65 
This species, which is called by the common name “Green Dolphin” 
in England, sometimes appears in large numbers on the field pea, in¬ 
festing the young shoots and leaves of the vine, and, according to mv 
observations, even the young pod. Although found every year, it does 
not often appear in sufficient numbers to seriously injure the plants. 
It is also found frequently on several other plants as the mead¬ 
ow sweet ( Spirma ulmavid) , sweet pea ( Lathyrus odovatus) , shepherd’s 
purse (Capsella bvrsa-pastoris) , the stinging nettle ( Urtica dioica), etc. 
Although the past season was quite a favorable one for the increase of 
Aphides, I found but few specimens of this species, and these mostly 
sporadic. The descriptions given of the specimens found in Europe 
correspond so exactly with the characters of those found in this coun¬ 
try, that they might be adopted without a single variation, but the 
description found below is from specimens found in Illinois. 
Winged female. Length of body about.10 inch, to the tips of the wings 
about .20 inch. Antenna? very long, extending to the tip 3 of the honey- 
tubes,'slender. Body rather elongate, sub-fusiform, acuminate behind; legs 
long and slender, and wings rather more than usually long. In the fore¬ 
wings the stigma is elongate and narrow, the apex being elongate pointed, 
the inner angle being so obtuse as to be almost obliterated; the fourth 
vein slightly curved except in the middle, where it is somewhat sharply 
curved. Head usually dull yellowish, or greenish yellow. Thorax 
pale brown, olive yellow or ocher yellow. Eyes black or dark 
brown; antennae black or dusky, except the basal joints, which 
are whitish or pale green. Abdomen convex, smooth, sea-green. Honey- 
tubes varying from green to blackish, very long, extending beyond the 
tip of the tail, their length fully equal to one-third the length of the 
b°d) (exclusive of the tail), usually described and figured as cylindri¬ 
cal or slightly enlarged toward the base; while this is the case with 
the apterous individuals, in all the winged specimens I have examined 
they are slightly enlarged in the middle portion. Tail distinct, elon¬ 
gate-conical, slender, curved upward and usually yellowish or pale » 
green, less than half the length of the honey-tubes/ Wings pellucid, 
costal and sub-costal veins pale at the base, yellowish or darker 
towards the extremity; discoidal veins dark and distinct; stigma pale 
brown or ocher color. 
Wingless female. —Large, length of body .11 inches. Shining, bright 
green of various shades, “ sometimes mealy and dull, showing the 
darker green tint below in transverse bands.” Elongate oval, acumin¬ 
ate behind. Eyes black; front of the head and two first joints of the 
antennae somewhat paler than the rest of the body; tips of the femora 
and tarsi, and tips of the honey-tubes, dusky. Tail about half as 
long as the honey-tubes, rather slender, elongate conical. Antennae 
about as long as the body. Beak rather short. 
Passerini says Siphonophora gei is also a synonym of this species. 
Taken in latter part of May at Carbondale, Illinois. 
Siphonophora gerardre. n. sp. 
This little species is given with some hesitation, as but few speci¬ 
mens weie observed, but as these were partly wingless, and in various 
stages of growth, and were observed on the same plant at two points 
some distance apart, I feel warranted in describing it as new and 
*V 
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