558 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.37. 



Laslomastix Ostex Sacken, Proc. Acad. Nat. Sci. Pliila. for 1859, p. 238, 1860. 

 1 species. Type, Limnnbia macrocera Say. Equals Phylidorea Bigot, 1854. 



Lasiona Wulp, Biol. Centr.-Araer., Dipt., vol. 2, p. 127, 1890. 1 species. Type, 

 Lasionn multuetosu Wulp. 



Lasioneura Coquillett, Journ. N. Y. Ent. Soc, vol. 3, p. 50, 1895. 2 species. 

 Type, Lasioneura johnsoni Coquillett, the first species, by present designation. 



LnslopJithicus Rondani, Nuovi Ann. Sci. Nat. (Bologna) for 184-1, p. 459, 1844. 

 1 species. Type, Mitsca pyrustri Linn.eus. Equals Scaeva Fabricius, 1805. 



Lasiopogon LoEW, Linn. Ent., vol. 2, p. 508, 1847. 3 species. Type, Dasjipogon 

 pi/oKcIlus LoE\\'(as hirtellus Mekjen), the se(;ond species, by designation of Rondani, 

 Dipt. Ital. Prodr. , vol. 1, 1856, p. 156. Syn., Daulopogon Loew, 1874. 



Lasiops Meigen, Syst. Beschr. Zweifl. Ins., vol. 7, p. 323, 1838. 5 species. Type, 

 Musea hirticeps Fallen, the fourth species, by designation of Coquillett. Journ. N. 

 Y. Ent. Soc, vol. 9, 1901, p. 138. Equals Hydrotaea Desvoidv, 1830. {Lasiops ot 

 authors equals Opsolasia, new name. ) 



Lasioptera Meigen, Syst. Beschr. Zweifl. Ins., vol. 1, p. 88, 1818. 4 species. Type, 

 C'ecidorni/i(t alhipentiis Meigex, the third species, by present designation. Syn., Dio- 

 myza Meigen, 1818. 



Ljasiosoma Winnertz, Verh. Zool.-Bot. (ies. Wien, vol. 13, p. 748, 1863. 13 

 species. Type, Sciophila pilosa Meigen, the fourth species, by present designation. 

 Equals Sciophila Meksen, 1818. 



Lastaurus Loew, Bemerk. Asiliden, p. 11, 1851. 2 species. Type, Dasypogon 

 anthracinus Loew, the first species, by present designation. Syn., Morimna Walker, 

 1851. 



Lathyrophthalmiis Mik, Wien. Ent. Zeit., vol, 16, p. 114, 1897. 1 species. Type, 

 Conops ivneus Scopoli. Equals Tubifera Meigen, 1800. 



LatreilUa'DY.i^x oiv>Y, Essai Myod., p. 104, 1830. 5 species (as 10). Type, Musca 

 bifasdata Fabkicius, the first species, by present designation. Not LatreiUla Roux, 

 1827. Equals Belvosia Desvoidy, 1830. 



LatreiUimyia Townsend, Smiths. Misc. Coll., vol. 51, p. 105, 1908. Change of 

 name for Latreillia Desvoidy, 1830, not of Roux, 1827. Type, Musca bifasdata 

 Fabricius. Equals Belvosia Desvoidy, 1830. 



Lauxania Latreille, Hist. Nat. Crust, et Ins., vol. 14, p. 390, 1805, 1 species. 

 Tyjje, Mufica cylindricornis Fabricius. 



Larerania Theohald, Journ. Trop. Med., vol. 5, p. 183, June 16, 1902. 1 species. 

 Type, Anopheles argyritarsis Desvoidy. Not Laverania Grassi and Feletti, 1890. 

 Equals Cellia Theobald, June 16, 1902. 



Leia Meigen, Syst. Beschr. Zweifl. Ins., vol. 1, p. 253, 1818. 10 species. Type, 

 Leia fascipennis Meigen, the fifth species, by designation of Curtis, Brit. Ent., 

 1837, p. 645. Syn., Lejomya Rondani, 1856; Lejosoma Rondani, 1856; Glaphyrop- 

 tera Winnertz, 1863; Neoglaphyroptera Osten Sacken, 1878. {Leia of authors equals 

 Rondaniella, Johannsen.) 



Jjejognster Rondani, Dipt. Ital. Prodr., vol. 2, p. 166, 1857. 1 species. Type, 

 Chrysogasler splendida Meigen (as iarsatiis Mekjen). Equals Chrysogaster Meigen, 

 1800. 



Lejomya RoyiDANi, Dipt. Ital. Prodr., vol. 1, p. 195,1856. 1 species. Type, Myce- 

 tophila bimactdata Meigen. Equals Leia Meigen, 1818. 



Lejopjs Rondani, Dipt. Ital. Prodr., vol. 2, p. 33, 1857. 1 species. Type, Mallota 

 vittata Meigen. Equals Helophilus Meigen, 1822. 



Lejosoma Rondani, Dipt. Ital. Prodr'., vol. 1, errata, 1856. Change of name of 

 Lejomya Rondani, 1856. Type, Mycetophila bimnetilata. Meicsen. P^quals Leia Meigen, 

 1818. 



Lemtopeza Macquart, Ins. Dipt. Nord France, Separata, p. 143, 1827. 1 species. 

 Type, Ocydromia Jlavipes Meigen {-ds Jiavipes, new species). 



