10 Transactions. — Zoology. 



more or less slightly greyish-tinged, closely hut irregularly in - orated with 

 blackish ; a suffused curved blackish spot extending from inner margin near 

 base to base of costa ; an irregular oblique blackish patch in disc at -J- from 

 base, extending suffusedly to costa, and suffusedly connected beneath with a 

 small blackish spot on inner margin at \, its posterior edge bordered by a 

 pale oblique outwardly curved line from \ of costa to before middle of inner 

 margin, shortly dentate at \ from costa, posteriority margined by a blackish 

 line, forming a small spot on costa and a rather larger one on inner margin; 

 a small oblique transverse clear white spot in disc beyond middle, surrounded 

 by a blackish suffusion, forming a black spot below middle, and a black spot 

 on costa at -| ; an indistinct obscurely-dentate pale line, margined on each 

 side indistinctly with blackish, from costa at -f to inner margin before anal 

 angle, somewhat angulated inwards below costa, thence gently curved, 

 anterior black line forming two small confluent black spots towards inner 

 margin, posterior line forming a blackish wedge-shaped spot on costa : cilia 

 ochreous-white, with a regularly-interrupted blackish-grey line towards 

 base, and another towards extremities, costal cilia white, with a blackish- 

 grey spot above last transverse line. Hindwings grey, rather darker 

 posteriorily, with a faintly indicated pale line a little before hindmargin ; 

 cilia ochreous-grey- whitish, with two light grey lines. 



Female. — 9£- Hi mm. Forewings very narrow, oblong ; hindwings 

 proportionately shorter, rounded ; markings as in male, but cramped and 

 obscured. 



Superficially the male of this species rather suggests a small dark Thin, 

 leucophthalma, especially by the similarity of the white discal spot, but the 

 black basal markings of the latter species afford a ready distinction. 



I found this species plentifully, sitting on the face of the bare volcanic 

 rock which projects in many places from the soil of the hills near Christ- 

 church ; it was reluctant to take wing, perhaps owing to the prevalence of 

 high winds. The female, when disturbed, ran with considerable activity, 

 but was quite incapable of flying. 



Larva moderately stout, cylindrical, wrinkled, very sluggish ; rather 

 dark greyish-fuscous on back, much lighter on sides; spots minute, blackish, 

 obscure ; head fuscous. Feeds beneath a light shelter of silk on lichen-dust 

 on rocks, living in a crevice, and issuing forth beneath its shelter to feed. I 

 found the imago in fresh condition in March, and at the same time I 

 discovered the larva in all stages, so that there is probably a succession of 

 broods. 



4. DlPTYCHOPHORA, Z. 



Antennae of male very finely ciliated. Labial palpi rather short, some- 

 what triangular. Forewings with hindmargin twice indented on upper half; 



