180 Transactions. — Zoology. 



with black bands. Wings without spots, pellucid, with pale- 

 grey hairs on the veins ; veins brownish. Halteres white. 

 Legs dark-brown, with pale-grey hairs. Length, Hmm. ; 

 wing, 2 mm. 



Hab. Christchurch (F. W. H.), common ; Auckland 

 (Suter). 



Introduced from Europe. 



Genus Pericoma, Walker, 1856. 



Wings pointed or rounded ; two simple veins between the 

 forked veins, the second of these two ending distinctly be- 

 hind the tip of the wing. Proboscis with broad liplets. 



Pericoma funebris, sp. nov. 



Head and thorax very dark- brown ; thorax nearly bare, 

 but some white hairs at the root of the wing. Abdomen 

 paler brown, covered with reddish-brown hairs. Legs brown, 

 with some white hairs near the tips of the tibiae. Wings 

 broad, rounded at the apex, densely covered with dark-brown 

 hairs, passing into reddish-brown a little below the tip. 

 No spots. The fork of the second longitudinal vein lies 

 rather inside that of the fourth longitudinal. The anterior 

 of the two simple veins reaches the margin a little before the 

 apex of the wing, while the second one is distinctly behind it. 

 Length, 3^- mm. ; wing, 4 mm. 



Hab. Wellington (G. V. Hudson). 



Pericoma variegata, sp. nov. 



Head and anterior portion of thorax velvety black, the 

 posterior portion foxy-red. Abdomen brown. Legs brown, 

 the tarsi blackish. Wings broad and rounded at the tip. 

 Dark-brown, with spots and streaks of foxy-red and some 

 white hairs sprinkled through the brown ones. Neuration as 

 in the last species. Length, 4 mm. ; wing, 5f mm. 



Hab. Wellington (G. V. Hudson). 



Family CHIRONOMID^E. 



Key to the Genera. 

 Only one basal cell. 

 Wings bare. 



Front metatarsi longer than the tibiae . . Chironomus. 



Front metatarsi shorter than the tibiae. 



Posterior branch of the fifth longitudinal 



vein straight . . . . . . Orthocladius . 



Posterior branch of the fifth longitudinal 



vein sinuous . . . . . . Camptocladias* 



Wings hairy. 



Front metatarsi longer than the tibiae . . Tanytarsus. 



Two basal cells .. .. .- •• •• Tanypus. 



