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. They 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. Rownanp-Brown, 
M.A., Hon. Secretary. 
THe South Lonpon EnromotogicaL AND NaturaL History 
Sacrety.—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, Cethosia cydippe, and 
several species of the brilliant genus Danais, D. celestis, D. illustris, 
and D. sebe.—Mr. Harrison and Mr. Main, a bred series of Ruralis 
betule. — Mr. Newman, series of richly coloured specimens of 
Saturma pavonia (carpint) from Kent.—Mr. Andrews, an ichneumon, 
Bassus letatorvus, female, which had been bred from a Syrphid, 
Syrphus balteatus.—Myr. Rayward, ova of Tiliacea citrago in siti on 
the sears of the leaf-stall 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. melpomene, aglaopa, forms isolda, rubri- 
picta, adonides, and gisela, H. xenoclea, plessent forms corona and 
diadema, H. erato, estrella form feyert, and H. xenoclea, plesseni form 
niepeltv, and commented on this grand series of graduation forms. 
January 14th, 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 melanie forms of Hnnomos 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 gaye 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 20th.—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 
