CRYPTOCOCCUS. 215 



lous five-jointed antennae, and the number of spines 

 on the anal orifice (fig. 10). 



CRYPTOCOCCUS FAGI (Barensprung). 

 (PL A, fig. 2, Vol. I ; PL LXX, figs. 1-10.) 



Coccus fagi, Barensprung; Zeitung fur Zoologie, 



Zootomie, mid Palaozoologie, d' Alton and 



Burmeister, vol. i, p. 174 (1849). 

 Coccus fagi, Walker ; List of Homop., pt. iv, p. 1086 



(1852). 



Pulvinaria ? ' fagi (Hardy), Signoret; Essai, p. 212. 

 Coccus* fagi (Walker), Signoret; 1. c., p. 453. 

 Pseudococcus fagi (Barensp.), Douglas; Ent. Mo. 



Mag., vol. xxiii, p. 152 (1886). 

 Cryptococcus fagi (Barensp.), Douglas; Ent. Mo. 



Mag., s.s., vol. i, p. 155 (1890). 



Adult female (figs. 1, la, 1 b, 6c) hemispherical, highly 

 convex above and comparatively flat beneath, with the 

 anal extremity slightly curved ventrally (fig. 1 b) ; seg- 

 mentation faintly indicated. Colour lemon-yellow ; 

 rudimentary antennae and legs, spiracles, and rostrum 

 reddish-brown. Body completely covered with a 

 dense white secretion. Rudimentary antennas (figs. 2, 

 2 a) composed of three more or less irregular joints ; 

 second joint generally with two short stout spines, and 

 there is sometimes a shorter one on the first joint. 

 First and second pairs of legs obsolete ; third pair 

 (figs. 3, 3 a) represented by a pair of minute tuberculate 

 projections. Spiracles (fig. 5) large, broadest at base, 

 where they are most highly chitinised ; the rest of the 

 integument thin and folded on one side, somewhat 

 like the folds of a camera, with the outline curved 

 towards the opening ; within the latter is an arrow- 

 shaped piece of chitin : many examples, however, do 



* Hypothetically referred to Pseudococcus. 



