182 Transactions. — Zoology. 



points of difference consist in the position ( whether above or 

 below the furcations) of the transverse bars, or their partial 

 obsolescence. Pal. chalcophaues is especially interesting, as 

 being at present the only Lepidopteron known which shows the 

 basal trifurcation of vein la of the forewings, common to all the 

 above-mentioned genera of Trichoptera ; and the same species 

 possesses the second (basal) branch of vein 12 of the forewings, 

 which is shown in Rhyacophila, but not in any of the others 

 mentioned, except Hydropsycke, which does not, however, show 

 the other or median branch. 1 may add that this basal branch 

 is perhaps rather to be regarded as a transverse bar connecting 

 vein 12 with the costa, than as a true branch. It appears to me 

 that the type of neuration of the Trichoptera consists of five 

 simple veins, variously fused, towards the inner margin ; and 

 seven apically furcate veins, variously fused towards the base, 

 and connected by a series of trausverse bars. 



27. Pal. chalcophams, n. sp. 



Male, female. — lO-^-ll mm. Head, palpi, and thorax 

 ochreous. Antenna? pale ochreous, with about six very variable 

 blackish bands. Abdomen grey. Legs pale ochreous, sharply 

 banded with dark grey. Forewings oblong, costa abruptly bent 

 near base, thence gently arched, apex acute, bindmargin straight, 

 very oblique ; light shining yellowish-ochreous, with hardly 

 traceable somewhat darker coppery-shining oblique reticulating 

 fascia?, terminating in small dark purple-fuscous spots on mar- 

 gins ; these spits are on costa hear base, at \, §, f, and apex, 

 on inner margin near base, at fa, f. and anal angle, and on 

 middle of bindmargin ; third costal spot often double ; cilia 

 shining whitish-oehreous, on costal spots dark fuscous. Hind- 

 wiugs rather dark purple-grey ; cilia grey. 



Makatoku (Hawke's Bay), in March ; nine specimens amongst 

 deep forest. 



28. Pal. chtysargyra, n. sp. 



Male, female. — 9-KH mm. Head and thorax reddish- 

 ochreous. Palpi light ochreous. Antenna? dark grey. Abdomen 

 grey. Legs light ochrtous. Forewings ovate-lanceolate, costa 

 abruptly bent near base, thence moderately arched, apex acute, 

 bindmargin very oblique, slightly sinuate ; shining golden- 

 ochreous ; markings very indistinct, shining ochreous-whitish ; 

 a very irregular fascia before middle, a second at f , both often 

 interrupted, and a series of several small spots along bindmargin 

 and apical portion of costa ; a dark fuscous dot in disc before 

 middle, sometimes obsolete : cilia pale shining golden-ochreous. 

 Hindwings purplish-grey ; cilia whitish-grey. 



Lake Wakatipu (1,100 feet), m December ; taken commonly 

 flying over flowery herbage by the side of a small rivulet. 



