Airapus rudolphi Bellmann & Minkina, 2023

Airapus rudolphi Bellmann & Minkina, 2023 View in CoL

( Figs 4A–F View FIGURES 4 )

Type material examined. Holotype, female: Indonesien, North Sumatra, Aceh-Prov. Umg. Von Kutacane , Ketambe , 02.–07. xii. 2013, leg. Horst Rudolph. depository

Additional material examined. 1 male: Indonesia: N Siberut, Mentawai Islands , Mount Malancan, 100m, 18–21.i.2024, leg. Stanislav Jákl [ ISEA] .

Short complementary description. The same as holotype except: length: 3.4 mm, body blackish, protibiae slightly more inwardly curved, apical spur of protibiae very slightly less outwardly curved and very slightly less downwardly bent, metaventral plate with a more distinct median concavity.Aedeagus ( Fig. 4F View FIGURES 4 ). Parameres distinctly shorter than phallobase, regularly rounded at apex, in basal, down part with distinct, characteristic less sclerotized sinuation.

Variation. Length from 3.4 to 3.6 mm. Body colour from brownish to blackish. Punctation of pronotum slightly variably distributed.

Sexual dimorphism. Female metaventral plate with a less distinct median concavity; protibiae slightly more inwardly curved, apical spur of protibiae very slightly less outwardly curved and very slightly less downwardly bent.

Remark. Externally, there are no significant differences (except of sexual dimorphism) between the holotype female from Aceh Province in North Sumatra and the male from the Mentawai Islands.

Distribution. Indonesia: Sumatra and Siberut Islands.