Reticulaphis Takahashi

Yeh, Hsin-Ting, Ko, Chiun-Cheng & Hsu, Tung-Ching, 2008, Review of the East-Asian genus Reticulaphis (Aphididae: Hormaphidinae), with two new species, Zootaxa 1782, pp. 34-48 : 36

Reticulaphis Takahashi

Type species: Reticulaphis shiiae Takahashi, 1958: 11 .

Generic diagnosis apterous adult female. Body flattened with strongly sclerotized cuticle; body shape elliptical, ovate to broadly ovate; body colors always black with purplish-blue-burnish in life, some species with waxy powder on margin of body. Prosoma (cephalothorax+abdominal tergite I) with reticulated pattern on dorsum. Antennae shorter than space between them, with L-shaped bend, 2 or 3 indistinct segments, with 2 minute rhinaria and 1 terminal seta near apices of antennae. Eyes submarginal to marginal with 2 or 3 facets. Five pairs of minute to stout setae on central axis of prosoma, 1st pair between eyes, 2nd on pronotum, 3rd on mesonotum, 4th on metanotum, and 5th on abdominal tergite I; prosoma with 10 pairs of marginal or submarginal setae, 3 pairs on head anterior to eyes, 1 pair on pronotum, 3 pairs on mesonotum, 2 pairs on metanotum, and 1 pair on abdominal tergite I; these setae short or long, with acute, blunt, fan-shaped, or serrated apices. Legs short, front and middle legs usually concealed under body, hind legs somewhat exposed; front and middle tibiae shorter than or equal to femora, but hind tibiae shorter or longer than femora; tarsi narrower than tibiae, longer than wide; 1 long fine capitate seta on dorsal front tarsi, 2 such setae each on middle and hind tarsi. Abdominal tergites II–VII fused, separated from posterior margin of prosoma; without siphunculi; along tergites converging sides with 6 pairs of minute setae. Abdominal tergite VIII an equilateral triangle with 2–4 setae. Cauda knobbed, constricted basally. Subanal plate deeply bilobed, each lobe with 4–7 setae.