200 Transactions. 



The Ovum. — (1) Where situated, whether any particular portion of the 

 leaf or stem is favoured more than any other part ; (2) size, colour, and 

 sculpture. 



The Larva. — (1) General colour of body during early stages and when 

 full-grown ; (2) the colour and shape of the head ; (3) markings on the 

 prothorax, visibility of cephalic ganglia and prothoracic shield ; (4) colour 

 and appearance of ventral nerve-chain ; (5) colour of intestinal canal ; 

 (6) dorsal marks on last three abdominal segments ; (7) saetal plan. 



The Mine. — (1) The food-plant ; (2) situation on stem or leaf, whether 

 in upper or lower surface ; (3) in what particular part of the leaf ; (4) its 

 course — straight, tortuous, or vermiform ; (5) whether a simple gallery, 

 blotch, or combination of both ; (6) discoloration of surrounding leaf- 

 substance ; (7) the deposition of the frass — granular, lumpy or fluid, fine 

 or coarse, colour, copious or scanty, how deposited in the mine. 



The Cocoon. — (1) Situation, whether within the. mine or without; 

 (2) size, shape, and colour. 



The Pupa. — (1) The relative lengths of the thoracic appendages ; (2) the 

 arrangement of the dorsal abdominal spines ; (3) the relative lengths of 

 the coxae : (4) relative size. 



(9.) Nepticula ogygia Meyr. (The Olearia Gallery-Nepticulid). 



Nepticula ogygia Meyr., Trans. N.Z. hist., vol. 21, p. 187. 1889 ; 

 vol. 47, p. 231, 1915. 



The Imago. 



Meyrick's Original Description. — "cJ. 7 mm. Head and palpi pale 

 whitish-ochreous. Antennae grey. Thorax and abdomen grey, sprinkled 

 with ochreous -whitish. Legs dark grey, apex of joints whitish. Forewings 

 lanceolate ; pale grey, coarsely irrorated with black ; an obscure cloudy 

 ochreous -whitish suffusion towards costa at § ; an obscurely-indicated pale 

 spot in disc before middle : cilia whitish-ochreous-grey, with an obscure line 

 of dark scales round apex. Hindwings and cilia light grey." 



The above description was taken from a single specimen, most possibly 

 caught in the field. During the last few seasons I have been fortunate 

 in rearing a good series of this rather rare little moth. There is a slight 

 degree of variation in some of the specimens, principally in the amount 

 of dark irroration in the forewing, which in some specimens is quite 

 scanty, and the moth appears to the naked eye as light grey instead of black. 

 The following description is taken from freshly emerged specimens : — 



Head and palpi pale yellowish-ochreous. collar and basal joint of 

 antenna whitish. Antennae pale grey, under 1, about \. Thorax grey, 

 densely irrorated with black. Legs and abdomen light grey. Forewings 

 pale grey, thickly irrorated with black scales ; a small pale area on dorsum 

 near tornus (this appears to be the most constant marking, and is quite 

 conspicuous when the wings are folded at rest, when the two areas form a 

 small saddle-shaped spot on the dorsum) ; in the female there is a second 

 similar area on costa, and frequently the two may form an obscure light 

 band across the wing ; a very diffuse pale spot in disc at J, frequently 

 absent ; a series of four small black spots in middle of wing, one at J, 

 |, \, and the fourth less distinct near termen ; these spots are definitely 

 fixed as to position, but one or more or all may be absent, that at | being 

 the most constant : cilia pale grey with bluish reflections, a distinct black 

 cilial line. Hindwings dark grey; cilia dark grey. 



