1950] 
Fairchild — Generic Names for Tahanidae 
123 
by Miller (1945), who proposed the unnecessary name Neo- 
leptotabanus (Proc. Roy. Ent. Soc. London (B) 1^: 72). 
Leucotabanus 1913b, defined in key. 1914a, p. 71, with leucaspis 
Wied. in list. 1914b, defined in key. Type Tabanus leucaspis 
Wied. 1828 (Bequaert 1924)). 
Macrocormus 1909c, p. 29, with badius n. sp. sorbillans Wied., 
pseudosorbillans n. sp. and trizonophthalmus n. sp., 1911a, 
p. 35 with same species. 1913b, defined in key. Type Tabanus 
sorbillans Wied., 1928 (Bequaert 1924). 
Melanotabanus 1914a, p. 76. defined and with fuliginosus n. sp. 
described. Monotypic. 
Micropangonia 1922, p. 5, defined briefly by comparison with 
Erephopsis. Said to contain two species, but none named. I 
believe this to be a lapsus for Neopangonia (Lutz (q.v.) as the 
characters mentioned (open first posterior cell, long proboscis 
and small size) are those used earlier to separate Neopangonia 
from “Erephopsis’* . Since the name could be construed as 
having been defined, and hence valid, I hereby select Neo- 
pangonia pusilla Lutz 1909 as genotype, as it agrees with the 
definitions, thus making Micropangonia a synonym of Neo- 
pangonia. 
Microtabanus 1922, p. 9, defined only by having unicolorous eyes 
and being small. No species. This can hardly be construed as 
a “definition” under the rules, and I consider the name invalid 
and not preoccupying Microtabanus Fairchild 1937. 
Myiotabanus 1928, p. 59, with sarcophagoides n. sp. descr. and fig. r 
Although there is no statement that the genus is proposed as 
new, it is combined with a valid specific name and I believe 
should be considered valid. Monotypic. 
Neopangonia 1909b, p. 651, defined and with pusilla n. sp. descr. 
and fig. Monotypic. See also Micropangonia. 
Neotabanus 1909c, p. 29, with trilineatus Latr., modestus Wied. 
and 16 other named species. 1911a, with same species. 1913b, 
defined in key. 1914a, with obsoletus Wied., comitans Wied., 
ixyostactes Wied., ochrophilus Lutz, triangulum Wied., trili- 
neatus Latr. and others in list. Type Tabanus trilineatus Latr. 
1814 (Bequaert 1924). 
Odontotabanus 1918 Lutz, Araujo and Fonseca, with aurora , cin- 
erarias, fuscus. 1926 Bequaert, Exped. Amazon, p. 233, cited 
