194 Transactions. — Zoology. 



clavate, metatarsus and second joint much swollen, the other 

 joints vasiform. Neuration of the wing the same as in D. 

 nigrostigma. Length. 5 mm. ; wing, 5 mm. 



Female. — Head and antennae dark-brown, the rostrum 

 brown below. Thorax fulvous. Abdomen brown. Legs 

 fulvous, except the last three joints of the tarsi, which are 

 brown. Wings slightly tinted with yellowish, iridescent, the 

 stigma _ brown. Legs slender, the joints of the hind tarsi 

 cylindrical. Length, 5 mm. ; wing, 5 mm. 



Rob. Christchurch (F. W. H.). 



This species and the next belong to the same section as 

 D. varipes, Skuse (Pro. Linn. Soc. N.S.W., vol. v., p. 636), 

 but the colours are different. 



Dilophus segnis, sp. nov. 



Male. — Black, the femora and tibiae piceous ; eyes brown. 

 Hind legs elongated, the femora nearly black ; femur and 

 tibia clavate, the metatarsus and second joint swollen. Fore 

 femora slightly inflated ; middle femora not inflated. Halteres 

 black, with white stalks. Wings hyaline, the stigma blackish- 

 brown. Length, 5 mm. ; wing, 4 mm. 



Female. — Head and eyes black ; thorax, abdomen, and 

 legs dark-brown. Hind legs rather elongated ; the femur and 

 tibia clavate, but the metatarsus not inflated. Wings tinged 

 with brown, iridescent ; the stigma blackish-brown. Length, 

 5 mm. ; wing, 5 mm. 



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



The legs in both this species and the last are nearly 

 smooth. 



Genus Scatopse, Geoffroy, 1764. 



One basal cell ; third longitudinal vein simple ; three 

 posterior cells, the second of which is petiolated. Antennae 

 cylindrical, 11-jointed, the last four hardly distinct; palpi 

 concealed, of one distinct joint. Eyes reniform. Hind meta- 

 tarsi shorter than the remaining joints together. 



Scatopse carbonaria, sp. nov. 



Entirely black, the veins of the wing fuscous. The first 

 longitudinal vein rather more than half the length of the 

 second. The third longitudinal about two- thirds of the 

 length of the wing. The costa extends round the apex of 

 the wing to the posterior branch of the fourth longitudinal. 

 Fork of the fourth longitudinal situated inside the tip of the 

 third longitudinal. Fifth longitudinal not reaching the border 

 of the wing. The wing-fold, between the fourth and fifth 

 veins, forked. Length, 2£ mm. ; wing, 2 mm. 



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



