478 Transactions. 
and minute spines in intersegmental regions. Posterior — Г 
tubercles very prominent, can be seen in dorsal profile. Ventral ] 
slightly prominent. Antero-lateral shoulder well pronounced as far bac 
as transverse suture. Dehiscence as in other species already described. 
Average measurements: Len ngth, 2-4mm.; greatest ventro- dorsal 
diameter, 1-1 mm. ; greatest transverse diameter, 3 
Average length of pupal existence, three weeks in normal conditioi 3 
: н Agromyza citreifemorata n. sp. (The Ngaio-fly). 
The Imago. 
Male. Braue, palpi, and genae lemon-yellow ; antennae orange, à 
pubescent, black ; ocellar triangle and occiput black; eyes dark blac 
brown; each orbit with four bristles; ocellar and post- -vertical ыш 
about equal length. 
Th 
"Abdominal a black, with very narrow yellow posterior margins 
ventro-lateral areas yellow, under-surface black. 
Legs lemon-yellow ; tibiae brownish medial з : 
Wings (fig. 26) clear, veins brown, yellow at their bases; ; fringe 
calyptrae fuscous. Halteres yellow. Last section of fifth vein twice 
imei as oe section and four times as long as penultimate sec 
ou 
Length 3 mm. Female similar to male, with exception of being 
arger, 
“Type i in the author’s collection ; reared from mines obtained in 8t. | 
Hill Reserve, Wan nganui. à 
Distribution. 
irst discovered in St. John’s Hill Reserve, Wanganui, 21st Jun 
and has been found i | every year since. E. een Gardens and UR 
mmon 
distributed, by no means common except in restricted localities. 
appear in September, November, and Janu uary. 
/ Food-plant. 
Myoporum laetum. (ngaio). 
: lon ais 2 
posteriorly ; mandibular sclerite 23 only two teeth in all three 
е of pharyngeal skeleton, exclusive of mandibular sclerite—™ 
0-13 mm. ; second instar, 0-24 mm.; third:instar, 0-35 mm. 1° 
mandibular sclerite—first instar, 0-035 mm.; second instar, V 
third instar, 0-09 mm. First moult occurs at a point about 1 em. 
start of mine, second usually within blotch. 
