Classification

Aphidinae: Macrosiphini

Common name(s)

Artichoke aphid

Diagnosis

Small to medium-sized, pale greenish white to yellowish green, almost translucent aphids with pale appendages, except that apices of the very long siphunculi distinctly dusky. Body length 1.4-2.5 mm. Alatae have a subrectangular solid black dorsal abdominal patch. Antennae as long as body length or little longer. Processus terminalis seven times longer than base of last antennal segment. Siphunculi three times as long as cauda.

Aphids collected on P. lanigerumare light green, whereas those collected on P. glabrum are almost white.

Distribution

Widely distributed through the temperate and warm temperate regions of the world (Blackman & Eastop, 2000); Australia; New Zealand; New Guinea; India: Meghalaya; Karnataka; Sikkim; Tamil Nadu.

Host plant(s)

Polygonaceae: Polygonum glabrum Willd., Polygonum lanigerum R. Br.

Measurements

Aptera: Length of body 1.60, width 0.79; antennae 1.62, segments III: IV: V: VI 0.31: 0.23: 0.23: (0.09+0.63); u.r.s. 0.13; h.t.2 0.07; siphunculus 0.57; cauda 0.19.
Alata: Length of body 1.8, width 0.9; antennae 1.94, segments III: IV: V: VI 0.47: 0.34: 0.29: (0.09+0.79); u.r.s. 0.12; h.t.2 0.08; siphunculus 0.40; cauda 0.13.

Seasonal occurrence

January, June-July and September-October.

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Capitate apical hairs in lateral view
	Habitus