278 E. T. Atkinson — On the Homopterous Family Coccidae. [No. 3, 



6. To these add a genus created by Maskell for species in whicli 

 the adult 2 has a shield formed partly of the pellicle of the second 

 moult and partly of a firm, apparently chitinous secretion : apodous in 

 the adult stage : — Lecanochiton, Mask. [Trans. New Zeal. Inst, xiv, p. 

 221, 1882]. 



Subdivision Signoretiaria. 



Signoret, A. S. E. F. (5 ser.) i, p. 422 (1871). 



This group includes species inclosed in a kind of sac or envelope 

 formed by the female at the time of laying her eggs and intended for 

 their protection : this sac varies much in character being in some a 

 mere cottony mass, and in others firm and felted : feet and antennsa 

 present, sometimes atrophied. 



1. Species inclosed in a rather thick or felted case formed of a 

 white substance : antennae 8- jointed in the adult, C-jointed in the 

 larval $ : — Signoretia, Targ. [Sign., 1. c. 426]. 



2. Species enclosed in a complete envelope or sac in which the 

 adult ? is found lying on a cottony mass, its body shrivelled and 

 pushed to one of the extremities in proportion to the number of the 

 eggs : the larval and adult ? have 6-jointed antennae, but the feet and 

 antennae become atrophied, thick and short, and the joints are scarcely 

 visible : adult S with 10-jointed antennae : six eyes, two in front of 

 the vertex, two a little beneath and two in place of the rostrum : — 

 Erio;peltis, Sign. [1. c. 429]. 



3. Species inclosed in a sac of a white felted substance : anal ring 

 round in front and behind and Av^ith eight hairs on the recurved extre- 

 m.ity : antennas of ? with six joints in the larval, pupal, and adult states. 

 Fhilippia, Targ. [1. c. 433]. 



Subdivision Ceeoplastaria. 



Sign. A. S. B. F. (5 ser.) i, p. 423 0871). 



This division includes those species which are covered by a layer 

 more or less thick of a waxy substance that forms in some a covering 

 resembling the carapace of a tortoise and in others one resembling a 

 star-fish. It includes the genera Vinsonia and Ceroplastes, the former 

 of which combines the tortoise- shaped disc of the dorsum with star-fish 

 limbs, whilst the latter is without arms. From Signoret's remarks 

 [1. c. iv, p. 98, 1874] we should place here the genus Fairmairia, Sign., 

 to contain species having a scaly covering of a mother-of-pearl con- 

 sistence in the form of a tent or of two leaves leaning against each 

 other J composed of a circular-rayed secretion that increases in con- 



