ART. 4. 
1894. 
1898. 
1901. 
1902. 
1903. 
1903. 
1904. 
1904. 
1904. 
1904. 
1908. 
1909. 
1910. 
1912. 
1912. 
1913. 
1913. 
1914. 
1915. 
1917. 
1920. 
REVISION OF THE FAMILY THEREVIDAE—COLE. 133 
CoquiL_eTT, Journ. New York Ent. Soc., vol. 2, pp. 97-101 (‘‘A Revision of the 
Dipterous Family Therevidae.’’ The genera Metaphragma and Nebritus are 
erected and six new species described in all). 
CoquiLueTr, Journ. New York Ent. Soc., vol. 6, p. 187 (description of Henico- 
myia hubbardt). 
WiutsTon, Biol. Centr. Amer. Dipt., vol. 1, p. 297 (in the supplement notes 
on two species are given). 
JoHNsoN, Can. Ent., vol. 34, p. 241 (description of P. grandis). 
AupricH, Catalogue Dipt. of N. America, pp. 246-249 (lists 6 genera and 71 
species). 
Apams, Kans. Univ. Sci. Bull., vol. 2, p. 222 (description of P. acuta). 
Apvams, Kans. Univ. Sci. Bull., vol. 2, pp. 443-444 (in a paper on new diptera 
three new Therevids are described). 
CoquitLETT, Proc. Ent. Soc. Wash., vol. 6, p. 91 (in a paper on Central Amer- 
ican diptera describes P. pruinosa). 
CoquiLLETT, Proc. Ent. Soc. Wash., vol. 6, p. 177 (in a paper on new diptera 
describes P. aurantiaca). 
CoquitLeTT, Invertebr. Pac., vol. 1, p. 23 (in a list of Californian and Nevadan 
diptera by C. F. Baker Thereva flavicauda is described). 
Wituston, Manual of North American Diptera, pp. 205-207 (gives a general 
account of the family with a table of genera). 
CocKERELL, Bull. Amer. Mus. Nat. Hist., vol. 26, p. 10, and the same volume, 
p- 68 (descriptions of two fossil species of Therevidae). 
Hystopr, Proc. Ent. Soc. Wash., vol. 12, p. 98 (notes on early stages of T'hereva 
egressa). 
Kro6seEr, Stett. Ent. Zeitg., vol. 73, pp. 209-272. <A revision of the Therevi- 
dae of North America (tables of species for Thereva and Psilocephala and 
several new species described). 
Fre.t, New York State Mus. Bull., no. 155, p. 121 (larva and pupa of P. melam- 
podia described). 
Kréser, Genera Insectorum, p. 148, 66 pages and 3 plates (the genera and 
species of the Therevidae of the world with tables and generic diagnoses). 
Jounson, Bull. Amer. Mus. Nat. Hist., vol. 32, art. 3, pp. 58-59 (in a list of 
the diptera of Florida records 13 Therevids, including P. obscura Coquillett). 
Kroner, Beiheft z. Jahrb. Hamb. Wiss. Anstalten, vol. 31, p. 64 (describes 
14 new species from North America and gives notes an others). 
Mattocg, Bull. Ill. Lab. Nat. Hist., vol. 11, p. 324 (notes on larva and pupa 
of P. haemorrhoidalis). 
Mattocg, Bull. Ill. Lab Nat. Hist., vol. 12, pp. 296-398 (a short account of 
the family characters and biology). 
CocKERELL, Proc. U. 8. National Museum, vol. 57, p. 251 (in a paper on fossil 
insects describes a new genus and species of Therevidae). 
