GYMNOCOCCUS AGAVIUM. 207 



masses, small white cocoon-like sacs, each either empty 

 or containing a dead pupa of the male, or in a few 

 only a dead male imago ; and although there were 

 many of these sacs, not one had a living male in it, 

 nor were there any living males free." 



GENUS ANTONINA (Signoret). 



Adult female apodous ; anal lobes rudimentary ; 

 antennae atrophied or rudimentary ; anal orifice with 

 six hairs. 



Ovisac felted or solid and wax-like. 



Larva with the anal lobes well developed ; antennae 

 of six joints ; anal orifice with six hairs. 



This is a small genus of five or six species, represented 

 in Europe, Asia, America, and New Zealand.* 



ANTONINA SOCIALIS 

 (PL XXXVI, figs. 1-4; PL XXXVII, fig. 1.) 



Antonina socialis, Newstead; Ent. Mo. Mag., s.s., 

 vol. xii, p. 85, figs. 10-12 (1901). 



Ovisac of female usually complete, and wholly or 

 partly hidden beneath the leaf -sheaths of the food- 

 plant (PL XXXVI, fig. 1) ; white, elongate-ovate, flat, 

 and closely felted, but brittle. 



Long, 58 mm. 



Adult female (PL XXXVI, fig. 2) viviparous, elon- 



* Under date 27th August, 1897, the late Mr. Maskell wrote to me as 

 follows : " Antonina purpurea, Sign. Green writes that my Sphserococcus 

 bambusae is that species ; he judges from specimens sent to him some time 

 ago by Sulc. This is a real surprise to me, for Antonina is Acanthococcid ! 

 I have one specimen of A. purpurea sent by Signoret many years ago ; it is 

 not a bit like bambuste ; but it is not a good specimen." I record this note 

 in order that it may not be lost. I cannot say what Mr. Green has decided 

 with regard to the New Zealand insect, but have little doubt that he was 

 correct in his identification of the species. 



