30 
Psyche 
[February 
Rhabdotylus Ad. Lutz, Mem. Inst. Osw. Cruz, VI, 1914, 
p. 166. Type: Tahanus vlcmiventris Wiedemann, 1828. South 
America. 
Poecilosoma Ad. Lutz, Mem. Inst. Osw. Cruz, VI, 1914, 
p. 167. Type: Tahanus quadripunctatus Pohricius, 1805. South 
America. 
Rhigioglossa Wiedemann, Aussereurop. Zweifl. Ins., I, 
1828, p. 105. Used in the combination ^^Rhigioglossa testacea’^ 
as a synonym of Rhinomyza edentula Wiedemann, which thus 
will be its genotype. The name takes precedence over Erodior- 
hynchus Macquart, 1838, based upon the same species. 
Rhynomyza Surcouf, Bull. Mus. Hist. Nat. Paris, XV, 1909, 
p. 260. Misspelling of Rhinomyza. 
Stenotahanus Ad. Lutz, Mem. Inst. Osw. Cruz, VI, 1914, 
p. 167. Type: Tahanus tceniotes Wiedemann, 1828. South 
America. 
Stictotahanus Ad. Lutz and A. Neiva, Mem. Inst. Osw. 
Cruz, VI, 1914, p. 72. The name is used in an enumeration of 
species for Stictotahanus maculipennis (Macquart). Since this 
is a described species the generic name has a standing in nomen- 
clature, even though the genus has apparently not been hitherto 
defined. 
In the case of the new generic names proposed by Ad. Lutz 
in Mem. Inst. Osw. Cruz, VI, 1914, pp. 166-168, the only pub- 
lished descriptions are contained in a key and are not accom- 
panied by references to species. In a previous article by Lutz 
and Neiva, however, which appeared in the same volume (pp. 
69-80), these new names have been used in enumerations of 
species and I have selected genotypes from among them. Cryp- 
totylus alone has apparently not yet been used in connection with 
a specific name so that it still is a nomen nudum. Ad. Lutz also 
closes his article with the statement (p. 168) that it was published 
before (in 1913) in the Brazilian journal ‘^Brazil Medico.” I 
have been unable to discover whether his new generic names 
should therefore be properly dated from 1913, but it would 
appear that they were not used in connection with specific names 
previously to 1914. Many of Ad. Lutz’ proposed genera have 
not been noticed in the Zoological Record. 
