62 
BRITISH APHIDES. 
larly, amongst 72 specimens of Ajpiis productus, taken 
at anotker time from a pond near Eouen, no less tkan 
33 were proved to be males. 
At first Ratzeburg appears to kave endorsed Morren’s 
idea tkat winged male Apkides sometimes paired witk 
winged females, and tkat tke last insect soon after- 
wards commenced tke process of oviposition. He 
states tkat ke saw suck a union take place in May, in 
a species of Apkis wkick feeds on tke birck, and wkick 
kas since been identified witk Gallipterus oblongus of 
Kock. Tkis statement called fortk remarks from 
Kaltenback and Boucke, botk of wkom skowed tkat 
neitker ancient nor modern autkors kave ever proved 
tke occurrence of any sexual union of tke male of a 
true Apkis witk any winged female wkatever.^ More 
lately Huxley, Walker, and otkers kave asserted tke 
same. Ratzeburg did not afterwards get any confirma- 
tion of kis observation, but ratker leaves one to infer 
from kis subsequent writings tkat, as regards tkis par- 
ticular point, some error migkt kave crept in. 
Amongst tke early classifiers of ♦Apkides in tkis 
country may be mentioned tke names of Samouelle, 
wko made a list of forty-one Britisk species, and of 
William Curtis, t wko gave a memoir to tke Linnman 
Society on tke cause of tke koney-dew, and described 
tke kabits of tke large willow Apkis and otker species. 
J. B. Curtis, J our well-known entomologist, afterwards 
proposed to erect some new genera, tke ckaracters of 
wkick ke partly based upon tke different positions and 
modes of articulation of tke rostrum. Lastly, amongst 
Bnglisk naturalists I may mention tke name of my excel- 
lent friend tke late Francis Walker, wko for many 
years assiduously collected, and in tke year 1848 
publisked in tke ‘ Annals of Natural History ’ a de- 
* Vide ‘ Entomologisclie Zeitung/ 1844, pp. 9-81, 133-410, and also 
Haliday’s translation of note, as quoted by Walker in ‘ Ann. Nat. Hist.,’ 
vol. i, 1848, p. 259. 
f W. Curtis, “ Observations on Aphides,” ‘ Linn. Trans.,’ vol. vi, 
p. 75. 
X J. B, Curtis, ‘ Journal of Royal Agricultural Society,’ vol. vii and 
others. 
