14 
hair. The spiracles are lighter brown. The spot on the ninth seg¬ 
ment is distinctly an organ situated in the interior of the larva, and 
shifts its position as the creature walks. The pupa is ochreous-brown, 
shaded, and darkens considerably before the insect emerges. The 
larvie have a great liking for eating the pupae. The eggs are oval, 
quite white when laid, but turning slightly yellow soon afterwards, 
and may probably alter further before hatching. I have been unable 
to see copulation taking place in either of the jars containing imagines 
bred from all spotted or all plain larvae, although they pair freely in 
the jar where the larvae were mixed. Realizing that the females may 
be parthenogenetic, I have saved the presumed males in their jar, and 
will report if I obtain larvae there, as that will indicate that the spot is 
not a sexual mark. I exhibit living ova, larvae, pupae and im¬ 
agines, and shall be pleased if members will help themselves to 
what they require. The perfect insects sit with their heads considerably 
raised, antenme lying along their backs, and the females with the 
body bent upwards and the ovipositor protruding. They remain quiet, 
except in the presence of the opposite sex, when they flutter wildly, 
running round and round until copulation takes place. I he period of 
this extends to several hours. Btainton’s sexual distinction of the 
Eplmtiae reads as follows ‘ An ten me of male not curved near the 
base; in the male the base of the costa beneath with a tuft of hair. 
Messrs. J. A. Clark and Nicholson exhibited their series of Bombyx 
quercus AND B. calluna3 to assist in illustrating a paper on those 
species read by Capt. B. B. Thompson, who showed his own series, 
and those of Mr. A. J. Hodges ; among the latter were two males, 
supposed to be the var. roboris. Relating to Collecting observations, 
Mr. J. A. Clark said that Cyaniris argiolus was well out at Epping 
Forest, and Mr. Tutt said that he had seen Eucliloe cardamines at 
Hereford on April 10th. Mr. Bayne recorded a fresh specimen of 
Taeniocampa munda at the New Forest on May 3rd. Mr. May said 
that an Erith correspondent, named Goddard, had found larvae of 
Nyssia hispid a via at Darenth and Chattenden Woods, feeding on 
Spanish (or sweet) chestnut, but all except one were “ ichneumoned.” 
Mr. Tremayne stated that he had a brood each of Amphidasys strataria 
and Ennomos quercinaria feeding on whitethorn in separate jars. The 
leaves which had been nibbled, or partly eaten, by the A. strataria, 
had almost immediately turned brown round the edges and dried up, 
while those which had been similarly treated by the E. quercinaria 
remained quite fresh. It was suggested that, in the case of the 
A. strataria, the appearance might be caused by the action of somo 
liquid (? acid) secreted in the mouths of the larvic, such liquid not 
being present in E. quercinaria. 
May 19th, 1896.—Exhibits :— Mr. Tutt: Butterflies bred from 
PUP.® WHICH HAD BEEN SUBJECTED TO DIFFERENT TEMPERATURES, and read 
the following notes by Mr. Merrifield “ Gonepteryx rhamni. The 
specimens are divided into two batches. (1) The pupae of the first batch 
were subjected to high temperature. These show an increase of yellow 
scales in the female, probably caused by temperature, but not enough 
individuals were bred to be certain that this was so. (2) The pupae 
of the second batch were subjected to low temperature. These spoci- 
