531 



Syrphidae 

 Jones, Chas. R. 



1922. A contribution to our knowledge of the Syrphidae of Colo- 

 rado. Bui. Agr. Exper. Sta. Colorado, 269: 1-70. ]ils. 1-5, 

 col. pis. 6-8. 



Metcalf, C. L. 



1913. Life-histories of Syrphidae. V. Ohio Nat., 13: 81-93, pis. 



4-5. 

 1913a. The Syrphidae of Ohio. Bui. Ohio State Univ., 17: 8-123, 



3 figs. pis. 1-11. 

 1916. * Syrphidae of Maine. Bui. Maine Agr. Exper. Sta., 253 : 



193-264, pis. 28-37. 



OSBURN, R. C. 



1913. Syrphidae in the hydrophytic area. Journ. N. Y. Ent. 

 Soc, 21: 66-67. 



Consult also papers by Deling, 1882, 1888, and Brauer, 

 1883, General Diptera, p. 507. 



Sciomyzidae 

 Dyar, Harrison G. 



1903. Illustrations of the earlj' stages of some Diptera. Proc. 

 Ent. Soc. Washington, 5: 56-58, pi. 1. 



Neediiam, James G., and Betten. Cornelius 



1901. Aquatic in.sects in the Adirondacks. Bui. X. Y. State 

 Mus., 47: 577-581, pi. 14. 



Ephydridae 

 Aldrich, J. M. 



1912. The biology of some western species of the Dipterous genus 

 Ephydra. Journ. N. Y. Ent. Soc, 20: 77-99, pis. 7-9. 



Crawford, D. L. 



1912. The petroleum fly in California, Psilopa pclrolei Coq. Pom. 

 Journ. Ent. Zool., 4: 687-097, pi. 



HiNE, James S. 



1904. On Diptera of the family Ephydridae. Ohio. Xat., 4: 63- 

 05. 



Katiiariner, L. 



1899. Lebenszahigkeit der Larven von Ephydra riparia Fall. 

 (Cacnia halophila v. Heyden). Illust. Zeitsch. Ent., 4. 13-44. 



Keilin, D. 



1920. On some dipterous larvae infesting the branchial chambers 

 of land-crabs. Ann. Mag. Nat. Hist. (9) 8: 601-608, 8 figs. 



