38 
Psyche 
[February 
Tabaninse: Stihasoma, Dichelacera, Dasyommia, Selasoma, 
Snowiellus, Hyhoniitra, Therioplectes, Tahanus, Atylotus^ 
Lepiselaga, (and Merycomyia, which was not known to 
Enderlein) . 
Diachlorinse : Diachlorus. 
Hsematopotinse; Hcematopota. 
A commendable feature of Enderlein’s work is the desig- 
nation of genotypes, though in some cases they are manuscript 
names of as yet undescribed species. Unfortunately the author 
has evidently failed to inquire whether types had not been pre- 
viously selected for some of the older genera. Since this is likely 
to cause some confusion in the future, I may point out some of 
the cases I have noticed. 
Diachlorus Osten Sacken. The genotype is Tahanus hi- 
cinctus Fabricius, as designated by Coquillett (1910); not 
Tahanus f err ugatus Fabricius as given b}" Enderlein. 
Dichelacera Macquart. The type of this genus is Dichelacera 
unifasciata Macquart, as designated b}^ Coquillett (1910); 
Enderlein gives Tahanus cervicornis Fabricius. 
Corizoneura Uondani. The type of this genus is T anyglossa 
cethiopica Thunberg (Syn.: Pangonia apjjendiculata Macquart), 
as designated by Coquillett (1910) and again by Austen in 1920 
(Bull. Ent. Research, XI, p. 139). Enderlein’s genus Corizoneura, 
with Pangonia angustata Macquart as type, is entirely different 
and its characters seem to agree with those of Duplex Austen 
(Type: Pangonia suavis Loew), a genus evidently overlooked 
by Enderlein, 
Erephopsis Rondani. The genotype is Pangonia fulvithorax 
Wiedemann, as designated by Coquillett (1910). Enderlein 
gives Tahanus guttatus Donovan. 
Lilcea Walker. Pangonia lurida Walker was designated as 
type by Coquillett (1910). Enderlein gives as such Pangonia 
roei King. 
Melpia Walker. Pangonia fidvithorax Wiedemann, is the 
genotype designated by Coquillett in 1910, which makes this 
generic name a strict synonym of Erephopsis Rondani. Melpia 
Enderlein, with Melpia exeuns Walker as type, if really generic- 
ally distinct from Erephopsis, will need a new name. 
