Reduced genitalia consisting of several seta-covered bumps in the hind region of an adult female. Usually referred to as rudimentary gonapophysis.

Third main body region of the aphid, consisting of eight segments.

Pertaining or belonging to the abdomen.

A row of polygonal ridges, bearing shortened spines, on the dorsal lateral surface of abdominal segments 5-7 for stridulation. See rastral spines.

A small cluster of primary sensoria adjacent to a larger primary sensorium, both occurring on the distal end of the base of the terminal antennal segment.

Seta between the basal and apical primary setae on the fourth rostral segment. Also known as secondary setae.

An aphid with wings, except in aberrant cases always an adult.

Describing a nymph bearing wing pads destined to become an alata.

Of or pertaining to the anus.

A sternite of variable shape and size ventral to the anus.