8 4 
Psyche 
[March 
The nomenclature used in describing the genitalia of the male is 
that of Metcalf (1921). 
Acknowledgments 
I would like to thank Dr. J. R. Vockeroth for the loan of this 
material and Mr. Charles H. Nelson for his critical comments on 
this manuscript. 
References 
Carrera, Messias, and Karol Lenko 
1958. Descricao de duas especies novas de Mixogaster (Diptera, 
Syrphidae) e observacoes sobre o inquilinismo de uma delas em 
ninhos de Iridomyrmex humilis, a “formiga argentina”. Studia 
Ent. 1(3-4): 469-484. 
van Doesburg, P. H. 
1966. Syrphidae from Suriname. Stud. Fauna Suriname 9: 61-107 (The 
Hague). 
Goffe, E. R. 
1952. An outline of a revised classification of the Syrphidae on phylo- 
genetic lines. Trans. Soc. Brit. Ent. 11(4): 97-119. 
Greene, C. T. 
1955. Larvae and pupae of the genera Microdon and Mixogaster 
(Diptera, Syrphidae). Trans. Amer. Ent. Soc. 81: 1-20. 
Hartley, J. C. 
1963. The cephalopharyngeal apparatus of syrphid larvae and its re- 
lationship to other Diptera Proc. Zool. Soc. London 141(2): 
261-280. 
Heiss, E. M. 
1938. A classification of the larvae and puparia of the Syrphidae of 
Illinois exclusive of aquatic forms. Illinois Biol. Monog. 16(4), 
142 pp. in Univ. 111. Bull. 36(1): 1-142. 
Hull, Frank M. 
1949. The morphology and inter-relationship of the genera of syrphid 
flies, recent and fossil. Trans. Zool. Soc. London 26(4): 257-408. 
Keiser, Fred 
1958. Beitrag zur kenntnis der syrphidenfauna von Ceylon (Dipt.). 
Revue Suisse Zool. 65 (1): 185-239. 
Lundbeck, William 
1916. Diptera Danica. Part V, Lonchopteridae, Syrphidae. 591 pp. 
(Copenhagen). 
Martin, Charles H. 
1968. The new family Leptogasteridae (The Grass Flies) compared 
with the Asilidae (Robber Flies) (Diptera). J. Kansas Ent. 
Soc. 41(1): 70-100. 
Metcalf, C. L. 
1921. The genitalia of Male Syrphidae. Ann. Entomol. Soc. Amer. 
14: 169-228. 
