34 Transactions. — Zoology. 



known, but appear to feed mostly on dead wood, bark, and seeds ; the habits 

 of none of the New Zealand species are known, and it is of considerable 

 importance to discover them. The imagos generally frequent bush. 



Nineteen species are here described, which may be thus tabulated : — 

 la. Forewings strongly dilated posteriorly. 



2a. Forewings grey or whitish-ochreous .. .. .. .. 42. griseata. 



2b. „ reddish-ochreous-brown . . . . . . . . 43. phegophylla. 



lb. Forewings not noticeably dilated. 

 2a. Forewings narrow. 



3a. With sharply denned fasciae. 



4a. Head dark fuscous 53. chrysogramma 



4b. „ yellow . . . . . . . . . . . . . . 52. hoplodesma. 



3b. With fasciae obscure or obsolete . . . . . . . . 51. siderodeta. 



2b. Forewings moderate. 



3a. Forewings yellow or whitish-ochreous. 



4a. Head suffused with dark fuscous . . . . . . . . 48. ancema. 



4b. ,, yellow or whitish-ochreous. 



5a. Thorax wholly yellow . . . . . . . . . . 44. oporcsa. 



5b. ,, partially dark fuscous. 



6a. Forewings with a dark anterior fascia . . . . 38. chloritis. 



6b. ,, without anterior fascia. 



7a. Anterior half of thorax wholly dark fuscous. 



8a. Forewings ochreous . . . . . . . . 45. liorcea. 



8b. ,, pale yellow .. .. .. 49. macarella. 



7b. Anterior half of thorax not wholly dark fuscous. 



8a. Forewings yellow . . . . . . . . 46. armigerella. 



8b. ,, pale whitish-ochreous . . . . 47. apanthes. 



3b. Forewings brownish-ochreous . . . . . . . . . . B5.psetidospretella. 



3c. Forewings whitish or grey. 



4a. Without definite markings 50. homodoxa. 



4b. With distinct darker markings. 



5a. Forewings coarsely irrorated with reddish fuscous . . 36. scholcea. 

 5b. ,, without reddish fuscous scales. 



6a. Costa with cloudy darker spots. 



7a. Head ochreous-white . . . . . . . . 40. contextella. 



7b. ,, more or less grey. 



8a. Discal dots well defined .. .. .. 37. letharga. 



8b. ,, obscure or obsolete . . . . 39. epimylia. 



6b. Costa not spotted . . . . . . . . . . 41. hemimochla. 



35. (Ec. pseudospretella, Stt. 



Media, alis ant. ochreis, saturate fusco conspersis, maculis disci tribus 

 parvis serieque postica subcostali ac marginis postici saturate fuscis ; post. 

 dilute griseis. 



Male, female. — 17-21 mm. Head, palpi, and thorax light brownish- 

 ochreous, strongly suffused with dark fuscous. Forewings elongate, costa 

 gently arched, apex rounded, hindmargin very obliquely rounded ; light 



