XXI 



particular attention to two kinds of excrescence on the leaf-stalk of the maple {Acer 

 campesire), described in the following note : — 



" Firstly. A Dipterous gall formed by a slender, club-like, reddish swelling of the 

 petiole, soinelinies in its middle, sometimes at its junction with the leaf; cell one, 

 occupying the whole length of the gall, and tenanted by the white larva of a Dipleron 

 as yet unknown to me, but which I am certain is not a Cecidomyia. In September, 

 1868, and again in the same month this year, I met with this gall on the identical 

 maple-bush in a hedge-row near Shirley, but until now all my attempts at rearing the 

 fly have utterly failed. 



" Secondly. Also on the petiole of the maple-leaf, a series of spur-like, solid red 

 excrescences, standing in a row, e.ich about half a line high. These 1 am inclined 

 to attribute to the same Acarus aceris of Kaltenbach which causes the well-known 

 pear-shaped red galls on the leaves of this tree. But whether this be so or not, it is at 

 any rate worth while to point out, that iusect agency can produce, on thornless plants, 

 excrescences closely resembling, or perhaps identical with, the natural thorns so 

 commonly met with in other groups of the vegetable kingdom." 



Mr. Miiller mentioned that the collection of galls formed by the late Mr. Wilson 

 Armistead had been placed in the Museum of the Leeds Philosophical Society. 



Mr. Cutter (who was present as a Visitor) exhibited, on behalf of Mr. Christopher 

 Ward, several Diurnal Lepidoptera, including the female of Ornithoptera Brookeana, 

 various species of Charaxes, Papilio Zalmoxis, and a specimen of Papilio Antimachus, 

 caj)tured one hundred and tifty or two hundred miles inland from Old Calabar. Of 

 this gigantic and remarkable butterfly the only example hitherto known was collected 

 by Smeathman lor Dniry a century ago, was figured by Drury and by Donovan, and 

 was finally taken with Drury's collection to Australia by William Sharp Macleay. 



Mr. Butler corrected an error in his paper (Tr. Ent. Soc. 1869, p. 273), where it is 

 stated that Ar;iynnis Aglaia and Niobe show every sign of being one and the same 

 species; for Aglaia read Adippe. And as to the occurrence of the form Niobe in 

 Britain, see Newman's ' Entomologist,' iv. 351. 



Mr. Wormald exhibited a small box of butterflies sent from Shanghai by 

 Mr. W. B. Pryer. Amongst them were Argynnis Midas, and a beautiful species of 

 Anthocharis with falcate wings, apparently identical with the Japanese A. Scolymus. 



Mr. Dunning exhibited half a dozen moihs bred and sent by Mr. E. Holdsworth, 

 of Shanghai. One was Heterusia remota (Walker, Cat. Lep. Het. B. M. p. 431), the 

 larvge of which were found by Mr. Holdsworth in great numbers at Van Vun, about 

 six miles west of Soochow : the cocoon was described as " of very white colour, and of 

 a very paper-like nature." The other specimens were the subject of the following 

 extract : — 



" The specimens of a Bombyx have been reared by myself, from larvae found 

 feeding upon pine and dwarf oak at the hills near Van Vun. The larvae when found 

 were full grown, and hundreds of them had already spun their cocoons amongst the 

 needles of the pine trees, and so plentiful were they that every tree had three or four 

 cocoons on it. The following is a description of the larva as it appeared shortly before 

 spinning its cocoon. Body. — Ground colour black or dark brown, covered with very 

 short lightish brown hairs, having a lighter shade towards the sides ; down the back 

 two lines of small tufts of hair, half black and half white, placed on each segment ; along 



