DEEPANOSIPHUM PLATANOIDES. 
183 
before they produce young. The images appear very 
early in the spring, very soon after the unfolding of 
the leaves. Later in autumn the perfect sexes come 
on the scene, and then they may occasionally be found 
m coitu. 
The habits of this genus are sporadic. Large 
companies are not formed, but the insects nestle under 
the leaves in numbers rarely exceeding five. 
Deepanosiphum PLATANOIDES, 8chr> Plate XXXVI. 
Aphis ;platanoides^ Schr., Ratz., Kalt., Walk. 
Drepanosiphum platanoides^ Koch. 
Siphonophora platanoides, Pass, 
Apterous viviparous female (?). 
Indies. 
Size of body 0*080 X 0*030 
Length of antennse 0*090 
5 , „ cornicles 0*020 
Millimetreis. 
2*02x0*76. 
2*27. 
0*58. 
Oblong, almost linear. Bright green. Head and 
thoracic portion well developed. The rest of the 
abdomen much ringed. Two dark green stripes on 
the neck, followed by a long oval ring of green down 
the abdomen. Antennal joints strongly tipped with 
black. Insect covered with fine capitate hairs. 
Taken on the sycamore, Acer pseudoplatanus^ as early 
as May the 5th. Very probably these develop into the 
pupge. 
Pupa, 
Variety 1. Variety 2. 
Indies. Millimetres. 
Size of body from 0’085 x 0’040 to 0'120 x 0*050. 3*04 x 1*27. 
Length of antennae 0*140 0*110. 2*79. 
„ cornicles 0*030 0*025. 0*62. 
Var. 1. — Wholly bright yellow, except two greenish 
stains down the dorsum. Head very broad. Antennge 
