271 



3.3. Legs absent. (Body subglobular, with a three-pointed 

 horny appendage dorsally.) Ascelis, Schrader. 



1.1. Galls not formed ; females covered by thick, waxy tests. 

 (Thoracic part of body very bulky, abdominal short, narrow, 

 truncate, antenna:* and legs absent.) Carteria, Maskell. 



Although the present paper is primarily concerned with the 

 genus Brachyscelis, I have illustrated a species of leaf-gall 

 (pi. iii., tig. 4) which by its external form belongs to Opisthoscelisy 

 but the inhabiting insect — so far as I have been able to study it 

 in some soaked and re-softened specimens — differs considerably 

 from the females of that genus, and approaches AsceJis by the 

 entire absence of legs. Hence I feel considerable diffidence in 

 locating it with either, and place it only provisionally in the 

 latter for the present, having some other species to notice in a 

 future paper. 



In the following list I have ati:emj>ted tentatively to classify 

 the galls of the genus Brachyscelis in regard to form and the 

 position normally assumed by the insect during life, but the 

 latter only applies more relia1)ly to the species observed by 

 myself, that of the others being inferred from the published 

 figures, which may not have been drawn with strict regard of 

 the position of the galls in situ, but rather to tlie available space. 

 The authors rarely mention it in their remai'ks. In the present 

 illustrations, which I have drawn from specimens gathered by 

 myself chieHy, the direction of the branchlet indicates a more or 

 less vertical one, whatever its position on the plate. (The figures 

 of the galls of the Elder Exploring Expedition will be given on 

 another plate with those of some others, yet undescribed in the 

 collection at a future paper.) 



LIST OF KNOWN GALLS OF BRACHYSCELIS. 



A. Galls regular. (All longitudinal sections through the axis 

 produce similar halves.) 

 a. Galls more or less erect. 



Brachyscelis munita, Schrader. On Uuc. rohusta (Frogg.), 

 N.S.W., Victoria, Queensland; on Euc. 

 leucoxylon, g7'acilis (Te^Dper), S.A. 

 regular is, sp. n. On Euc. rostrata, S.A. 

 subconica, sp. n. On Eac. 2incinafa, S.A. 

 urnalis, sp. no v. On Euc. gracilis (var. ?\ 



S.A. 

 calycina, sp. n. On Euc. oleosa (? ), duinosa, 



S.A. 

 Neumanni, sp. n. On Euc. dumosa, S. A. 

 Beyeriff^, sp. n. On Jjeyeria opaca, S.A. 



