PROC. ENT. SOC. WASH., VOL. 22, NO. 2, FEB., 1920 33 



Notes on some new species of the genus Dioctria (Asilidae). 



Psyche, 24, No. 4, August, 1917, pp. 117-199. 



Describes D. longicornis new species and D. I. var. tibialis new variety 

 from this region. 

 Coquillet, D. W. 



New North American Diptera. 



Proc. Ent. Soc. Wash., 6, 1904, pp. 166-192. 



Leptogaster virgatus n. sp., described from specimens, part of which were 

 collected at Washington, D. C., June 22 (Banks), pp. 177-8. 

 Hine, Jas. S. 



Robberflies of the genus Asilus. 



Ann. Ent. Soc. Am. II, No. 2, June, 1909, pp. 136-170, Pis. 22-23. 



Records 3 species from the vicinity of Washington, for one of which a new 

 name is proposed (A. fuscatus), and of one of which (A. angiistipennis) the 

 original description is given. 



Robberflies of the genera Promachus and Proctacanthus. 



Ann. Ent. Soc. Am. IV, No. 2, June, 1911, pp. 153-172. 



One species from this vicinity. 

 Johnson, Chas. W. 



Notes on the species of the genus Dioctria. 



Psyche, 25, No. 5, October, 1918, p. 103. 



D. banksi new name for D. longicornis Banks, 1917, not Meigen, 1820. 

 Loew, H. 



Diptera americae septentrionalis indigena, Centuria secunda, Vol. 1, 1861, 

 pp. 60-62. 



Leptogaster varipes and L. tenuipes described from the District of Columbia. 

 Centuria septima, Vol. 2, 1865-1872, pp. 76, 77, 83. 



Pygostolus argentifer, P. pictus and Diogmites miscellus described from the 

 District of Columbia. 

 McAtee, W. L. 



A sketch of the Natural History of the District of Columbia, etc., Bull. 1, 

 Biol. Soc. Wash., May, 1918, 142 pp., 5 maps. 



Records 12 species of Asilidae from the region, pp. 91, 93, 95, 97, and 108. 



Key to the Nearctic species of the genus Laphria (Diptera, Asilidae). 



Ohio Journ. Sci., 19, No. 2, December, 1918 (Jan. 18, 1919), pp. 143-170, 

 Pis. 10-11. 



Describes L. aktis, index, ithypyga, sicula and winnemana, from material 

 in part from our region, and records 3 other species. 



Notes on the Nearctic Nusa (Diptera, Asilidae). 

 Ohio Journ. Sci., 19, No. 4, February 27, 1919, pp. 244-248, 5 figs. 

 Records N. fulvicauda from the region. 

 Osten Sacken, C. R. von. 



A list of the Leptidae, Mydaidae and Dasypogonina of North America. 



Bull. Buffalo Soc. Nat. Sci. 2, 1874, pp. 169-187. 



Records from the District of Columbia, only the species described by Loew. 



