306 Transactio7is. — Zoology. 



of C. thecB are a good deal longer that those originally de-^ 

 scribed from India. I cannot, therefore, now lay stress on any 

 difference on this point. 



As regards the " spinneret groups," the slight variations 

 noticeable are not of specific importance. The numbers of 

 orifices in these groups frequently vary considerably, even in 

 specimens undoubtedly of the same species and taken from 

 the same plant. Therefore nothing can be founded on 

 this. 



I find the marginal hairs varying slightly. In aspidistrcB, 

 (type) there are on each side five or six, of which three are in 

 an anterior group. In var. mussc&nclcB I see ten on each side, 

 with five in the anterior group. In brasiliensis there are 

 three or four on each side, two in the anterior group. In 

 thecB, the same as in brasiliensis. I am, of course, here 

 speaking only of the hairs on the pygidial segment ; all the 

 forms have also hairs on the anterior abdominal segments. 



The terminal lobes also vary. Asijidistroi and brasiliensis 

 have two small median trifoliate lobes and two other smaller 

 subcylindrical ones at each side; thece, has a small median 

 depression ; musscendce, has the two median lobes propor- 

 tionately larger than those of the tj^pe. 



Brasiliensis and thecz have less prominent segments than 

 the other two, and, indeed, in the type aspidistrce. the pro- 

 minence is quite conspicuous and peculiar. 



Size and colour I do not consider as really important 

 points ; but, in fact, there is not much difference as regards 

 these in all the four. 



On the whole, whilst I am still not prepared to entirely 

 overlook the differences just noted, I have no objection to 

 consider them as variations, and to classify the species as 

 follows : — 



G. aspidistra}, Signoret, 1868. 



„ var. brasiliensis, Signoret, 1868. 



„ var. thecB, Maskell, 1891. 



„ var. miisscBudce, Green, 1896. 



Chionaspis eugenise, Maskell. 



This species seems to be widely distributed. The original 

 specimens were Australian. I have had it since from China, 

 Japan, and the Sandwich Islands, on many plants ; and Mr. 

 Green has two varieties of it in Ceylon. 



Genus Poliaspis. 

 Poliaspis exocarpi, Maskell. 



Mr. Lea has sent me specimens of this species on Lepto- 

 spermum, sp., from Albany^ Western Australia. 



