Peltonotus

Jameson, Mary Liz & Wada, Kaoru, 2004, Revision of the genus Peltonotus Burmeister (Coleoptera: Scarabaeidae: Dynastinae) from Southeastern Asia, Zootaxa 502 (1), pp. 1-66 : 11-12

Key to Female Peltonotus Species

(Females of P. deltamentum and P. karubei are not known)

1. Apical half of mentum acute, triangulate ( Figs. 19, 28 ) ................................................. ................................................................................... P. sisyrus Jameson & Wada , n. sp.

1'. Apical half of mentum rounded ( Figs. 20–23, 25–27 ) or quadrate ( Fig. 24 )................ 2

2. Apex of labrum bilobed ( Figs. 16–17 ).......................................................................... 3

2'. Apex of labrum broadly emarginate ( Figs. 15, 18 ) to deeply, narrowly emarginate ( Fig. 14 ) ................................................................................................................................. 4

3. Epipleuron as in Fig. 56 .................................................................. P. morio Burmeister

3'. Epipleuron as in Fig. 57 ....................................................................... P. nasutus Arrow

4. Elytra reddish with castaneous vittae ( Figs. 12–13 ) ............................ P. vittatus Arrow

4'. Elytra entirely castaneous, reddish, or black (lacking vittae) ....................................... 5

5. Labrum with apex deeply, narrowly emarginate (e.g., Fig. 14 ) .................................... 6

5'. Labrum with apex broadly emarginate (e.g., Figs. 15, 18 ) ......................................... 10

6. Epipleuron simple, not emarginated in ventral view ( Fig. 58 )........................................ .................................................................................... P. nethis Jameson & Wada , n. sp.

6'. Epipleuron emarginated in ventral view (e.g., Fig. 51 )................................................. 7

7. Maxillary stipes with setae curly at apex (e.g., Fig. 30 ) ............................................... 8

7'. Maxillary stipes with setae straight, not curly at apex .................................................. 9

8. Epipleural emargination with well­developed tooth in ventral view ( Fig. 51 ) ............... ............................................................................................. P. brunnipennis Benderitter

8'. Epipleural emargination with moderately developed tooth in ventral view ( Fig. 53 ) .... .......................................................................... P. gracilipodus Jameson & Wada , n. sp.

9. Epipleural expansion well­developed in dorsal view (ventral view shown in Fig. 63 ) .. ......................................................................... P. suehirogarus Jameson & Wada , n. sp.

9'. Epipleural expansion moderately developed in dorsal view (ventral view shown in Fig. 53 ) .................................................................... P. podocrassus Jameson & Wada , n. sp.

10. Epipleuron broad at base, lacking emargination ( Fig. 59 ); occurring in Northeast India ( Fig. 65 ) ............................................................................................ P. pruinosus Arrow

10'. Epipleuron narrow at base, with or without emargination; occurring in Borneo ( Figs. 65 , 66 , 67) ................................................................................................................... 11

11. Labial palpomere 2 greatly enlarged and dorsoventrally flattened, 2–3 times wider than palpomere 1 (e.g., Fig. 22 ) .................................................................................. 12

11'. Labial palpomere 2 not greatly enlarged and flattened, at most 1.5 times wider than palpomere 1 (e.g., Fig. 27 ) .......................................................................................... 13

12. Maxillary stipes with setae curly at apex ( Fig. 30 ); epipleural expansion well­developed in dorsal view (ventral view shown in Fig. 55 ) ..................... P. malayensis Arrow

12'. Maxillary stipes with setae straight, not curly at apex; epipleural expansion moderately developed in dorsal view (ventral view shown in Fig. 53 ) ............................................. ................................................................................. P. silvanus Jameson & Wada , n. sp.

13. Body length more than 2 cm; epipleuron simple, not emarginated in ventral view ( Fig. 54 ) ................................................................................ P. kyojinus Jameson & Wada , n. sp.

13'. Body length less than 2 cm; epipleuron simple or emarginated in ventral view ( Figs. 52 , 60–61 ) ................................................................................................................... 14

14. Epipleuron emarginate in ventral view ( Fig. 61 ) ........................................................ 15

14'. Epipleuron simple in ventral view ( Fig. 52 , 60 ) ......................................................... 16

15. Epipleuron with round emargination in ventral view ( Fig. 61 ); occurring in Sabah region (Fig. 67) ...................................................................................... P. similis Arrow

15'. Epipleuron with oval emargination in ventral view; occurring in Mt. Bawang , Kalimantan region (Fig. 67) ................................ P. adelphosimilis Jameson & Wada , n. sp .

16. Epipleuron (ventral view) terminating near metacoxa ( Fig. 60 ) ..................................... ................................................................................... P. rubripennis Miyake & Yamaya

16'. Epipleuron (ventral view) extending posterior of metacoxa, terminating near sternite 3 ( Fig. 52 ) .................................................................... P. fujiokai Jameson & Wada , n. sp.

Figures

FIGURE 65. Distribution of Peltonotus species in Southeast Asia and Sundaland.

FIGURE 66. Distribution of Peltonotus species FIGURE 67. Distribution of Peltonotus specie in Borneo. in Borneo.

FIGURES 19–28. Mentum, dorsal view of: 19) P. deltamentum, 20) P. gracilipodus, 21) P. kyojinus, 22) P. malayensis, 23) P. podocrassus, 24) P. nasutus, 25) P. nethis, 26) P. pruinosus, 27) P. similis, 28) P. sisyrus.

FIGURES 14–18. Head (dorsal view) showing characters of the labrum, mandible, and clypeus. 14) P.karubei (apex of labrum deeply, narrowly emarginated; apex of mandible rounded laterally), 15) P. malayensis (apex of labrum broadly emarginate; apex of mandible rounded laterally), 16) P. morio (apex of labrum bilobed; apex of mandible quadrate laterally with broadly truncate apex; apex of clypeus without tubercle in male), 17) P. nasutus (apex of labrum bilobed; apex of mandible quadrate laterally with broadly truncate apex; apex of clypeus with weak tubercle in male), 18) P. vittatus (apex of labrum broadly emarginate; apex of mandible obliquely quadrate laterally).

FIGURES 56–60. Elytral epipleuron (gray, ventral view) with position of metacoxa of: 56) P. morio, 57) P.nasutus, 58) P. nethis, 59) P. pruinosus, 60) P.rubripennis.

FIGURES 2–13. Dorsal habitus of: 2–4) P. fujiokai (males), 5) P. fujiokai (female), 6) P. malayensis (male), 7) P. malayensis (female), 8) P. morio (male), 9) P. morio (female), 10) P. nasutus (male), 11) P.nasutus (female), 12) P. vittatus (male), 13) P. vittatus (female).

FIGURES 51–55. Elytral epipleuron (gray, ventral view) with position of metacoxa of: 51) P. brunnipennis, 52) P. fujiokai, 53) P. gracilipodus, P. podocrassus, P. silvanus, 54) P. kyojinus, 55) P. malayensis.

FIGURES 29–30. Maxilla (dorsal view) showing articulated maxillary tooth, mala with lamellate setal brush (black arrow), and form in: 29) P. deltamentum and 30) P. malayensis.

FIGURES 61–64. Elytral epipleuron (gray, ventral view) with position of metacoxa of: 61) P. similis, 62) P. sisyrus, 63) P. suehirogarus, 64a–b) P. vittatus.