16 Transactions. — Zoology. 



Sub-genus Diatomineuea, Rondani. 

 First posterior cell open ; eyes hairy. 



Pangonia lerda. 



P. lerda, Walker, Insecta Saundersiana, Dipt., i., p. 16 (1850) ; 

 Hutton, Cat. Dipt. N.Z., p. 21; White (A. G. Butler), 

 Cistula Entomologica, vol. i., p. 355 (1876). Diatomineura 

 lerda, Kicardo, Ann. Mag. Nat. Hist., ser. 7, vol. 5, p. 119 

 (1900). 



" Palpi and antennas yellowish-brown, the latter blackish 

 at the end. Face and front with greyish down ; thorax above 

 black ; a line of deep-brown hairs on each side ; a tuft of 

 yellowish bairs on each side, near the base of the wings; 

 scutellum black ; abdomen above ferruginous-brown, black in 

 the middle, the terminal segments with yellowish hairs on the 

 margins ; under-side of the thorax with longish yellow hairs 

 in front and on the sides, in the middle greyish ; abdomen 

 beneath ferruginous, almost without hairs : legs ferruginous, 

 without hairs ; no tooth on the third joint of the antennae " 

 (A. White). 



No length is given, but according to Mr. Walker it is 



14^ mm. 



"Hah. New Zealand. 



I have seen no specimen which 1 can confidently refer to 

 P. lerda, therefore I have reproduced White's original de- 

 scription, which was published by Mr. Butler. 



Pangonia hirticeps. 



P. hirticeps, Nowicki, Mem. Krakauer Akad. W T issen., 1875, 



p. 17; Hutton, Cat. Dipt. N.Z., p. 22. 



The head is white above, with pale-tawny or yellowish 

 hairs below, the ocellar region dark-ferruginous. Palpi and 

 antennas nearly black. Thorax blackish-brown, with tawny 

 hairs ; a band of black hairs on each side, below which and 

 on the posterior angles are long pale-yellowish hairs. The 

 abdomen is blackish-brown, the first and second segments 

 broadly margined with dull-red, and each segment has a 

 central spot of pale-yellow hairs ; the hairs on the sides of 

 the abdomen are black and pale-yellow in alternate tufts. 

 Legs brown, the fore and middle tibiae reddish ; the last joints 

 of the tarsi fuscous. Length, 11 mm. ; wing, 16 mm. 



Hab. Auckland (Captain Broun). 



Pangonia ricardoi, sp. nov. 

 Comptosia bicolor, Hudson, Man. N.Z. Ent., p. 54, pi. iv., 



fig. 2, not of Macquart. 



Male. Face pale-yellowish; first joint of the antennae 



grey with black hairs, the rest pitch-brown ; palpi brown ; 



