Watt. — Leaf-mining Insects of Nexv Zealand. 441 



as far as the second segment. Abdominal segments of about equal length, 

 except for the terminal three ; dorsum thickly covered with very fine spines ; 

 movement can take place between 4-5, 5-6, 6-7 ; spiracles small, circidar, 

 slightly elevated, covered by the wings in the first abdominal segment, 

 obsolete in the eighth, absent in the ninth and tenth. Cremaster absent, 

 the terminal segment being bluntly rounded or produced into two finger- 

 like processes, each bearing a minute apical hook. Setae present, slender ; 

 a dorsal pair on meso- and meta-thorax and abdominal segments except 

 the last ; a dorso-lateral pair and a lateral pair on most of the abdominal 

 segments, details of which are given under the difierent species. 



The pupa is extruded from the cocoon as far as about the first legs, and 

 always with its dorsal surface next the surface of the leaf on or in which 

 the cocoon is constructed. The appendages are therefore outermost. As 

 soon as the imago has become freed it retreats to the underside of the leaf, 

 where it shelters quietly while the wings expand and dry. 



Meyrick (" Kevision of the New Zealand Tineina," Trans. N .Z. Inst., 

 vol. 47, 1915, p. 227) gives the chief characteristics of the Gracilariadae as: 

 " Head with appressed scales. Antennae 1 or over 1. Labial palpi slender, 

 ascending, tolerably pointed. Maxillary palpi moderate, filiform, por- 

 rected. Fore wings with 7 and 8 stalked or separate. Hind wings lanceolate 

 or linear." And he then divides the three genera as follows : — 



Middle tibiae not thickened — 



{a.) Posterior tibiae with bristly projecting scales above : Acrocercops. 

 (&.) Posterior tibae without bristly scales : Paredopa. 



Middle tibiae thickened with dense scales ; posterior tibiae without bristly 

 scales : Gracilaria. 



Hence the absence of the thickening of scales on the middle and 

 posterior tibiae is the distinguishing characteristic of Parectopa. 



(1.) Parectopa citharoda Meyr. (The Wattle ParectQpa). (Plate XXX, fig. 1.) 



Paredopa citharoda Meyr., Trans. N .Z. Inst., vol. 48, 1916, p. 418 ; 

 W^att, loc. cit., pp. 407-13. 



For th^ sake of completeness I recapitulate below the chief points 

 from my earlier paper on this species, together with a little new material 

 that I have noted since publishing the paper referred to. 



Meyrick' s Original Description. 



" $. 10 mm. Head probably white (injured). Palpi white. Thorax 

 white, patagia dark fuscous. Abdomen dark grey, sides obliquely striped 

 with white, ventral surface white. Forewings very narrow, moderately 

 pointed ; dark bronzy-fuscous, towards apex lighter and more bronzy ; 

 five .slender white blackish-edged streaks from costa, first three very oblique, 

 first from J, reaching half across wing, second from middle, reaching more 

 than half across wing, its apex closely followed by a short fine dash, third 

 shorter, fourth fine, direct, reaching termen, dilated on costa, fifth just 

 before apex, fine, inwardly oblique, cutting through a small round blackish 

 spot ; a white dorsal streak from base to middle, terminated by an oblique 

 projecting streak reaching nearly half across wing ; a white triangular 

 spot on dorsum beneath apex of second costal streak ; a short outwardly- 

 oblique white streak from tornus : cilia greyish, with white bars on costal 

 markings, and dark-fuscous median and apical lines above apex separated 

 with whitish. Hind wings dark slaty-grey : cilia fuscous." 



