156 
PACIFIC SCIENCE, Vol. XI, April, 1957 
general terms. Slide missing. 
pupal case: (Fig. 19). Length 0.87 mm., 
width 0.80 mm. Colour light brown in central 
disc and halfway to margins. Shape sub- 
circular, flat. Margin obscurely and irreg- 
ularly dentate, about 20 teeth in 0.10 mm. 
Thoracic and abdominal tracheal folds, pores 
and combs absent. Anterior and posterior 
marginal setae present. Fourteen minute sub- 
marginal setae on each half just mesad of 
margin. Submargin not delimited. One pair 
of minute setae on cephalic area, and on first 
and eighth abdominal segments. Caudal setae 
twice as long as marginal setae. Sutures and 
segmentation as in figure. Vasiform orifice 
(Fig. 20*) 0.062 mm. long, 0.05 mm. wide, 
subcordate, floor strongly reticulate, almost 
appearing to be toothed on posterior margin. 
Operculum 0.03 mm. long, 0.04 mm. wide, 
sub-semicircular, half filling orifice. Lingula 
little constricted, subparallel sided, rounded 
apically. 
adult: Female , antenna (Fig. 20 b)\ segment 
3, 0.18 mm.; 4, 0.045 mm.; 5, 0.05 mm.; 6, 
Fig. 20. Aleyrodes fodiens Mask. Pupal case: a, Vasi- 
form orifice. Adult female: b. Antenna; c , wings. 
Fig. 21. Aleyrodes fodiens Mask. Adult male: a , Vasi- 
form orifice, claspers, and penis; b, penis, lateral view. 
0.04 mm.; 7, 0.035 mm. Wings (Fig. 20c) 
white, unspotted, forewing 1.3 mm. long, 
stub of Ri present. Male , operculum (Fig. 
21 a) length 0.02 mm., width apically 0.02 
mm. wider basally, emarginate apically. Lin- 
gula rounded apically. Clasper (Fig. 21*) 0.15 
mm. long, apex acute, prominent almost an- 
gulate bulge bearing two setae at mid-length 
mesally, four or five setae apically. Penis (Fig. 
21 b) subparallel sided in lateral view, abruptly 
angled to base of tooth which is fairly long 
and acute. 
lectotype: Pupal case on slide mount in 
Maskell collection. 
type locality: Reefton. Collect. R. 
Raithby. 
food plant: Drimys {Winter a) axillaris. 
material: Unmounted duplicate material 
in Maskell collection. Pupal cases and adults 
from Wintera at Waiho. Collect. L.J.D. 
20 / 11 / 50 . 
