Aleyrodidae of New Caledonia — Dumbleton 
129 
absent. Abdominal tracheal fold present, with- 
out dots, abdominal tracheal pore similar to 
thoracic pore. Yasiform orifice (Fig. llg) cor- 
date, 0.05 mm. long, 0.05 mm. wide. Eighth 
abdominal setae minute, at half the length of 
orifice. Operculum 0.04 mm. long, 0.04 mm. 
wide, subcordate, completely filling orifice. 
Lingula 0.025 mm. long, 0.012 wide, finger- 
like, slightly constricted before base, apex 
rounded, completely included. 
HOLOTYPE: Pupal case on slide mount. De- 
posited in Institut Francais d’Oceanie, Noumea, 
New Caledonia. 
PARATYPES: In author’s collection. 
TYPE LOCALITY: New Caledonia, Riviere des 
Pirogues, coll. L.J.D., 31/7/54. 
FOOD PLANT: Maxwellia sp. 
The species is unusual in that it occupies 
pits on the dorsal surface of the leaves; the 
ventral surface of the leaves bears dense brown 
tomentum. 
GENUS Leucopogonella nov. 
PUPAL CASE: Margin entire or teeth only 
faintly indicated. A submarginal linear row of 
pores or papillae, giving the effect of an inner 
row of teeth. Submargin not separated from 
dorsal disc except in pale species. The row of 
pores is broken by 9 processes on each side, 
producing either 2 minute teeth on the margin 
or a marginal concavity between these points. 
Thoracic tracheal folds, pores, and combs ab- 
sent. Without rhachis. Without contiguous pores 
on first abdominal segment. Vasiform orifice 
small subcordate. Eighth abdominal setae slightly 
anterior to orifice. Caudal setae close together, 
bases not as wide apart as width of orifice. 
TYPE SPECIES: L. sinuata sp. n. 
This genus perhaps comes nearest Aleuro - 
trachelus but differs in the absence of an inner 
row of marginal teeth and in the absence of 
the nearly contiguous paramedian processes on 
the 1st abdominal segment. 
KEY TO THE NEW CALEDONIAN SPECIES 
( based on pupal cases ) 
1. Pale species . pallida sp. n. 
Black species 2 
2. Without abdominal tracheal comb, margin 
not sinuate apectenata sp. n. 
Abdominal tracheal comb present, margin 
sinuate 3 
3. Wide abdominal ridge, no dark-bordered 
pores laterad on dorsal disc, caudal setae 
near margin sinuata sp. n. 
Narrow abdominal ridge, 2 dark-bordered 
pores laterad on abdomen and on thorax, 
caudal setae nearer apex of orifice than 
to margin simila sp. n. 
Leucopogonella apectenata sp. n. 
Fig. Ylct^d 
PUPAL CASE (Fig. 12 a-d) : Length 0.68 mm., 
width 0.41 mm. Colour black. Shape elliptical, 
not constricted across thoracic folds or invag- 
inated caudally. Pupal case sunk in raised vi- 
treous wax over which lie 8 ribbons of white 
£2 , d 
FIG. 12. Leucopogonella apectenata sp. n. a, Pupal 
case; h, wax fringe; c, pupal case, margin; d, pupal 
case, vasiform orifice and caudal margin. (Scale in 
mm.) 
