Tiu.LvARD.—Studies of New Zealand Trichoptera. 295 
Lean tenuicaudatum n. sp. (Plate 19, fig. 6; text-figs. 9а, 
10 b.) 
* Total length, 6 mm. ; forewing, 10-5 mm. ; expanse, 22 mm 
thorar, and abdomen blackish - brown ; eyes dull gun ckish ; 
ла about as long as forewing, brown, annulated with darker brown 
on every segment. Legs entirely pale testaceous. 
Wings. pores blackish-fuscous, with few very short upstanding 
yellowish-brown hairs; pterostigma not very distinct; termen with very 
distinct row of golden-brown spots and very short fringe of brownish hairs ; 
a suggestion of parallel row of spots from end of stigma down to behind 
tornus, but due only to small groups of golden-brown hairs. Hindwing 
subhyaline, iridescent, with dark-brown veins and short fringe of brown 
hairs. 
TzxT-ric. 10.— Lateral views of ре «е5 тии іп ~ Leer 
T: «icit ид in, We ets b, tenui- 
sp. pens the oporbe pro ад the uh. oT 
above, the yk nder pre-anals, ме the lo em алову. (1 
t. KOH Supe. ^n (x 40.) 
. Differs from female in being of somewhat smaller size and with some- 
vi narrower wings, the forewings very dark, almost black. Appendages 
as shown in text-figs. 9 a, 100; gonapophyses forming an elongated slender 
forceps, which is diagnostic of the species in the dried specimen. Only 
sternite 8 with a projecting spine. 
