Tittyarp.—Studies of New Zealand Trichoptera. 313 
abitat. — South Island: Canterbury and Nelson Provi 
ae occurs commonly around Nelson, but I have taken iml males 
o far. 
‘Text-Fic. 26.— теч albescens n. sp., ppendages ( x 84). 
d ; 6, lateral view. Note the bildad gonapophysis 
in b. (10 p per cent. KOH preparation 
Helicopsyche howesi n. sp. (Plate 19, fig. 20; text-fig. 27.) 
d. Total length, 3-5 mm. ; forewing, 5-5 mm. ; expanse, 11-5 mm. 
Head, thorax, and abdomen dull brownish-testaceous ; antennae tes- 
taceous, with basal iu gp Ya fuscous ; epicranium with long fuscous 
hairs. Legs very pale testac 
Wings pale-greyish, with slightly- -indicated paler whitish patches on 
forewing at one-third from base, near costa, and at two-thirds from base, 
below pterostigma, also a little before pterostigma and distally between 
M and Cu,. Hairs and fringe pr with slight tinge of brown. 
ae of dried insect as shown in text-fig. 27; the process of tenth 
te as broad at apex as at base, the im strongly truncated ; pre-anals 
short, subtriangular, angulated externally not far from bases ; gonapophyses 
much larger, appearing strongly forcipated when viewed from above. 
"Техт-ғто. 27.— Helicopsyche howesi n. sp., 4. Appendages (x 84), . 
dorsal жон, for comparison with text-fig. 26. Drawn from uc 
dried in 
9. Unknown. 
male, unique, Dunedin (1st January, 1920) ; in Caw- 
thron Institute collection. The larvae were plentiful in the streams, and 
their cases are larger and composed of coarser sand-grains than those of 
the other two species. Mr. W. G. Howes has, I believe, succeeded in 
rearing this species several times. 
