24:4 Transactions. — Zoology. 



terior wings hyaline, the veins reddish, the dorsal margin 

 near the base with black hairs. Inferior appendages in the 

 male large, curved upwards, the apices bent downwards ; in 

 the female they are acute. (Brazier.) 



Locality. — Auckland and Christchurch. 



Family HYDROPSYCHID^. 



Maxillary palpi 5-jointed in both sexes, long, more or less 

 dellexed, the last joint whip-shaped, and composed of numer- 

 ous minute jointlets, slightly pubescent. Wings pubescent. 

 Antennae variable. Larvae without any prominent hump on 

 the first abdominal segment, external respiratory filaments 

 present or absent, when present usually fasciculate. Cases 

 fixed to stones. Sometimes several larvas live in company 

 under a common covering. The pupa not enveloped in a 

 special cocoon. 



Genus Hydeopsyche, Pictet (1834). 



Antennae very slender, the basal joint short and bulbose, 

 the others after the second elongate, each slightly thickened 

 within. Maxillary palpi with the second joint long, the third 

 and fourth shorter, almost triangular, the fifth as long as the 

 others united. Anterior wings narrow and elongate, obliquely 

 truncated at the apex ; anal lobe scarcely indicated ; discoidal 

 cell closed. Posterior wings much shorter, broader, folded, 

 obtuse, usually with a long closed median cell. 



Distribution. — Cosmopolitan. 



Hydropsyche fimlbriata. 



Hydropsyche fimbriata, McLachlan, Trans. Ent. Soc. London, 

 1862, p. 9. 



Antennae pale-ochreous, annulated with dark-brown ; eyes 

 varied with brown and black. Head and thorax reddish- 

 brown. Abdomen blackish above. Legs ochreous. Anterior 

 wings tawny-ochreous, much darker towards the apex, with 

 numerous small pale spots ; several of these are larger towards 

 the base ; on the inner margin elongate pale spots alternate 

 with the dark ground-colour ; fringe of the apical margin con- 

 spicuously yellowish-white. Posterior wings clothed with 

 clay-coloured hairs. Inferior anal appendages in the male 

 with very long terminal joints, which are pomted and curved 

 upwards, approximating at the tips. Penis pale, with a cal- 

 losity before the apex beneath; apex dark-red, tumid. Length 

 of the body, 8 mm. ; expanse of the wings, 22 mm. 



Locality. — Auckland. 



This insect has a deceptive resemblance to CEconesus 

 maori. 



