Trichagalma, Mayr, 1907

Melika, George, Pujade-Villar, Juli, Abe, Yoshihisa, Tang, Chang-Ti, Nicholls, James, Wachi, Nakatada, Ide, Tatsuya, Yang, Man-Miao, Pénzes, Zsolt, Csóka, György & Stone, Graham N., 2010, 2470, Zootaxa 2470, pp. 1-79 : 13

Key to the asexual forms of Trichagalma

1 Forewing without dark pigmented spots ................................................................................................ T. acutissimae

- Forewing with dark smoky pigmented spots ............................................................................................................... 2

2 Clypeus coriaceous, brown, with median incision ventrally ( Fig. 31); scape, pedicel and F1 – F2 brown, remaining flagellomeres dark brown; forewing margin with very short dense cilia ( Fig. 34); radial cell of forewing 3.5 – 3.9 times as long as broad, R1 on a short distance running along wing margin, Rs+M inconspicuous ( Fig. 35) ............... ................................................................................................................................................................. T. formosana

- Clypeus uniformly microreticulate, black, without median incision ( Fig. 24); antenna entirely and uniformly black ( Fig. 25); forewing margin with long cilia, radial cell 4.3 – 4.5 times as long as broad, R1 reaching wing margin, Rs+M distinct, reaching basalis ( Fig. 28) .................................................................................................... T. serratae