[536]

Coccidae of Ceylon, pt. 1, 1896, p. 16.

[537]

C. R. Ac. Sci. Paris, civ. 1887, p. 449.

[538]

Arch. Naturgesch. li. i. 1885, p. 169.

[539]

Zeitschr. wiss. Zool. xliii. 1886, p. 156.

[540]

For summary as to our present knowledge of this curious condition of Insect life, see Mayet, Ann. Soc. ent. France, 1896, p. 419.