Drepanaphis keshenae

All adult Drepanaphis keshenae viviparae are winged. These alatae (see pictures below) are light brown or tan with a yellowish undertone. The body is somewhat heavily covered with a white, waxy, flocculent secretion, except around the prominent black spinal tubercles and areas around the siphunculi. The eyes are large and carmine coloured. The antennae are on prominent diverging antennal tubercles. The antennal terminal process is nearly 10 times the base of antennal segment VI. The basal 0.60-0.67 of antennal segment III bears 12-15 rather large, round, secondary rhinaria. The rostrum does not quite reach to the second pair of coxae. The fore femora are dark brown to dusky black. The wings are hyaline, and all veins, except the costa and subcosta, are broadly banded with dusky brown, especially toward the tip of each vein (cf. several Drepanaphis spp., including Drepanaphis carolinensis, Drepanaphis sabrinae and Drepanaphis knowltoni, which do not have their wing veins dark-bordered). The abdomen is light brown to yellowish olive green, sparsely clothed with fine hairs. The dorsum of tergite III bears a pair of black finger-like tubercles, united for at least half of their length, often appearing as a single tubercle. The tubercles on tergites I, II & IV are inconspicuous or absent (cf. Drepanaphis keshenae, which has tubercles on tergites I-IV, those on 1 to 4 all conspicuous, those on tergites I & III being long and finger-like). The siphunculi are dark, somewhat constricted at the base, and with a narrow pale flange. The cauda is yellow, short, globular on a conical base with several long hairs. The body length of Drepanaphis keshenae alatae is 2.0-2.5 mm.

Images above copyright Vitaly Charny under a Creative Commons 3.0 License.

Immature Drepanaphis keshenae are green or orange-green (see picture below of dispersed colony with adult alatae and immatures on leaf).