240 Ins. 
DIPTEKA. 
deyer, by invagination of the epithelium. Endogenesis plays a much 
greater part in the development of these organs than has hitherto been 
supposed. 
Tam/pus maculatus , Meig. Note on larva ; Hammond, P. L. S. 
1875-80, p.liii. 
Ceratopogon sp. (?) possibly = Simuliiium vexans, Mik. Its occurrence 
in the Auckland Islands noticed ; Raynal & Handlirsch, Verh. z.-b. 
Wien, xxxiii. p. 246. 
Didymophleps , g. n., Weyenbergh, S. E. Z. xliv. p. 108. Allied to Cera- 
topogon. Type, D. hortorum , sp. n., 1. c. p. 110, woodcuts, Argentine 
Republic. 
■New species : — 
Chironomus nitidicollis , eurynotus , p. 179, transgresms , ripicola , hume- 
ralis , p. 180, and gracilentus , p. 181, Holmgren, Ent. Tidskr. iv., Waigats 
and Novaya Zemlya. 
Smittia longipennis , id. 1. c. p. 181, Matotshkin. 
Ceratopogon pusillus, id. 1. c. p. 182, Chabarowa Bay. 
Thalassomyia congregata, Tomosvary, Term, fiizetek, vii. p. 19, Hun- 
gary, Servia. 
Tipulidje. 
Meinkiit, F. Mochlonyx (Tipula) culiciformis, De Geer. Overs. Dan. 
Selsk. 1883, pp. 1-19, pi. i. (Resume, pp. 7-11), and Ann. N. H. (5) 
xii. pp. 374-387. 
This species has been lost sight of since the time of De Geer, and 
although the type of Corethra , Meig., C. plumicornis , Meig., has latterly 
become the accepted type of Corethra ; now that the insect itself has been 
discovered, it proves to belong to Mochlonyx , Loew. The generic and 
specific characters of the species are given in detail, and fully illustrated. 
Table of the European genera of the Limnobiina anomala, Ost.-Sack.; 
Mik, Wien. ent. Z. ii.p. 199. 
Trichocera versicolor, Loew, = maculipennis , Meig. ; id. Verh. z.-b. 
Wien, xxxiii. pp. 189 & 190. 
Tipula marmorata, Meig., and the allied species, rufina , Meig., confusa , 
Van der Wulp (= marmorata, V. d. W., olim ), and signata, Staeg., dis- 
cussed; Van der Wulp, Tijdschr. Ent. xxvi. pp. 175-179. T. oleracea, 
•Linn., and maculosa , Hoffm., noticed and figured ; Bunney & Westwood, 
Gard. Chron. (2) xix. p. 669. T. hortensis, Meig. : habits of larva; Girsch- 
ner, Ent. Nachr. ix. p. 204. T. parvicornis, Hans., = rufina , Meig. ; Von 
Roder, Wien. ent. Z. ii. p. 56. 
Psiloconopa meigeni , Zett., discussed ; Van der Wulp, l. c. pp. 179 <£ 
180. 
Orimargula , g. n., Mik, Wien. ent. Z. ii. p. 198. Allied to Orimarga, 
Ost.-Sack., but with shorter and broader wings ; the open discoidal cell 
united with the second hind marginal cell. Type, 0. alpigena , sp. n., l.c. 
p. 199, fig. 1 (wing), Austria. 
