JamesonMary LizDrumontAlainAroid scarabs in the genus Peltonotus Burmeister (Coleoptera, Scarabaeidae, Dynastinae): key to species and new distributional dataZookeys31720132013320639510.3897/zookeys.320.5352 Peltonotus deltamentum http://species-id.net/wiki/Peltonotus_deltamentum Jameson & Wada, 2004Figs 25, 38, 54, 59Diagnosis (male only).

Length ~16.6 mm, color overall castaneous, elytra castaneous with weak iridescent bloom, head with some multisetigerous punctures, labrum bi-emarginate, mentum triangular in apical half (Fig. 25), labial palpomere 2 enlarged and dorsoventrally flattened, mala with dense lamellate setal brush (Fig. 38), maxillary stipes with setae curled at apices (Fig. 38), male protibia tridentate with basal tooth weakly developed, male proclaw strongly arcuate in ventral view (Fig. 54), form of parameres (Fig. 59).

Distribution.

Indonesia, Borneo Island (Kalimantan).

Mentum, ventral view, showing form of apical half of mentum and form of labial palpomere 2 (in comparison to palpomere 1). 25 Peltonotus deltamentum 26 Peltonotus gracilipodus 27 Peltonotus kyojinus 28 Peltonotus malayensis 29 Peltonotus podocrassus 30 Peltonotus nasutus 31 Peltonotus nethis 32 Peltonotus pruinosus 33 Peltonotus similis 34 Peltonotus sisyrus 35 Peltonotus talangensis.

Maxilla, ventral view, showing mala with or without lamellate setal brush (setae thick and strongly flattened), and showing stipes with or without setae curly at apices. 36 Peltonotus animus 37 Peltonotus cybele 38 Peltonotus deltamentum 39 Peltonotus favonius 40 Peltonotus karubei 41 Peltonotus malayensis 42 Peltonotus mushiyaus 43 Peltonotus talangensis 44 Peltonotus tigerus. Arrows indicate lamellate setal brush.

Male prolegs, dorsal view (45–49), male protarsomeres, dorsal view (50–53), and male protarsomere 5, ventral view (54), of Peltonotus. 45 Peltonotus animus (male protibia tridentate with basal tooth obsolete) 46 Peltonotus cybele (male protibia tridentate with basal tooth well developed) 47 Peltonotus malayensis (male protibia bidentate) 48 Peltonotus talangensis (male protibia tridentate with basal tooth well developed) 49 Peltonotus rubripennis (male protibia tridentate with basal tooth weakly developed) 50 Peltonotus adelphosimilis (arrow showing protarsomere 5 of male with internoapical protuberance) 51 Peltonotus favonius (male protibia bidentate) 52 Peltonotus nasutus (male protibial claw greatly enlarged) 53 Peltonotus similis (arrow showing protarsomere 5 of male with internomedial protuberance) 54 Peltonotus deltamentum (male proclaw strongly arcuate in ventral view).

Male parameres (with or without phallobase), dorsal and lateral views, in Peltonotus. Male parameres are highly asymmetrical, and we illustrate the lateral view that best assists in identification. 55 Peltonotus adelphosimilis 56 Peltonotus animus 57 Peltonotus brunnipennis 58 Peltonotus cybele 59 Peltonotus deltamentum 60 Peltonotus favonius.