, May, 1902. 1 species. Type, 

 Acontistoptera melanderi Brues. 



Acreotrichus Macquart, Dipt. Exot., Suppl. 4, p. 121, 1850. 2 species. Type, 

 AcirotricJtus gibbicornis Macquart, the first species, by present designation. 



Acrocera Meigen, Illiger's Mag., vol. 2, p. 266, 1803. 1 species. Type, Syrphus 

 globidus Panzer. Syn. , Pontcrocera Mik, 1886. 



Acrochaeta Wiedemann, Auss. Zweifl. Ins., vol. 2, p. 42, 1830. 1 species. Type, 

 Acrodiuia fasciata Wiedemann. 



Acrocholidia Kolenati, Wien. Ent. Monatschr., vol. 1, p. 62, 1857. 2 species. 

 Type, Acrocholidia bechsteinii Kolenati, the first species, by present designation. 

 Equals Nycteribia Latreille, 1796. 



Acrochordonodes Bigot, Bull. Soc. Ent. France for 1878, p. 97, 1878. 1 species. 

 Type, Acrochordonodes vittatus Bigot. Equals Senogaster Macquart, 1834. 



