;98 Dactylopiince. 



structure may be observed in early adult individuals, where also they are seen 

 to be very crowded {fig. 12). Owing to expansion of the integument the pores 

 become more widely separate during subsequent growth. Immediately behind 

 each of the posterior spiracles is a clearly defined shallow oval pit containing 

 numerous minute thick-rimmed circular pores. 



The early adult female is of a pinkish ochreous colour, with the terminal 

 segment only dark brown. It is surrounded by a mass of white cottony secre- 

 tion {fig. 5). The crumpled exuvia; of the nymphal and larval stages may be 

 seen at the posterior extremity of the insect, entangled in the secretionary 

 matter. 



Dimensions of fully matured female: Large flat form, length, 5 to 6 mm. ; 

 breadth 3 to 3*50 mm. (an example from Southern India measures 6 50 by 

 4"2 5 mm.). Smaller convex form, length 2 '2 5 to 4 mm. ; breadth 2 to 3 mm. 



Female nymph similar m form to early adult female, but differing in the dermal 

 characters, there being (in addition to the small trilocular pores) an irregular 

 submarginal series of comparatively large and conspicuous circular thick- 

 rimmed pores (see fig. 15). Only two joints can be distinguished in the 

 nymphal antennas, and the free terminal joint is more globose than in the adult 

 insect. 



Young larva {fig. 7) pale pink or purplish pink, very slightly powdered with 

 whitish secretion. Rather elongate in form. Antenna six-jointed, the ter- 

 minal segment longest. Margin of abdomen {fig. 8) with a series of strong 

 setae, each seta associated with a large and conspicuous trilocular pore. Length 

 06 mm. 



Male unknown in any stage. The species is ovoviviparous and is probably 

 reproduced asexually. 



On the ' Giant Bamboos ' {Dendrocalainus giganiea and Gigantochloa 

 aspera\ Peradeniya ; and on the ' Male Bamboo ' {Dendrocalainus stric/a), 

 Colombo. On the ' Giant Bamboos,' the insects are congregated around the 

 nodes of the main stems ; on the smaller ' Male Bamboo,' they occur at the 

 nodes of the branches. 



Found also in Southern India and in the Sandwich Islands. 

 In allocating this species to the genus Antonina, I am aware that I am going 

 against the opinion of the late Mr. W. M. Maskell, who placed it in a special 

 family — Idiococcince—yN\i\z\i he erected to contain his peculiar genera Cylindro- 

 coccus and Sphcvrococcus. In his very last paper on Coccidae, published shortly 

 before his death, after erecting a new genus — Chcetococcus — to contain his pre- 

 viously described Sphcerococciis bainbuscF, he comments upon a letter in which 

 I had drawn his attention to the affinities of the species, and remarks that 

 ' there is no resemblance between A. purpurea and C. banibusce except 

 externally and superficially.' Personally, I can see very little external or 

 superficial resemblance between the two species ; but I maintain that, in al^ 

 essential details of structure, they are congeneric. The validity of Maskell's 

 judgment in this case is discounted by the fact that he immediately proceeds 

 to describe, as a new species, Chcetococcus graminis., an insect that is now 

 recognised as a typical Antonina. This reference to Chceiococeus gra?ntfiis, by 

 the way, is omitted in Mrs. Fernald's comprehensive Catalogue of the Coccidce 

 of the World. 



