LITERATURE. 
The following list of literature by no means claims 
to be complete, and the greater part of the works men- 
tioned I have not seen, it being quite impossible at the 
present time to obtain the works that have been published 
recently abroad; especially all the Russian works mentio- 
ned are quite unknown to me. A number of the works 
quoted here treat the North American or tropic species 
and therefore do not directly touch the present article; 
although I am of the opinion that it should be of interest 
to se the quantity of articles that have appeared on such 
a small portion of the chalcid flies as the group on which 
I have worked, as well as it could be of some impor- 
tance to have a list of the main part of the literature 
which treat this group. 
Arch. Java Suikerind. 1896. Afl. 10, 21 p. p. Afl. 13, 21. 
Ashmead. Classification Of The Calcid Flies. Memoirs Of The Car- 
negie Museum. Vol. I 1904 no 4. p. 358 & p. 521. 
— Orange Insects 1880 p. 33. 
— Canad. Entomol. XX. 1888 p. 107. 
— Journal Cincinnati Soc. Nat. Hist. XVII. 1894. p. 171. 
— Ent. News Philadelphia. XI. p. 616. 
— Journal New York Entomol. Soc. XII. 1904. p. 165. 
Aurivillius. Ent. Tidsskrift vol. 18. p. 250. Stockholm 1897. 
Barroetavena & Girola: Bol. Minist. Agric. Buenos Aires XX. ae 
Bergsøe. Fra Mark og Skov 1916. I. p. 457. Å 
Bodkin. Il. Board of Agric. Brit. Guiana. Demerara VI no. 4. 1913. 
p. 188 
— Rpt. Dept. Sci. Agric. (Brit. Guiana) 1914—15. Georgetown. 
Borodin. Friend of Nature. Petrograd. XI. 1916. p. 126. 
Brethes. Ann. Mus. Buenos Aires. XXIV. p. 99. 
Britton. Connecticut Agric. Expt. Sta. New Haven. Bull. 182. 1914. 
