neio or little-known Tipulidte. 523 



question tliat future studies must answer. The other speeies 

 belonging to this new group are H. (Z.)fulvu (Ilutton) and 

 //. iZ.) otayana, sp. n. The speeies described by the writt-r 

 as Macroinastix maori is eertainly not a member of tliis 

 group, and likewise does not seem to be a true Macromast'hc. 

 The presence of a spur on M in exactly the same position as 

 found in the three species ot Zc/andotijjula may indicate that 

 both of these grouj)s have descended from some Maorian 

 ancestor in remote ages past. The discovery of tlie immatuie 

 stages of H. novarce by Mr. Gourlay is of unusual interest. 

 The larvie resemble those of Ilolortisia in genera! appearance, 

 but the pupje strikingly suggest species of Prionocera. 



Holorusia {Zelandotipulu) utagana, sp. n. 



General coloration light grey : centre of vertex and 

 median stripe of preescutum obscure rufous ; wings rela- 

 tively long and narrow, the pattern but faintly indicated ; 

 abdomen uniformly light brown ; male hypopygium with 

 the outer pleural appendage not produced into a conspicuous 

 attenuate point. 



Male. — Length 18-19 mm.; wing 19-32 mm.; wing- 

 \\ iilth 3'8 mm. 



Ft male. — Length about 20 mm. ; wing 17 mm. 

 Frontal prolongation of the head elongate, reddish brown ; 

 palpi dark brown. Antennje with the scapal segments 

 ijrownish yellow; fiagellum black. Dorsum of head deep 

 lufous, with a capillary dark brown median line; inner 

 margin of eyes broadly cinereous. 



Mesouotal prajscutum light grey with three stripes, the 

 median stripe obscure rufous, the lateral stripes varying 

 from rufous to dark grey ; scutum light grey, the centres of 

 the lobes dark grey; seutellum and postnotum light grey 

 with a capillary brown median line. Pleura light grey ; 

 dorso-pleural membrane ol)scure yellow. Halteres pale 

 brown. Legs with the coxre light grey ; trochanters brownish 

 yellow; femora and tibiae light brown, the tips darkened; 

 tarsi dark brown. Wings relatively long and narrow, sub- 

 hyaline, with a subobsolete pattern, cells C, Sc, 2nd li^, R^, 

 and i?3 being suffused with pale brown ; outer ends of the 

 posterior and anal cells faintly darkened ; the subhyaline 

 ground-colour includes cell R-^ to the apex; no conspicuous 

 dark pattern along Rs or 3/ as in novarce. Venation : as 

 in novara;, but the cells longer and narrower, resulting from 

 the narrowing of the wing. 



34* 



