360 TRANSACTIONS, NATURAL HISTORY SOCIETY OF GLASGOW. 
been beaten after dark in a state of helpless intoxication from the 
flowers of the Sallow, and Vanessa antiopa, Linn., is also said to 
have occurred at the same flower in the evening. Vanessa atalanta, 
Linn., is said to have appeared at sugar. As a contrast to these 
confirmed tipplers, the Argynnide and Satyride are by no means 
assiduous flower-lovers, and the same may be said of certain of the 
Lycenidee. Satyrus semele, Linn., prefers sunning itself on sandy 
banks, Pararge egeria, Linn., loves the broad green leaves of the 
Elm, whilst Zhecla rubi, Linn., never strays far from its native 
Birch. 
In certain of the Sphinges, or Hawk-moths, the tongue reaches 
a great development, and Sphina convolvuli, Linn., probably pos- 
sesses the longest organ of this description among European 
insects. Such of the Sphinges as fly by day are all flower-lovers ; 
and the Humming-Bird Hawk-moth (Macroglossa stellatarwm, 
Linn.) darts from flower to flower from early morn till late at night. 
So swift are the movements of this insect that it is almost impossible 
to catch it whilst on the wing. Chcerocampa is also a day-flying, 
flower-seeking genus; but of this I cannot speak from personal 
experience. The Smerinthi, on the other hand, are much slower 
in flight, and do not appear to go to flowers. 
It is, however, among the more widely-distributed Noctue, 
the true “night-hawks,” that we must search for the insects likely 
to be of the greatest service to plants in the matter of cross- 
pollination, and in practically the whole division the tongue is 
well developed. Yet here, nevertheless, we meet with genera 
that seldom or never seek nutriment of any description in the 
winged state, and among these, judging only from my acquaint- 
ance with the few species occurring in this district, I would put 
Acronycta, Tapinostola, Polia, and Anarta. I was inclined also 
to range on the same side certain species of Leucania, as L. pallens, 
Linn., and LZ. impura, Hiib.; for I have often worked in localities 
where these two species are common, and where flowers are also 
abundant, without having seen the Moths approach the flowers. 
Other entomologists have had apparently a different experience, 
and these two species of Leucania must be placed among honey- 
bibbers. 
In the genus Plusia the nectar-sipping habit reaches its greatest 
development: These beautiful Moths, with their metallic glancing 

