204 ON THE SUB-FAMILY BRACHYSCELIN^^, 



Brachyscelis Thokntoxi, Froefft. 



In my description of this species in a previous paper"*^ I have 

 confounded two very distinct species, a collection of fresh material 

 which I collected last 3^ear at Wallsend having convinced 

 me of my mistake. The former description will stand for the 

 female gall in an immature state (also figured in the plate), but 

 that of the male gall mass as there described must be withdrawn. 



The male gall mass of this species is very variable in shape and 

 size, often much curved and distorted, covered with warty 

 excrescences and the edges broken and irregular, but the coccid 

 tubes always coalesce and are not sejoarated or distinct by them- 

 selves. 



It is one of the most prolific species; I have seen some trees 

 about Wallsend which are simply one mass of these galls; the 

 more mature galls become more oval and lose the very pronounced 

 ribs so conspicuous in the very young ones. 



Brachyscelis ros.eformis, n.sp. 



(Plate XIX., fig. 3.) 



9. Gall 9 lines in length, not more than 1| lines in diameter at 

 the base, gradually swelling out to three lines at the apex; brown 

 to pale red; rather wrinkled on the surface; walls of the cham- 

 ber thin, the chamber tubular, extending from the base to the 

 tip; apical orifice small, circular, apex of gall truncate; sometimes 

 the gall stands straight out from the leaf, but more frequently 

 hangs downward along it. 



(J. Gall forming a wrinkled irregular mass, growing from the 

 side of the female gall close to the tip, swelling out into a rugose 

 reddish brown mass, with the upper surface slightly concave, 

 IJ inches across at the widest diameter and about a quarter 



* P.L.S. N.S. W. (2 Ser.) Vol. vii., p. 371-72, 1892. 



