68 JOURNAL, BOMBAY NATURAL HISTORY SOCIETY, Vol. XIII, 
Habitat.—On leaves of Rhododendron arboreum, Nuwara Eliya. The 
male scales forming conspicuous spots on the dark green smooth upper 
surface of the leaf. Female scales situated in the angles formed by the 
midrib and lateral veins: often completely concealed beneath the tomentose 
hairs of the leaf. 
The variety rhododendri differs from tipical thee principally in the nature of 
the puparium, which, in the present form, is stouter, flatter, and of a deeper 
colour, Also in its habitat, thee occurring on the stems and twigs of the 
plant, while rhododendri is found only on the leaves. It differs from 
trilobitiformis in the much stouter and darker puparium : in the form 
of the adult female, (being broader and less pointed posteriorly) : and in 
the proportionate size of the lobes, In érilobitiformis the lateral lobes 
are not much smaller than the median pair: while, in both typical thee 
and var. rhododendri, the median lobes are very broad and the lateral lobes 
very rarrow. In all three forms there are normally 8 distinct lobes 
(3 lateral lobes on each side of the median pair ). In Prof. Cockerell’s 
drawing of trilobitiformis (“San Jose Scale and its nearest Allies,’ U.. 8. 
Depart. of Agric., Div. of Entom., Tech, Series, No. 6, p. 11) the outer 
lateral lobes are omitted. These particular lobes are rather fragile, and in 
many examples are more or less broken, 
ASPIDIOTUS DICTYOSPERMI, Morg., var, ARECH, Newst. (PI. A, fig. 4.) 
Asp. dictyospermi, Morg., ““ Ent, Mo. Mag.” Aug, 1889, p. 352. 
Diasp. pinnulifera, Mask., ‘ Tran, N. Z. Instit.,”” 1890, p. 4. 
Asp, dictyospermi, var, arece, Newst., “ Ent. Mo, Mag.,” Aug. 1893, p. 185. 
Female puparium pale reddish-brown or orange-brown : circular : almost 
flat : exuviee subcentral, first pellicle with a circumscribed raised median 
area bearing a central boss and raised ring which, in fresh specimens, are 
covered with white waxy matter : ventral scale represented only by a thin 
film which remains attached to the plant, Length 1 to 1°87mm. 
Adult female pale yellow: of normal form: spiracles without parastig- 
matic glands, Pygidium rather pointed; with six lobes, median pair largest, 
second and third pairs decreasing in size, all of same form, apex rounded, 
inner edge longest, outer edge with a small notch ( fig. 4). Squames small, 
with irregularly fimbriate extremities. Immediately beyond the outer lobes 
are two (sometimes three ) marginal prominences, each bearing a cons- 
picuous narrow lancedlate process serrated on:its outer edge, besides a long 
spine-like point : a third marginal prominence usually bears two long serrated 
points, There are ten club-shaped incrassations, one from the inner edge of 
each lobe, one from the outeredge of the median lobes, and one half-way 
between the second and third lobes. Conspicuous oval pores on the dorsal 
surface, in definite linear series, two series on each side. Circumgenital 
glands in four groups, with few orifices ; upper laterals usually 4, and lower 
laterals 2 only. Length about 1 mm, 
