ALEURODICUS COCOIS. 
49 
which destroys the European Aleyrodes, and it is remarkable that no parasitic 
insect should have appeared to check the increase of the Cocoa-nut species, 
but this may arise from the disease having been imported without its usual 
attendant antidote. Fumigating with sulphur would arrest the plague, if it 
could be applied; but then it ought to be done simultaneously to be effective, 
or else at a season when the insects are inactive. — Ruricola. 
(Figs. 7, 8, 9.) 
The egg (fig. 41, a) [fig. 8, a]. — We know the egg only from specimens taken 
from the bodies of gravid females. Length, 0.29 mm. ; greatest width, 0.11 mm. ; 
length of pedicel, 0.0G4 mm. From these measurements it will be seen that the 
Fig. 7. — Aleurodicus cocois: a, Adult female; b, side view of abdomen; c, dorsal view of 
abdomen ; (I, antenna ; e, head from side ; /, costa of forewing ; g, costa of hind wing ; 
Ji, tarsus; i, pulvillus ; fc, adult male; I, claspers. (From Riley and Howard.) 
egg is broader in proportion to its length than that of Aleyrodes citri. The 
pedicel, instead of arising from the base of the egg, has its origin on the side, 
somewhat above the base, as shown at fig. 41, a. No sculpturing is observable. 
Newly-hatched larva, first stage (fig. 41, o) [fig. 8, &]. — What we assume 
from its size to be the first stage has been sparingly found in a more or less 
dried up condition upon the leaves of guava received. It is 0.41 mm. long and 
0.19 mm. wide, regularly elliptical, flattened and smooth. Twelve hairs of med- 
ium length protrude from each side. Antennse short, apparently five-jointed, 
joints subequal. Rostrum one-jointed, arising from a point half way between 
the middle of the body and the anterior extremity. The dorsal anal pore is 
distinct, and the long conical organ protrudes. 
Larva, intermediate stage (fig. 41, d, g) [fig. 8, d, g], — A stage intermediate 
between the newly hatched larva and that which seems full grown has been 
