84 Transactions. — Zoology. 



Tetanocera rara, sp. nov. 



Male. — Front and antennas reddish-yellow ; lower face, 

 palpi, and proboscis pale-tawny ; arista dark, pubescent. 

 Dorsum of the thorax and scutellum golden-yellow, the sides 

 reddish-brown, with a grey band ; lower surface grey. Abdo- 

 men dark-brown, the apex paler. Legs pale-tawny, the apices 

 of the middle and hind femora, as well as of the hind tibiae, 

 dark-brown. Wings orange, unspotted, the subcostal cell 

 brown; veins tawny; posterior cross-vein straight. Length, 

 9^ mm. ; winsj, 9 mm. 



Hab. Wellington (G. V. Hudson). 



The second joint of the antennas is short, about one-third 

 of the length of the third joint, which is oval. The costa has 

 strong rather distant bristles from the middle of the costal cell 

 nearly to the tip of the wing. There are no vibrissas. The 

 chief cross-vein lies just inside the end of the first longi- 

 tudinal ; the distance between the two cross-veins is about 

 two and a half times the length of the posterior cross-vein, 

 which is situated at about its own length from the margin of 

 the wing. The middle tibiae are spurred, but not the hind 

 tibiae. 



Genus Limnia, R. Desvoidy (1830). 



Front projecting. Antennae as long as the head ; second 

 joint broad, compressed, equal in length to the third. Pos- 

 terior femora not elongated or thickened ; middle tibiae ter- 

 minated by two long spines. 



In the New Zealand species put into this genus the eyes 

 are prominent, the face is slightly excavated, and the third 

 joint of the antennae is oval. 



Key to the Species. 



Wings not ocellated ; posterior oross - vein strongly 

 sinuated. 



Wings with nine or ten spots . . . . . . L. sigma. 



Wings with numerous spots . . . . L. tranquilla. 



Wings ocellated; posterior cross - vein mcde.ately 

 sinuated. 



Tibiae not darker at the tips . . . . .. L. transmarina. 



Tibiae darker at the tips . . . . . . L. obscura. 



Limnia sigma. 



Tetanocera sigma, Walker, Cat. Dipt, in Brit. Mus., p. 1084 

 (1849). Cylindra sigma, Hutton, Cat. Dipt. N.Z., p. 65. 



Vertex and antennas bright-tawny, the lower face white. 

 Thorax brownish-grey above, with four brown bands ; the sides 

 reddish-brown, with a white band ; under-surface white. Ab- 

 domen reddish-brown, darker in the female than in the male. 

 Legs ferruginous. Wings slightly yellow ; costa piceous, 



