10 DIPTERA 



bands arc most narrow in the middle, and tliey are white on the 

 under-side. Legs purplish-brown; thighs dull pale yellow, with brown 

 tips. Wings colourless, veins pale brown ; poisers pale brown, with 

 brown knobs. 



Length, 2 lines. 



New Zealand (Dr. Sinclair). 



C. ACER. Walker, I.e., p. 8 (1848) . 



Female. Body dull pale yellow ; proboscis dull yellow ; thorax 

 with three pale-brown stripes. Legs pale yellow, shaded with darker 

 colour at intervals. Wings colourless, veins dull yellow. 



Length, 2 lines. 



C. ALBiRosTRis. Macquavt, Dipteres Exotiques, Sup. 4, p. 10 (1850). 



Female. Proboscis white, at the base and at the extremity black. 

 Palpi black, a little white at the extremity. Face white ; front 

 black, with thin brownish down. Antennae blackish, the first joints 

 pale. Thorax with a reddish-grey down. Abdomen deep black, the 

 posterior margins of the segments white. Legs pale yellowish, a little 

 blackish at the extremities of the thighs ; tibiae brownish ; the pos- 

 terior pair a little whitish in the middle ; tarsi blackish, a white ring 

 at the base of each joint. Wings with the veins normal. 



Length, 2 lines. 



Akaroa. 



Family — Mxcetophilid^. 



Proboscis short. Antennae long. Head without a muzzle, generally 

 with two or three ocelli. Legs long, the thighs terminated by tivo 

 spines. Larvae living in fungi. 



Genus-RHYPHUS. 

 Latreille. 



Second joint of the palpi thick. Antennae subulate, sixteen- 

 jointed, the two first distinct from the others, the remainder almost 

 globular, diminishing in size. Abdomen of seven distinct segments. 

 Legs long in the male. Two basal cells in the wings, a discoidal, and 

 five posterior cells. 



R. NEozEALANDicus. ScMner , Reise der Novara, Dipt. II., p. 49 (1868). 

 Thorax brownish- black, lighter in the female than in the male, 

 with indistinct stripes ; the protuberances before the scutellum, and 

 the hinder part of the back, rust-red, which enlarges on the side of 

 the belly, elsewhere reddish-brown ; in the female light brown. Head 



