298 Transactions. — Zoology. 



lum black, with a few long hairs on the posterior margin. 

 Abdomen black, narrow in front but broadening considerably 

 posteriorly, hairs few and scattered. Forceps of male light- 

 yellow. Halteres with a light-yellow pedicel ; club large, 

 pyriform, black. Legs not long ; coxae yellow, darkening to- 

 wards the apex, where there are a few light-coloured setae ; 

 trochanters light-yellow ; femora rather compressed, yellow, 

 but dark-brown or black at the apex, covered all over with 

 black hairs, which are lengthened considertibly near the 

 end of the lateral margins ; tarsi straw-coloured, with two 

 ranges of long black spines ; posterior spurs half the length 

 of metatarsus, straw-coloured, but densely covered with short 

 black hairs ; tarsi with spines on the inner surface. Wings 

 with a pale -yellow tinge; veins dark -brown, but lighter 

 where they cross the white areas ; costal margin of wing 

 brown, the shading extending downwards at the marginal 

 cross-vein ; all the apical half of the wing shaded with brovvn, 

 which is darker near the costal margin ; a roundish white 

 patch half in the second and half in the first submargmal 

 cell. Tips of costal and second longitudinal veins uniting 

 before the apex of the wing ; fourth longitudinal strong ; fifth 

 longitudinal parallel to the third, ending about half-way down 

 it ; sixth longitudinal strong. 



Common at Wanganui and Lincoln early in the spring. 



Zygomyia fiisca, sp. nov. 



Length of antennse, 0-049; size of body, 0-115 x 0-033; 

 expanse of wing, 0-125 x 004:9. 



Joints of scapus rather long, light-yellow, cyathiform, the 

 first half as long again as the second ; joints of flagellum 

 rather compressed, dark-brown, those at the base about as 

 long as broad, the apical ones with the length more than four 

 times the breadth, thickly clothed with a pubescence giving 

 silvery reflections. Palpi yellow. The central ocellus small, 

 situated in rather a deep depression. Thorax dark-brown, 

 bordered with orange anteriorly, and covered with black 

 hairs. Scutellum dark-brown, with long hairs on the posterior 

 margin. Metathorax and pleurae dark-brown on upper por- 

 tion, but black below. Halteres white ; club oval, with a few 

 black hairs. Abdomen black, with very few hairs except on 

 the posterior margins of the segments ; a cinereous band on 

 the hind margin of every segment. Forceps of male dark- 

 brown, and densely covered with black hairs. Legs moderate ; 

 coxae almost white, but a small patch of brown and black 

 hairs at the tip ; trochanters dark ; femora light straw-colour, 

 with short black hairs which become setae on the margins 

 near the apex, rather dark at the base, compressed ; tibiae 

 stout and, like the tarsi, closely resemble those of Z. flavicoxa. 



