Petalolyma lii, 2024

Keys to Petalolyma species from Taiwan

Adults

(not including Petalolyma hyalina View in CoL )

1. Forewing ( Fig. 1A, B View Fig ) with veins Rs weakly and M strongly curved, the two veins thus strongly diverging to wing apex; cell m 1 and cu 1 small: length ratio M/M 1+2> 3.0, Cu/Cu 1b> 4.0 ....... 2

- Forewing ( Fig. 1C–E View Fig ) with veins Rs hardly or not, and M weakly curved, the two veins thus not strongly diverging to wing apex; cell m 1 and cu 1 large: length ratio M/M 1+2 <2.0, Cu/Cu 1b <2.0 .... ..................................................................................................... 3

2. Forewing ( Fig. 1B View Fig ) with a dark brown patch along anal margin covering cells m 1 and cu 1, respectively; broadly, irregularly rounded apically. Paramere ( Fig. 2H View Fig ) shorter than male proctiger ............................................... P. lii Liao & Burckhardt , nom. nov.

- Forewing ( Fig. 1A View Fig ) with wide black band along anal margin distal of anal break; indistinctly angular apically. Paramere ( Fig. 2G View Fig ) longer than male proctiger. On Ilex ficoidea View in CoL .......................... ........................................... P. vittata Liao & Burckhardt , sp. nov. 3. Forewing ( Fig. 1C, D View Fig ) rounded apically; wing apex in the middle of cell r 2 margin. Dorsal outline of mesopraescutum, in lateral view, strongly curved ( Fig. 1J View Fig ). Paramere ( Fig. 2I, L View Fig ), in lateral view, irregularly lanceolate with forward pointing apical hook. Female proctiger dorsally distinctly curved, blunt apically .......... ......................................................................... P. formosana Yang View in CoL

- Forewing ( Fig. 1E View Fig ) pointed apically; wing apex at distal end of vein M 1+2. Dorsal outline of mesopraescutum, in lateral view, weakly curved. Paramere, in lateral view, lamellar with forward pointing apical hook. Female proctiger relatively straight dorsally, subacute apically .......................................................... 4

4. Vein M about 1.2 times as long as M 1+2. Paramere blunt apically. On Ilex asprella View in CoL .................................... P. castanopsis Li & Yang View in CoL

- Vein M 1+2 longer than M. Paramere obliquely truncate apically ... .................................................................................. P. nigra Yang View in CoL

Fifth instar immature

(not including Petalolyma formosana , P. hyalina , P. lii , P. nigra )

1. On Ilex asprella View in CoL .................................... P. castanopsis Li & Yang View in CoL

- On Ilex ficoidea View in CoL ................ P. vittata Liao & Burckhardt , sp. nov.