186 C. R. Osten Sacken: | 
as still living in South-Africa. In the Museum in Stockholm I have 
seen recent specimens brought from Caffraria by Wahlberg. 
Diceranoptycha. 
O. Sacken, Proc. Acad. Nat. Sc. Phil. 1859; Monogr. ete. IV, p. 116; 
Tab. 1, f. 8, wings. 
A small number of species in Europe and North-America. 
Orimarga. 
O. Sacken, Monogr. etc. IV, p. 120; Tab. 1, f. 9, wing; 1869. 
Ninguis Wallengren, Entom. Tidskr. Stockholm 1881. (Synonymy 
by Mik, Wien. Ent. Ztg. 1882, p. 99.) 
Two or three species have been found in different parts of 
Europe (Sweden, Austria, Germany, North of Italy, England). ©. ano- 
mala Mik, Wien. Ent. Z. 1883, p. 201 shows some pecularities in 
the venation, especially in the position of the anterior crossvein; 
the characteristic length of the praefurca and the position of the 
great crossvein are the same. 
Diotrepha. 
O. Sacken, Catal. of the N. Am. Dipt. 1878, p. 27 and p. 219, 
note 28. 
This, as yet imperfecetly known genus occurs in the southern 
United States and in Cuba; a single species has been described. 
Elliptera. 
Schiner, Wiener Entom. Monatschr. VII, pag. 222, 1863; O. Sacken, 
Monogr. jete. "IV, p. 122.7Rab. 1,.8.10: 
Besides the single european species, described by Schiner and 
Egger (Verh. Z. B. Ges. 1863, p. 1108), there is a Californian 
species, which differs from the former by a closed discal cell 
(Elliptera clausa O. S. Western Diptera, p. 198). The forceps 
of the male, which I observed in life, resembles that of a Lim- 
nophila, and not all that of a Dieranomyia. In my Mono- 
graph I alluded to a second, undescribed european species in Loew’s 
collection; it may perhaps be the same as the E. hungarica, described 
since by Mr. Madarassy (in Termeszetrajzi füsetek etc. Vol. V, p. 27; 
Buda Pest 1881). 
Prof. Mik (Wien. Ent. Z. V, p. 337—544, Tab. 6; 1886) gave 
a detailed description, with figures, of the larva and pupa of .Elli- 
ptera, as well as of the male forceps and of the ovipositor of the 
imago. The larva lives in the sheets of water running over stone 
or wooden walls, and is enclosed in a cocon-like sheath. 
