88 Trans. Acad. Sct. of St. Louis 
together. Riley was much impressed by the attraction of insects 
for one another from a distance, and he tried to account for it 
by what is known in man as telepathy, for he says: ‘‘this power 
would depend neither upon scent nor upon hearing in the ordi- 
nary understanding of these senses, but rather on certain subtle 
vibrations as difficult for us to apprehend as is the exact nature 
of electricity.”’ 
Rau’ describes the courtship of Telea polyphemus and says 
that during sexual excitement the antennae of the males are 
erect and alert, while on other occasions they are drooping and 
limp. 
Soule" concludes from observations on cecropia, promethea 
and angulifera that there is some emanation from the ovipositor 
which attracts the male. The female protrudes the whole ovi- 
positor which excites the males, and no male will mate or ap- 
proach the female without being attracted in this way. 
Hamm” while collecting Lepidoptera carried a bag in which 
a week previously he had confined a moth of Bombyx quercus. 
Several males of this species were attracted to this bag, and he 
attributed the attraction to the scent of the female still retained 
in the bag. 
Von Dalla Torre™ says the females of many Lepidoptera give 
out perceptible odors to the male and thereby induce copulation. 
It seems proven that by extending the ovipositor the female can 
cause the dissemination of odor which attracts the male. 
Hauser" finds that Saturnia pavonia never makes an attempt 
to mate when the antennae are off. 
Rau shows that the female moths as well as the males dis- 
play much emotion at mating time. When a male is introduced 
into the cage, the female often protrudes the ovipositor and 
gently or nervously moves the wings, thereby disseminating the 
odor, and brings him to great excitement. She sometimes chases 
him about the cage. 
Fritz Mueller'® says the males of many hawk moths can scent 
10Canad. Ent. 56:271. 1924. 
pant 9: a 1901. 
12Ent. Monthly Mag. 6: =. Ag 1895. 
18Quoted by y Meotndeo, loc, ci 
by Mayer and Soule, Psyche, 9:19. 1900. 
. Acad. Sci. St. Louis, 20: 275-319. 19 
Butterfly Hunting in Many Eandn 1912. 
