^jpheirierida of Nev) Zealand. £89 



Deleatidium Lillii, sp. nov. (Plate X, figs. 4a, 4Z>, 

 details). 



Subimago (in fluid). — Wings uniformly light grey with, opaque 

 neuration. Setae grey ; their joinings towards their tips evenly 

 defined. 



Imago (dried). — ^ body pitch-brown, the thorax polished above. 

 Femora and fore tibiaj raw umber brown ; fore tarsus and hinder 

 tibice lighter in tint ; hinder tarsi somewhat of a sepia-grey through- 

 out. Wings vitreous with pitch-black neuration, except in the 

 fore-wing the finer cross veinlets of the marginal and submarginal 

 areas that precede the pterostigmatic region (which are deficient in 

 colouring), and the roots of the stronger nervures interior to the 

 humeral cross-vein, which are raw umber brown ; the membrane at 

 the extreme roots is almost imperceptibly tinted raw umber or 

 greenish. In the marginal area of the fore-wiug, before the bulla, 

 are usually about 6 faint cross -veinlets, and beyond that 2 — 4 faint 

 and 8 — 11 stronger veinlets, all simple. Setae light sepia -grey with 

 blackish joinings, of which some in the basal quarter are alternately 

 distinct and faint. In the abdomen, segments 3 — 6 are sometimes 

 transparent and whitish to a variable extent at the base. 



? very like the ^, but the colouring at the fore- wing roots, 

 interior to the humeral cross-vein, is rather darker in tint. The 

 marginal area of the fore-wing contains about 3 — 5 faint cross-veinlets 

 before the bulla, and two faint and thirteen stronger beyond that, 

 all simple. Ventral lobe of the ninth abdominal segment slightly 

 (not deeply) emarginate, with acute points. 



Length of body 8 — 9, wing 12 ; set« $ im. 51 mm. 



Hob. DuNEDiN (Lillie); Wellington (Hudson, No. 46). 



Mr. Lillie's consignment comprised nymph and both 



sexes in subimago and imago ; Mr. Hudson's 3 ^ & 1 $ im. 



It is remarkable that up to the present time all New 

 Zealand representatives of the 3rd Group of Sections of 

 the Family belong exclusively to genera of the Sectional 

 Type of Siphlurus. Three genera, Colohcriscus, Ameletus, 

 Oniscigaster, furnish between them six species to the 

 fauna. 



COLOBURISCUS. 



Hind tibia distinctly longer than the tarsus; basal joint 

 in the hind tarsus vaguely marked off from the tibia, 

 except at the sole (where spinules at the apex of the tibia 



