HuTTON. — On the Crane-flies of Neio Zealand. 



33 



Key to the New Zealand Genera. 



Tibiae without spurs ; eyes approximated. 

 One submarginal cell. 



No marginal cross-vein .. .. .. Rhamphidia. 



A marginal cross-vein. 



Auxiliary ends near the origin of second 

 longitudinal. 

 Rostrum shorter than the head and 



thorax . . . . . . . . Dicranomyia. 



Rostrum longer than the head and 



thorax . . . . . . . . Gcranomyia. 



Auxiliary ends much beyond the origin of the 

 second longitudinal. 

 Sixth and seventh longitudinals con- 

 nected by a cross-vein . . . . Trochobola. 



Sixth and seventh longitudinals not 



connected .. .. .. Limnohia. 



Two submarginal cells. 



Prtefurca ends in the first submarginal cell . . Molojphilus. 

 Prefuroa ends in the second submarginal cell. 

 Three last joints of the antennae abruptly 



smaller . . . . . . . . Trimicra. 



Three last joints of the antennae like the 



others . . . . . . . . Gnopho^nyia. 



Tibiae with apical spurs ; eyes widely separated ; two 

 submarginal cells. 

 Antennae simple. 



Rostrum not elongated . . . . . . Limnopliila. 



Rostrum much elongated . . . . . . Tinemyia. 



Antennae uni-pectinate, i , or serrate, ? . 



Antennas 16- to 22-jointed . . . . . . GynopU&tia. 



Antennae 32- to 39-jointed . . . . . . Cerozodia. 



Genus Dicranomyia, Stephens (1829). 



" One submarginal and four posterior cells ; marginal 

 cross- vein at the tip of the first longitudinal ; tip of the 

 auxiliary vein generally opposite or before the origin of the 

 second longitudinal, seldom beyond it. Antennae 14-jointed. 

 Eostrum not longer than the head. Tibiae without spurs. 

 Empodia indistinct or none. Male forceps formed by two 

 movable, soft, fleshy, subreniform lobes, and a horny style 

 under them " (Osten-Sacken). 



A. Wings with spots. 



Dicranomyia vicarians. 



Limnohia vicarians, Schiner, Eeise der " Novara," Diptera, 

 p. 46 (1868); Cat. Dipt, of N.Z., p. 17. Dicranomyia 

 vicarians, Mik, Verb. z.-b. Wien, xxxi., p. 196, pi. xiii., 

 fig. 1 (1881). Limnohia chorica, White, MSS. 



Eust-red, with yellow legs. Wings pale-yellow, with a 

 small spot at the origin of the second longitudinal and a larger 

 one on the edge. Length, 5-6 mm. 



Hah. Auckland. Unknown to me. 

 3 



