Hutton. — On New Diptera. 183 



tudinal reaches the margin not far from the tip of the third 

 longitudinal. Fork of the fifth longitudinal considerably out- 

 side the cross-vein. Length, 4 mm. ; wing, 3 mm. 



Female. — Thorax fulvous, with three rows of yellow hairs 

 and a brown patch on the pleura before the wing. Abdomen 

 and halteres pale-brown. The rest as in the male. 



Hab. Christchurch (F. W. H.) ; Auckland (Suter). 



Chironomus pavidus, sp. nov. 



Male. — Head blackish-brown; the antennae brown, and 

 with brown plumes. Thorax blackish-brown, with two longi- 

 tudinal rows of scattered tawny hairs. Abdomen dark-brown, 

 with yellowish hairs. Legs pale-tawny, the last joint of the 

 tarsi fuscous ; the coxa? brown ; the fore metatarsi about one 

 and a half times the length of the tibiae. Halteres pale- 

 yellow. Wings and veins bare ; veins almost colourless ; the 

 membrane with pale iridescent spots or patches, one in front 

 of the cross-vein, two in the first posterior cell, another in the 

 fork of the fifth longitudinal vein, and another in the second 

 posterior cell. These spots are not seen by transmitted light. 

 The third longitudinal vein meets the costa a little before the 

 tip ; it is not much curved ; submarginal cell acute at the tip. 

 Fourth longitudinal ends below the tip and inside the third. 

 Fork of the fifth a little outside the cross-vem. Length, 

 4^- mm. ; wing, 3 mm. 



Female. — Wings iridescent, but without soots. 



Hab. Christchurch (F. W. H.). 



This species differs from G. nubifer, Skuse, in the propor- 

 tions of the fore metatarsi and tibiae, and probably in colours 

 also. 



Chironomus ignavus, sp. nov. 



Male and Female. — Dark-brown, scutellum paler, abdo- 

 men with pale hairs. Legs pale-tawny, the tarsi fuscous. 

 Meso- and meta-thorax with a raised central ridge. Fore 

 metatarsus about one and a quarter times the length of the 

 tibia. Intermediate metatarsus nearly as long as the tibia. 

 Halteres pale-brown, with dark tips. Wiugs with a slight 

 tawny tinge, unspotted ; veins pale-tawny. Third longi- 

 tudinal vein much curved backward, meeting the costa near 

 the apex of the wing ; submarginal cell rounded at the tip. 

 Tip of the fourth longitudinal further from the apex of the 

 wing chan the third. Fork of the fifth longitudinal slightly 

 outside the cross-vein. Length, 4-4^- mm. ; wing, 3-3^ mm. 



Hab. Christchurch (F. W. H.). 



Genus Okthocladius, V. d. Wulp, 1874. 

 " Antennae 14-jointed in the male, 7-jointed in the female. 

 Thorax with three stripes. Wings naked. Third longi- 



