SCIENCE BULLETIN, No. 19. 



Genus XLVIII. Sphaerococopsis^ Cockerel. 



Proi'. Acad, of Nat. Sciences, Philadelphia, p. 262, 1899. 

 Canadian Entomologist, vol. xxxi, p. 277, 1899. 



This genus was created to give generic rank to a remarkable coccid des- 

 cribed bv Maskell under the name of Sphaerococcus infiati pes, which has three 

 pair of well-defined legs in the adult female. He defines it : " Adult female 

 with all the legs present ; the first four small, hind pair very large, margins 

 with spines; anal ring without hairs." 



Sphaerococopsis injiatipes, Maskell (Fig. 1). 



Sphaerococcus inflatipes. Trans. N. Zealand Institute, vol. xxv, p. 238, pi. xvii, figs. 1-5, 



1892. 

 Sphaerococopsis inflatipes, Cockerell, Pro. Acad. Nat. Sci. Phil, p. 262, 1899. 



The type specimens came from Myrniong, Victoria, upon an undetermined 

 species of eucalypt ; on the stems of the peppermint gum {Eucalyptus novae- 

 angliae), Uralla, and E. hotryoides, Kurnell, New South Wales. 



Fig. i.— Sphaerococopsis inflatipes. 



The adult female produces a central pit beneath the surface of the bark of 

 the trunk, or main branches, round which rises a ring of swollen tissues, 

 which forms a circular blister with a depression at the apex, in the centre of 

 which is the apical orifice. Under the opening, resting upon the centre of 

 the back of the enclosed coccid, is a convex semi-transparent membrane, 

 like a conical cap (probably the last larval moult). Diameter of blister gall, 

 about one-eighth of an inch. 



