Euxestocis, Miyatake, 1954

Key to the described Euxestocis species

(Updated from Kawanabe 2003)

1 First abdominal sternite in male with pubescent fovea........................................................ 2

- First abdominal sternite in male without pubescent fovea...................................................... 3

2 Body smaller, TL less than 1.79 mm. Pronotum slender, PL/PW more than 0.85. Fronto-clypeal ridge in male with a minute setiferous pit on each side. Eighth abdominal sternite in males devoid of many long hairs around the apical area.................................................................................... Euxestocis bicornutus Miyatake

- Body larger, TL more than 1.82 mm. Pronotum broader, PL/PW less than 0.79. Fronto-clypeal ridge in males without minute setiferous pits. Eighth abdominal sternite in males provided with many hairs around the apical area and apical margin................................................................................... Euxestocis satoi Kawanabe

3 Pronotum rather slender, PL/PW more than 1.0, with two conspicuous, upheaved lateral robust pronotal horns. The pronotal disk with an impunctate median line........................................... Euxestocis formosanus Miyatake

- Pronotum broader, PL/PW usually less than 0.97, with two small pronotal horns. The pronotal disk without an impunctate median line................................................................. Euxestocis menglaensis sp. nov.