46 Transactions. — Zoology. 



tennae black, 16-jointed; <? with 3 to 13 branched, $ with 

 4 to 11 serrated. Rostrum short. Thorax with a small 

 obscm'B spot on each side, and four blackish stripes on the 

 dorsum. Wings limpid, with fuscous spots; a short oblique 

 fascia from the tip of the first longitudinal to the base of the 

 discal cell ; a row of four to six spots in the posterior basal 

 cell. Legs reddish ; femora with a pale ring before the 

 apex. Length, <? 10 mm., 2 16 mm. Expanse of the wings, 

 (J 20 mm., 5 22 mm. (Abbreviated from Westwood.) 



In two specimens in Mr. Hudson's collection the brown 

 bands are quite as well marked as in G. subfasciata, but the 

 legs are paler, and the femora are only subfuscous at the tip, 

 so that the pale band is not so distinct. In the female the 

 posterior basal cell has no spots, although they are present 

 in the male. The antennae of the male are 18-jointed, with 

 3 to 15 bi'anched, and the branches are much longer than 

 in subfasciata, and much longer than in Westwood's figure. 

 Length, 3- 14 mm., $ 17 mm., wing, ^ 12 mm., ? 13 mm. 



Hab. New Zealand (D. Wakefield); Wellington (Hudson). 



I doubt much whether this species can be kept distinct 

 from G. subfasciata ; evidently the antennae and the markings 

 of the wings are variable, and we have only size and colour 

 of the legs to trust to. 



Gynoplistia cuprea. 



Gynoplistia cuprea, Hudson, MSS. Plate IV., fig. 18. 



Metallic copper-yellow, with purple reflections. Antennae 

 dark-brown, in the male 20-jointed, the third to the sixteenth 

 branched. A large patch on each side of the thorax with 

 pale-yellowish hairs. Hal teres yellow. Femora pale yellow- 

 ish-brown. Wings ochraceous, darker in the female, with 

 brown spots at the origins of the second and third longitudinal 

 veins. Tips of the wings brown. Length, J 11-1 H mm., 

 $ 16 mm.; wing, <? 11-12 mm., $ 15 mm. 



Hab. Wellington (Hudson), Canterbury (F.W.H.). 



Gynoplistia formosa, sp. nov. 

 Abdomen metallic steel-blue, with purple reflections. Head 

 and antennae dark-brown. Thorax dark-bronze. Legs dark- 

 brown, the femora (except the tips) and a distal ring on the 

 hind tibiae yellow. Halteres yellow. Wings faintly tinged 

 with yellow ; a large dark spot at the origin of the second 

 longitudinal vein, and a still larger one from the cosca through 

 the bases of the second subniarginal and first posterior cells 

 to the discal, which is clear, except the inner and outer mar- 

 gins. A lighter spot in the upper margin of the axillary cell, 

 about two-thirds from the base, and touching the sixth longi- 

 tudinal vein. The antennae in the male are 22-jointed, of 



