1985] 
Woodley — Nothomyia 
89 
As can be seen from the above key, Nothomyia fallax is most 
similar to N. lopesi. I have examined two pairs of N. lopesi, which 
had been compared to the type by Lopes. Three of the specimens 
were from the type locality and were probably collected at the same 
time as the types. The overall coloration and general appearance of 
the two species are quite similar, as are the male genitalia. In N. 
lopesi , the apex of the aedeagal complex is slightly more truncate, 
the gonocoxal apodemes are slightly longer, the apical portion of 
the gonostylus is very slightly more robust, and the shape of the 
medial invagination of the gonostylus in slightly different. With so 
few specimens available, the variability of these slight differences 
cannot be assessed. It is possible that larger series will render the 
differences less useful in distinguishing the species. 
Acknowledgements 
I wish to thank H. Schumann of the Zoologisches Museum der 
Humboldt-Universitat, Berlin, East Germany, for the loan of the 
holotype of N. fallax, and William J. Turner of the James Entomo- 
logical Collection, Washington State University, Pullman, Washing- 
ton, for the loan of material of N. lopesi. I also am indebted to 
Wayne N. Mathis, Department of Entomology, Smithsonian Insti- 
tution, and R. V. Peterson and R. E. White of the Systematic 
Entomology Laboratory for reviewing the manuscript. 
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