294 
HYBL/EA PUERA, var. NIGRA, MS. 
THE BLACK HYBL&aA. 
Plate XIX, fig. 1, 2, 6, ¢. 
Reference :—Provisionally named as A. fuera, var. nigra, MS. 
Tree attacked :—Tectona grandis (Teak). 
Description. 
Larva.—Head large, hard, shining, black; prothorax black, 
duller than head, also hard and chitinous ; each witha few black 
hairs scattered overthem. Rest of segments a soft velvety 
black with a few scattered white hairs taking off from small 
tubercles situated on the body. Last segment small, chitinous, 
dull black with large black anal claspers. The short transverse 
white streak present on the dorsal surface of the 11th segment of 
the true 17. puera larve is present here. Ventral surface in full 
grown specin ens orange, the thoracic and pro-legs being of the 
same colour. A black irregular wavy line runs down just above 
the pro-legs on either side from segments 4 to 11 inclusive, 
Thorax on ventral surface black as alse is 12th segment. 
Stigmata white, small, elliptical, placed just above junction of 
the black and orange colour. A few scattered hairs on the 
under-surface. The body is thickish in middle, tapering to 
either end. In younger specimens the body beneath is almost a 
greenish white, a narrow white line separating the black from 
the under-surface colouring. Length 14 to 12 inches, PI, XIX, 
fig. 1, a, shows a dorsal and side view of this larva. 
Pupa.—The larva spins a loose white silk pupal covering 
before changing to the pupa, . 
The pupa is at first a bright canary yellow or yellow green 
anteriorly, the head and thoracic portion being considerably 
thickened and enlarged. Dorsally 4 body segments can be seen 
below the thorax, the last tapering to a point. Ventrally nine 
segments can be counted. These are a pale yellowish brown 
in colour, the constrictions between the segments being pale 
yellow. The whole pupa subsequently darkens, becoming 
