To the knowledge of the genus Aphthonoides Jacoby, 1885 (Coleoptera: Chrysomelidae: Galerucinae: Alticini) from Malaysia and Indonesia

Abstract

Four new species of the genus Aphthonoides Jacoby, 1885 are described: A. bukittinggiensis sp. n. (from Indonesia), A. tambunanensis sp. n., A. trusmadiensis sp. n. (from Malaysia) from the beccarii species-group, and A. pseudosabahensis sp. n. (from Malaysia) from the laticollis species-group. The figures of general views, aedeagi and spermathecae are given for them and the majority of related species. A new identification key to species of the genus Aphthonoides from Sundaland and the Philippines is given. Two new species-group (the beccarii and the laticollis) are proposed. The species of the laticollis group have the wide pronotum (more than 1.45 times as wide as long) with lateral margins nearly straight, converging anteriorly; anterior setigerous pore on lateral margin of the pronotum not or very slightly protrude outwards; basal margin of the pronotum strongly convex; male protarsomere I not or very slightly enlarged. Species of the beccarii group have the narrower pronotum (1.35 or less times as wide as long) with lateral margins straight or rounded, not converging anteriorly; anterior setigerous pore on lateral margin of the pronotum distinctly protrude outwards; basal margin of the pronotum slightly convex; male protarsomere I distinctly enlarged. The geographical distribution of A. beccarii Jacoby, 1885 and A. laticollis Heikertinger, 1940 has been clarified. The latter species is recorded for Malaysia for the first time.

Keywords

• coleoptera
• chrysomelidae
• galerucinae
• aphthonoides
• indonesia
• malaysia
• borneo
• sumatra
• new species