15 



The eggs hatch in about fifteen days. The larva when hatched 

 is naked but is soon covered by a white waxy secretion which 

 becomes heavier as the insect increases in size. The larva is 

 about one-ninetieth of an inch in length and is characterized 

 by the possession of six-jointed antennae. The larva molts 

 after 20 days, giving place to the adult, which is characterized 

 by seven-jointed antennae. Immediately after the molt the 

 insect is quite small; growth is very gradual and it takes sev- 

 eral months for it to attain its full size and form the egg-sac. 

 The male has not been observed. 



The following technical description is inserted to facilitate 

 the determination of the species by entomologists : 



• 



Fig- 8. — Pseudococctis Hlamentosus fCkll.) Adult female; antenna; leg:; larva. 

 CCopied from Maskell.) 



"Female insect covered by globular sacs of whitish or yellow cot- 

 ton, which are frequently aggregated in large masses on the twigs. 

 Diameter of sac about one-eighth inch. Sac of male pupa not observed. 

 Adult female dark red or purple, slightly elliptical or subglobular. 

 Length about one-twelfth inch. Segments inconspicuous. Antennae 

 of seven joints, of which the seventh is the longest and largest and 

 the fifth the smallest. The rest subequal, all the joints bearing a few 

 hairs, which are most numerous at the extreme tip. Feet moderately 

 strong. Tibia about one-third longer than the tarsus. There is not 



