Studies on Tipulidae LI. 231 
drome, I deemed it worth while, as a matter of historical interest, 
to investigate the synonymy of the genera provisionally proposed by 
him in that sketech. My inverstigation was based upon the scanty 
data furnished by himself in his publications, as well on a few types 
which I found in Mr. Bigot’s collection in Paris, and in Prof. Ron- 
dani’'s own collection, now in Florence. The latter, unfortunately, 
proved most disappointing in regard to the Tipulidae, as they seem 
to have been long ago distroyed by mould and insects. Only insi- 
gnificant fragments have been preserved. 
I shall examine Mr. Rondani’s genera one by one, in the order 
in which they are found in the first volume of his Prodrome. 
I. Limnobina. 
1. Erioptera (Meig.) Rondani. The type Erioptera obscura 
Meigen proves that it is our Molophilus. 
2. Chemalida Rond. is the Erioptera sensu strieto of my 
Monograph; it is well defined by the mention of the length of the 
seventh vein. 
3. Ilisomyia Rond., with J. nubipennis n. sp. which has 
never been described. I found in Florence an 2. nebulosa Rond. 
which I believe to be meant for nubipennis. Itis a Rhypholophus 
the open discal cell of which coalesces with the second posterior cell. 
4. Ilisophila Rond. The type is Prioptera lutea M., which 
is an Erioptera sensu strieto, that is a Chemalida Rond. There 
is evidently an error in the identification of the type-specimen. The 
specimen in Mr. Bigot’s collection is an Empeda, and this latter 
genus agrees with Rondani’s wording: venula transversaria adest 
quae conjungit secundam longitudinalem quartae ante connectionem 
ejus cum tertia. 
5. Ormosia Rond. is a Phypholophus with nodulose antennae, 
and has been so understood by Schiner, who introduced it as a sub- 
division of his genus Dasyptera (Fauna Austr. II, p. 537). 
6. Spyloptera Rond. type S. meridionalis n. sp. indeser. 
I cannot make out this genus; nor did I find any trace of it in 
the florentine or Mr. Bigot’s collections. The statement „areola ba- 
silaris postica satis brevior antica” describes a structure like Ori- 
marga;, but the name Spyloptera (it ought to be Spiloptera) in- 
dicates a species with spotted wings. 
7. Limnaea (Limnoica in Corrigendis, Vol. IV); type Erio- 
ptera flavescens Lin. There must again be an error in the deter- 
mination here, because E. flavescens is an Erioptera s. s., that is 
a Chemalida Bond. 
