Diagnosis (male and female).

Jameson

Mary Liz

Drumont

Alain

Aroid scarabs in the genus Peltonotus Burmeister (Coleoptera, Scarabaeidae, Dynastinae): key to species and new distributional data

Zookeys317201320133206395

10.3897/zookeys.320.5352

Peltonotus

gracilipodus

http://species-id.net/wiki/Peltonotus_gracilipodus

Jameson & Wada, 2004

Figs 26, 62, 77

Diagnosis (male and female).

Length 14.4–16.8 mm, color overall castaneous, elytra castaneous with weak iridescent bloom, head with some multisetigerous punctures, labrum deeply bi-lobed, mentum rounded in apical half (Fig. 26), labial palpomere 2 enlarged and obviously dorsoventrally flattened (Fig. 26), mala with lamellate setal brush, maxillary stipes with some setae curled at apices, male protibia bidentate, form of parameres (Fig. 62), female epipleuron incised and with oblong-oval emargination (Fig. 77).

Distribution.

Indonesia, Sumatra Island.

Remarks.

Peltonotus gracilipodus and Peltonotus podocrassus (distributed in peninsular Malaysia) have quite similar male parameres and females have quite similar epipleura, perhaps indicating recent isolation of ancestral populations.

Figures 25–35.

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.

Figures 61–66.

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. 61 Peltonotus fujiokai 62 Peltonotus gracilipodus and Peltonotus podocrassus 63 Peltonotus karubei 64 Peltonotus malayensis 65 Peltonotus morio 66 Peltonotus nasutus.

Figures 73–87.

Female elytral epipleuron (gray, ventral view) and position relative to metacoxa in Peltonotus. 73 Peltonotus brunnipennis 74 Peltonotus cybele 75 Peltonotus favonius 76 Peltonotus fujiokai 77 Peltonotus gracilipodus, Peltonotus podocrassus and Peltonotus silvanus 78 Peltonotus kyojinus 79 Peltonotus malayensis 80 Peltonotus morio 81 Peltonotus mushiyaus 82 Peltonotus nasutus 83 Peltonotus nethis 84 Peltonotus pruinosus 85 Peltonotus rubripennis 86 Peltonotus similis 87 Peltonotus sisyrus