Warr.—Leaf-mining Insects of New Zealand. 477 
Wings (fig. 25) pale-greyish, veins darker grey; ultimate section of 
` fourth vein eight and a half times as long as penultimate section, the latter 
one-fifth as long as ultimate section of the fifth; penultimate section of 
fifth two-thirds as long as ultimate. Halteres very pale lemon-yellow. 
Length, 2 mm. ; length of wing, 2 mm. | 
Type in author’s collection; reared from mines obtained in Botanical 
Gardens, Dunedin. 
| Distribution. 
Has only been found in the Botanical Gardens, Dunedin. Larvae starting 
mining in early November started to pupate beginning of December, 
imagines emerging about 22nd December. 
Food-plant. 
Apparently confined to Veronica monticola. 
Egg-laying- and Larva. 
Egg laid in a small pocket under lower cuticle of leaf, almost invariably 
within 1 mm. of extreme tip and about half-way between midrib and outer 
margin. 
ee larva, length 3mm.; yellow in anterior half, dark green 
posteriorly, shiny. Larvae have been found mining in February, March, 
and November. 
The Mine. (Plate 40, fig. 4.) 
ar en over 
terminal part while fresh, very dark towards middle owing to frass. 
“ Herring-boning " not very marked. Fresh mines appear somewhat 
à semi-fluid condition on both floor and roof of mine. In the narrow 
gallery at start it occupies two thin more or less interrupted lines, one 
on either side of mine, close to margin; this double formation is practi- 
cally lost in later wider gallery. Never more than one mine fouud in a 
leaf. When full-grown, larva makes escape through upper or lower cuticle 
indiseriminately. : 
The Pupa. (Figs. 19, 20.) q 
Pupation normally occurs on or in ground, but not more than iin 
below к. Colour of pupa pale to dark brown. Dorsum rounded ; 
ventral surface almost flat ; anterior end directed more ventrad than dorsad, 
bluntly pointed in lateral profile. 
ditor respiratory кос. short, slender, knobbed, almost "m 
apart as posterior pair, which are stouter with black expanded ends. Seg 
ments well rounded, shiny, covered with fine annular striae; very fine 
