Lebinthus Stål, 1877

Baroga-Barbecho, Jessica B., Tan, Ming Kai, Yap, Sheryl A. & Robillard, Tony, 2020, Taxonomic study of Lebinthus Stål, 1877 (Orthoptera: Gryllidae: Eneopterinae) with description of six new species in the Philippines, Zootaxa 4816 (4), pp. 401-438 : 403-404

Key to species of Lebinthus Stål, 1877 in the Philippines

1. Body with yellowish/whitish longitudinal bands along the whole body. Male FWs without a rounded false mirror in the harp.................................................................................................... 2

- Body without yellowish/whitish longitudinal bands along the whole body. Male FWs with a rounded false mirror in the harp.................................................................................................... 4

2. Longitudinal yellowish band wide, without a black line ventrally. Face with two black squarish spots between scapes................................................................................... L. luae Robillard & Tan, 2013

- Longitudinal yellowish band thin, underlined ventrally by a narrow black line. Face with a black band between scapes..... 3

3. Longitudinal lateral yellowish band on tergites usually more distinct. Black facial band between scapes thicker, broader than the antennal fossa. Male genitalia: Pseudepiphallic parameres with inner lobe more triangular with more acute apex. Distribution: Palawan, Mindoro, Luzon........................................................... L. bitaeniatus Stål, 1877

- Longitudinal lateral yellowish band on tergites usually faded. Black facial band between scapes thinner, thinner than the antennal fossa. Male genitalia: Pseudepiphallic parameres with inner lobe more rounded and stouter. Distribution: Boracay........................................................................................... L. boracay sp. nov.

4. Face generally whitish................................................................................. 5

- Face generally dark brown or black....................................................................... 6

5. Face mostly whitish, apex of fastigium without contrasted orange. Male genitalia with longer parallel lophi, pseudepiphallic parameres C-shaped. Female tegmina touching each other with apex more angular. Distribution: Luzon.................................................................................................. L. puyos Robillard, 2013

- Face with whitish bands below eyes, clypeus black with yellow edge. Male genitalia with short rounded lophi. Female tegmina clearly separated from each other with apex rounded. Distribution: Leyte .................... L. estrellae Robillard, 2015

6. Pronotal lateral lobe generally dark brown with some light yellow pattern at ventral half............................. 7

- Pronotal lateral lobe black or dark brown dorsally, ventral margin yellow with a median black pattern.................. 9

7. Female tegmina touching each other with apex angular. Distribution: currently known only from Panay................................................................................................... L. dannybaletei sp. nov.

- Female tegmina clearly separated, not touching each other; apex rounded. Distribution: not known from Panay........... 8

8. Larger, PL 2.8 mm. Female tegmina longer, reaching middle of second tergite; with five longitudinal veins. Apex of female ovipositor without denticulation. Female copulatory papilla pentagonal shape. Distribution: Luzon (only female known)........................................................................................ L. magayon sp. nov.

- Smaller, PL <2.5 mm. Female tegmina shorter, reaching posterior end of first tergite; with six longitudinal veins. Apex of female ovipositor with denticulation. Female copulatory papilla cylindrical, narrowing apically. Distribution: Mindanao........................................................................................... L. parvus sp. nov.

9. Male genitalia with pseudepiphallic lophi stout, about as long as wide (width at the base). Female tegmina touching (or nearly) each other with apex angular or very far from each other with apex rounded...................................... 10

- Male genitalia with pseudepiphallic lophi more elongated, longer than wide (width at the base). Female tegmina always touching (or nearly) each other with apex angular............................................................... 11

10. Larger, PL ~ 2.7 mm. Male genitalia with pseudepiphallic parameres spade-shaped. Mirror (d1) of male tegmen with basal margin rounded. Female tegmina touching each other with apex angular. Distribution: Mindanao....... L. palaceus sp. nov.

- Smaller, PL ~ 2.1 mm. Male genitalia with pseudepiphallic parameres F-shaped. Mirror (d1) of male tegmen with basal margin angular. Female tegmina very far from each other with apex rounded. Distribution: Luzon........ L. sanchezi Bolívar, 1889

11. Very large, PL ~ 2.5 mm. Male genitalia with pseudepiphallic lophi more cylindrical and pointing externally. Female tegmina nearly touching each other. Distribution: Palawan ............................................... L. hamus sp. nov.

- Much smaller, PL ~ 2.1 mm. Male genitalia with pseudepiphallic lophi triangular and pointing posteriorly. Female tegmina touching each other, partly overlapping. Distribution: Luzon, Negros Oriental .. L. polillensis Baroga, Yap & Robillard, 2016