Aleyrodidae of New Caledonia— Dumbleton 
115 
4. Vasiform orifice triangular; operculum oc- 
cupies only half orifice; lingula long, 
pointed, exposed; distinct caudal furrow 
Bemisia Q. & B. 
Not as above 5 
5. Marginal teeth well developed, submar- 
ginal series of papilla-like pores absent, 
but simple pale small spots or pores may 
be present Aleurocanthus Q. & B. 
Marginal teeth absent or ill-defined, sub- 
marginal linear series of papilla-like 
pores present, broken by 9 processes on 
each side Leucopogonella n.g. 
6. Abdomen with only 7 visible segments, 
top-shaped pit-making species 
Gomenella n.g. 
Not as above ™ 7 
7. Vasiform orifice long, triangular; oper- 
culum occupies half orifice; lingula long, 
pointed, exposed Parabemisia Takahashi 
Not as above 8 
8. Thoracic tracheal comb absent 
Dialeurodes Cockerell 
Thoracic tracheal comb present 9 
9. Thoracic tracheal comb with 2 teeth, ab- 
dominal tracheal comb absent, margin 
sinuate; submargin with 10 prominent 
setae on each side; without submarginal 
papillae Dothioia n.g. 
Thoracic tracheal comb with 2 -many teeth, 
abdominal comb present, margin not 
sinuate, submargin without prominent 
setae, specialized submarginal papillae 
present Orchamoplatus Russell 
subfamily UDAMOSELINAE Enderlein 
GENUS Dialeurodicus Cockerell 
Dialeurodicus elongatus Dumbleton. Proc. R. 
Ent. Soc. Lond. (B), pts. 7-8, pp. 129— 
131, 1956. 
SUBFAMILY ALEYRODINAE Enderlein 
GENUS Aleurocanthus Quaintance & Baker 
KEY TO NEW CALEDONIAN SPECIES 
(based on pupal cases) 
1. Long spines absent 2 
Long spines present 3 
2. Shape regular ovate or elliptical, without 
short spinous processes; lateral abdom- 
inal rays present nudus sp. n. 
Shape somewhat pointed anteriorly, shal- 
lowly emarginate posteriorly, short spi- 
nous processes present, lateral abdominal 
rays absent brevispinosus sp. n. 
3. Long spines on thorax only, shape some- 
what pointed anteriorly, marginal teeth 
rounded, lateral abdominal rays present 
spinitkorax sp. n. 
Many long spines on both thorax and 
abdomen, shape broadly rounded ante- 
riorly, bluntly pointed posteriorly, mar- 
ginal teeth pointed, lateral abdominal 
rays absent multispinosus sp. n. 
Aleurocanthus brevispinosus sp. n. 
Fig. 1 a-d 
LARVA: Second instar (Fig. la ) : Length 0.39 
mm., width 0.24 mm. Colour pale. One pair 
spines anterior to and 2 pairs laterad of cepha- 
lic hairlike setae. One pair short and 1 pair 
long spines posteriorly on thorax. One pair hair- 
like setae on 1st abdominal segment, those on 
8th minute, caudal setae longer, 6 pairs of spines 
on abdomen. Margin obscurely toothed. 
Third instar (Fig. lb ) : Length 0.60 mm., 
width 0.41 mm. Sometimes pigmented brown 
medially. Two pairs of spines anterior to ce- 
phalic setae and 2 pairs caudad. One pair short 
spines on thorax. First abdominal segment with 
1 pair paramedian processes, 8th abdominal and 
caudal setae hairlike, 6 pairs spines on abdomen. 
Marginal teeth similar to those of pupal case. 
PUPAL CASE (Figs. Ic, d) : Length 0.97 mm., 
width 0.74 mm. Colour black, eye spots paler. 
Slightly pointed anteriorly, sides a little concave 
from one-quarter to one-half length, broadest at 
mid-length, caudal margin more broadly rounded 
than anterior but with slight concavity. Not con- 
stricted across thoracic tracheal folds. A white 
wax fringe of columnar elements as wide as 
teeth and up to half as long as body width. 
Margin prominently toothed; teeth longer than 
wide, rounded apically. Submargin not defined 
by submarginal line, an inner row of teeth pres- 
ent. A continuous row of minute pale spots or 
