72 THE ENTOMOLOGIST. 



the insect's saw is made to cut, not like the carpenter's saw, by a 

 push, but by a pull, and if so, is it because the latter movement 

 involves less risk or damage to these delicate structures through 

 bending or breakage ? Again, what is the use of certain extremely 

 fine denticulations on the teeth themselves, not at their apices ? A 

 discussion followed, in which Professor T. Hudson Beare supported, 

 on the whole, the hypotheses suggested by the exhibitor. Dr. T. A. 

 Chapman, however, was strongly of opinion that the name " saw " 

 for these instruments, though well describing their general appear- 

 ance, was misapplied as regards their function. Tliey were really 

 knives, all their cutting was done during the forward movement, the 

 notches being merely a ratchet to hold one " saw " in place whilst the 

 other advanced, as they alternately moved. — H. Rowland-Bbown, 

 M.A., Hon. Secretary. 



The South London Entomological and Natueal History 

 Society.— December 10th, 1908.— Mr. A. Sich, F.E.S., President, in 

 the chair. — Dr. Hodgson exhibited a collection of Lepidoptera from 

 North Queensland, including a fine series of Papilio ulysses, speci- 

 mens of P. sarpedon, Delias nigrina, D. nysa, Gethosia cydippe, and 

 several species of the brilliant genus Danais, D. celestis, D. illustris, 

 and D. sebce. — Mr. Harrison and Mr. Main, a bred series of Buralis 

 hetulcB. — Mr. Newman, series of richly coloured specimens of 

 Saturnia pavonia {carpini) from Kent. — Mr. Andrews, an ichneumon, 

 Bassus Icetatorius, female, which had been bred from a Syrphid, 

 Syrphus balteatus. — Mr. Rayward, ova of Tiliacea citrago in situ on 

 the scars of the leaf-stalk of lime, and which he had found by search- 

 ing. — -Mr. R. Adkin, a female specimen of Agriades bellargus, strongly 

 marked with blue coloration, with complete absence of the usual 

 orange lunules on the hind wings ; and a bred series of Melanippe 

 tristata from ova, showing scarcely any variability. — Mr. W. J. 

 Kaye, Herr Niepelt's types of recently described forms of Heliconius 

 from Ecuador, including H. melpomejie, aglaopa, forms isolda, riibri- 

 picta, adonides, and gisela, H. xenoclea, plesseni forms corona and 

 diadema, H. erato, estrella form feyeri, and H. xenoclea, plesseni form 

 niepelti, and commented on this grand series of graduation forms. 



January lith, 1909.— The President in the chair.— Mr. Tonge 

 exhibited enlarged photographs of several species of Lepidoptera at 

 rest on tree-trunks. — Mr. Harrison Main, the results of the breeding 

 of Aplecta nebulosa and its forms robsoni and thompsoni, to illustrate 

 the remarks of Professor Bateson. — Mr. L. W. Newman, Abraxas 

 grossulariata ab. varleyata, red and yellow forms of Callimorpha 

 dominula, and type and melanic forms of Ennomos autumnaria, with 

 notes on the results of breeding from selected specimens during the 

 last three or four years. — Mr. R. Adkin captured and bred series of 

 Aspilates ochrearia (citraria), and gave details of the breeding and its 

 results. — Professor Bateson, F.R.S., gave an address on "Mendelism," 

 illustrating his remarks by numerous lantern slides. 



January 20^/t.— The President in the chair. Annual Meeting : 

 the Report of the Council stated that the Society had one hundred 

 and sixty-eight members ; that in addition to twenty-three meetings, 

 seven field-meetings or visits to musuems had been made ; that six 



