122 
BEITISH APHIDES. 
hoary ; slightly domed on the dorsum. Antennae green. 
Eyes reddish brown. Nectaries or cornicles pale. 
Tail obtuse and green. 
Pupa. 
Much the appearance of the larva. Abdominal 
edges carinated. Usually a darker green stripe occurs 
down the dorsum. Tarsi olive. Wing-cases the colour 
of the thorax. 
Winged viviparous female. 
Indies. Millimdres. 
Expanse of wings 0’340 8*63 
Size of body 0*090x0*040 2*27x1*01. 
Length of antennae 0*100 2*54. 
„ cornicles 0*030 0*76. 
Bright green. Head and part of prothorax pale 
olive. The two thoracic lobes and scutellum dark olive. 
Abdomen greenj and sometimes hairy. Antennae 
brownish ; the third joint often tuberculate. Eyes 
red. Cornicles long and thin. Genua, ends of tibiae, 
and tarsi brown. Wings large ; insertions green, as 
also are the stigma and cubitus ; other veins brown. 
Kaltenbach found it feeding on the great celandine 
Chelidonium majus. 
The present examples were feeding sparsely under 
the leaves of the garden raspberry, Buhus idceus^ from 
the month of May to October. 
Koch remarks that S. chelidonii much resembles the 
Aphis of the milfoil in form. This resemblance cannot 
relate to its characteristic markings, and must also 
keep out of view the presence of tubercles on the bodies 
of the latter insect. Kaltenbach, on the other hand, 
says Aphis chelidonii much resembles Aphis hrassicce. 
Such descriptions well illustrate the difficulties experi- 
enced in identifying certain species in this variable 
family. 
