298 L ecaniod. 2aSpis. 
LECANIODIASPIS AZADIRACHTA,, sf. nov. 
(PLATE CXII.) 
Test of adult female (figs. 1, 2) broadly oval; slightly convex above and 
below. Surface minutely pitted. An interrupted median longitudinal carina ; 
and about ten transversely radiating carinze on each side, with slightly raised 
bosses at two points; the raised parts of both longitudinal and transverse 
carinee rendered more conspicuous by a thin covering of whitish waxy secretion. 
Short carinze above the stigmatic areas. A short cleft at posterior extremity, 
expanding into a narrow anal aperture. Margin densely tomentose. Ventral 
area of test very thin, adherent to the bark of the plant. Colour, brownish 
ochreous. Length 325 mm. Breadth 2°25 mm. 
Living insect, after oviposition (fig. 3), ochreous yellow. Anterior margin 
infolded on each side of the cephalic area. Sides flattened and broadly rounded. 
Abdominal area contracted and concealed beneath the overlapping thoracic and 
lateral areas. Antenne eight-jointed (7g. 4). Limbs (jigs. 9, 10) distinctly 
two-jointed, comparatively large; the distal joint soft and colourless. Stig- 
matic spines (fig. 5) somewhat clubbed, two at anterior and one at posterior 
stigmatic areas ; each with a slight groove on distal half. Anal segment (fg. 6) 
with a broad bilobed chitinous plate below anal aperture, its sides with denser 
folds: the pre-anal plate with a deep semicircular emargination behind. Anal 
ring with ten stout flattened hairs. Close to the apex of each lobe of the 
postanal plate is a stout seta springing from a small tubercle. A few stout- 
pointed spines outside the base of each seta. A few whip-like hairs, and some 
inconspicuous circular pores, near extremity of venter. Dorsum with numerous 
stout conical sharply pointed spines (fg. 11), more crowded on the marginal 
area. Cribriform plates (jig. 7) small, with well-defined circular pits. Diameter 
approximately 1°5 mm. 
Male unknown in any stage. 
On young branch of Azadirachta indica (‘margosa’). Jaffna. The bark 
beneath the insect is sunk, forming a shallow cavity in which the insect rests 
(fig. 1). The surrounding parts are somewhat swollen. 
Described from a single example. The species is well characterised by the 
stout conical spines on the dorsum. 
