Studies on Tipulidae II. 235 
is proposed for Limnobia Trentepohlii Wied. which, according to 
Mr. Bigot, must be called T’rentepohlia limnobioides Bigot. I have 
shown in my Diptera from the Philippine Islands (Berl. Ent. Z. 
1882, p. 90) that Wiedemann’s species is very probably related to 
Mongoma Westw., which has nothing to do with Limnophtila. 
What species Mr. Bigot places in his genus Limnophila 
without discal cell is not explained in his paper and I am not 
aware of the existence of any such species. To sum up: the group 
Limnophilidae Bigot does not contain a single Limno- 
philid in Macquart's or in my sense, with the single exception of 
Polymera. 
The genus Limnobia Bigot is subdivided as follows (p. 470): 
Wings with four posterior cells, the second sessile. 
Wings with two submarginal cells. 
Antennae 16-jointed . . . . . Limnobia. 
Antennae 15-jointed . . . . Rondania nov. gen. 
Wings with a single submarginal al 
Antennae 16-jointed . . . . .„ Dohrnia nov. gen. 
Antennae 14-jointed . . . . . Numantia nov. gen. 
Beyond this table, none of these genera are in any way defined; 
no types or examples of species belonging to them are named. Jud- 
ging from the characters given in the table, their interpretation 
would be as follows: 
Limnobia Bigot answers those Limnophilae (0.8.) which have 
only four posterior cells; among the european species Limnophila 
platyptera Macq. (hospes Egger) belongs here. 
Numantia Bigot corresponds to Limnobia O. S. and Dicra- 
nomyia O. S. combined. 
Dohrnia Bigot (preoce. Newman, Col. 1851) would include all 
the Limnobina anomala. 
Rondania Bigot (preocc. Desv. Dipt. 1850) remains doubtful, 
as 15-jointed antennae, as far as I know, do not occur among Lim- 
nobina. 
The other new genera proposed by Mr. Bigot in the same 
paper are: 
Variegata (p- 456; on p. 471 however it is called Variptera) 
for Gynoplistia variegata, which is to be called Variegata gyno- 
plistioides Bigot. 
Goureautia for Oylindrotomae with four posterior cells; which 
would therefore include the now adopted genera Liogma, Triogma 
and Phalacrocera. No other description is given, nor is any type 
or example named. 
