291 
He refers to R. H. Riibsaamen's paper on certain Australian Homoptera and 
Diptera, to which allusion has already been made. " Much of this is taken up by rather 
rough criticism of some observations of Mr. J. G. 0. Tepper, of Adelaide, as to which 
it may be sufficient to say that the critic would have done well to acquire some greater 
knowledge of Coccids than he appears to possess before he proceeded to vilify others." 
He then discusses Riibsaamen's proposed supersession of Brachyscdis for Apiomorpha, 
and emphatically supports the use of Brachyscdis. 
Let us now return to Schrader's paper, quoted at p. 283. Following include 
his references to Opisthoscdis and Ascdis. 
" The galls of the insects of the genus Opisthoscdis are often found, male and 
female, under the same leaf (fig. i, Plate III). The female gall is in the shape of a pea, 
but somewhat larger, the male gall very small and conical" (Schrader, op. cit., p. 7). 
I have seen undetermined galls of Opisthoscdis on E. mdliodora at Warren (J. L. 
Froggatt). On E. oleosa, No. 5 line, near Griffith (W. D. Campbell). On E. propinqua 
(?) at Raymond Terrace (E. Cheel). 
0. subrotunda Schrader, in Trans. Entomol. Soc. N.S.W., i, 7, with a figure 
(n. Plate III) of a female gall. This species is fully described by Froggatt (Proc. Linn. 
Soc. N.S.W., xviii, 211, 1893), who found the female galls very plentiful at Sutherland, 
near Sydney, on E. capitdlata. They are found on the leaves of young trees, either 
growing singly or in twos or threes. In Agric. Gaz. N.S.W., ix, 497, Froggatt gives the 
synonyms as 0. Schraderi Rubs, and 0. globosa Rubs. 
It also occurs on the large-fruited form of E. resinifera, Milton, N.S.W. (R. H. 
Cambage), and on the normal species at Sutherland (J. L. Boorman). 
0. gracilis Schrader, Trans. Entomol Soc. N.S.W. , cp. cit., p. 7. T.:e following 
species have been described by Mr. Froggatt : 
Opisthoscelis n. sp. On E. oleosa, Cobar (J. L. Boorman). 
0. fibularis Froggatt, Proc. Linn. Soc. N.S.W. xviii, figs. 17-21, Plate XVI. 
Found at Bendigo, Victoria, and Bathurst, N.S.W., on undetermined species of 
Eucalyptus. 
0. maculata Froggatt, Proc. Linn. Soc. N.S.W., xviii, 345, with figs. 22 and 23 
of Plate XVII. Plentiful in the Whipstick Scrub, Bendigo, on E. leucoxlyon and E. 
gracilis. 
0. mammularis Froggatt, Proc. Linn. Soc., N.S.W., xviii, 344, with figs. 15 and 
16 of Plate XVI. Found at Bendigo, Victoria, on an undetermined species of Eucalyptus . 
0. Maskdli Froggatt, Proc. Linn. Soc. N.S.W., xviii, 340, with figs 6-9, Plate 
XVII. Common at Flemington, near Sydney, on E. siderophloia, but also " at Maitland, 
Cooma, Newcastle, and from a dozen localities within a radius of 20 miles of Sydney." 
In Agric. Gaz. N.S.W., ix, 497, Froggatt says that this species is confined to E. 
siderophloia. 
