dcsimg

Description

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Description of holotype (male). Length 14.1 mm. Widest width 6.8 mm. Color (Fig. 4): Head, pronotum, scutellum, pygidium, elytron, and venter castaneous. Elytra lacking iridescent bloom. Head: Surface of frons at base sparsely punctate, disc and apex moderately densely (base) to densely (apex) punctate; punctures simple, moderate in size, some unisetigerous; setae short and moderately long, mixed. Surface of clypeus moderately densely punctate (base) to densely punctate (margins); punctures simple, moderate in size (base) to small (apex), some unisetigerous; setae moderately long. Clypeus laterally weakly arcuate, corners square, apex truncate, beaded; bead not weakly arcuate posteriorly. Labrum broadly emarginate at middle. Mandible with external edge rounded, inner apex with 1 poorly developed tooth. Mentum with apical half triangular (Fig. 10), notched at middle; palpomere 2 dorsoventrally flattened, about 1.5 times width of palpomere 1, setose; setae dense, moderately long, rufous, weakly thickened, not curled at apices. Maxilla (Fig. 7): Mala with lamellate setal brush; stipes with setae dense, long, not flattened at apex, not curled at apices; palpomere 2 with poorly developed internomedial bump. Antennal club slightly longer than segments 2–7 combined. Pronotum: Basal bead lacking anterior to scutellum; anterior bead incomplete. Surface moderately densely punctate, more so laterally; punctures simple, lacking setae. Lateral margin lacking long setae. Elytron: Sutural length about 4.0 times length of scutellum. Surface shagreened with 5 moderately developed, impressed, punctate, longitudinal striae between suture and humerus; punctures ocellate, moderate in size, moderately dense, lacking setae. Intervals similarly sculptured. Propygidium: Surface densely punctate, some contiguous (disc) to confluently punctate (laterally); punctures simple, moderate in size, unisetigerous; setae short, tawny and rufous. Pygidium: Surface densely punctate, more so laterally; punctures ocellate, unisetigerous; setae short, rufous. Venter: Prosternal keel elongate; apex projecting anteriorly at about 90° with respect to ventral plane, extends to about a quarter of the height of protrochanter, truncate. Legs: Protibia (Fig. 13) of male tridentate; lateral margin lacking short, dense setae. Protarsomere 5 subequal in length to tarsomeres 1–4 combined, moderately thickened; protarsomeres 3–4 with apices weakly expanded, dorsal and ventral apices of tarsomeres 1–4 clothed with dense, short setae. Anterior claws with inner claw broadly curved, about 2 times thicker than outer claw; outer claw elongate-arcuate, about half length of inner claw; empodium bulbous at base. Meso- and metatibial claws of male with 2 setae, claw angled toward venter, about half length of metatarsomere 5. Metatibia of male with apical spurs nearly straight; ventral spur produced to middle of metatarsomere 1, dorsal spur produced to apex of metatarsomere 1. Parameres: Fig. 22a–b.
Allotype (female). Differs from the holotype male in the following respects: Length 15.2 mm. Widest width 7.2 mm. Elytron: Epipleuron (Fig. 17) in ventral view simple, terminating adjacent to sternite 3; in dorsal view, expansion not developed. Propygidium: Surface moderately densely punctate, some punctures confluent laterally; punctures simple, small, moderate in size (mixed). Legs: Anterior claws half length of protarsomere 5, angled toward venter.
Paratypes (females=21, males=95). Differ from the holotype and allotype in the following respects: Color: Elytron castaneous with weak reddish undercolor.
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bibliographic citation
Jameson ML, Jakl S (2010) Synopsis of the aroid scarabs in the genus Peltonotus Burmeister (Scarabaeidae, Dynastinae, Cyclocephalini) from Sumatra and description of a new species. In: Ratcliffe B, Krell F-T (Eds) Current advances in Scarabaeoidea research. ZooKeys 34: 141–152.
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Distribution

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Indonesia, Sumatra Island.
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Mary Liz Jameson, Alain Drumont
bibliographic citation
Jameson M, Drumont A (2013) Aroid scarabs in the genus Peltonotus Burmeister (Coleoptera, Scarabaeidae, Dynastinae): key to species and new distributional data ZooKeys 320: 63–95
author
Mary Liz Jameson
author
Alain Drumont
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Distribution

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Locality records (Fig. 23) (n=118). SUMATRA. West Sumatera Province (118): Mt. Talang (1500m).
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