Pocapharaptinus

Akotsen-Mensah, Clement & Philips, Keith, 2009, Description of a new genus of spider beetle (Coleoptera: Ptinidae) from South Africa, Zootaxa 2160, pp. 51-67 : 66

Key to Pocapharaptinus Species

1. Visible pronotal surface anteriomedially extending posteriorly between pronotal tufts at an angle ≤45° ( Figs 25 , 29, 31) ................................................................................................................................................................................. 2

1’. Visible pronotal surface anteriomedially extending posteriorly between pronotal tufts at an angle of ~90° or more ( Figs 26, 27, 28 , 30, 32) ................................................................................................................................................ 4

2. Visible pronotal surface anteriomedially extending posteriorly between pronotal tufts approximately parallel sided ( Fig. 25 ) ......................................................................................................................................................... P. müllerae

2’ Visible pronotal surface anteriomedially extending posteriorly between pronotal tufts with sides distinctly converging ................................................................................................................................................................................. 3

3 Stiff erect bristles laterally on pronotum clearly visible and not obscured by flocculent setae; size smaller <1.8 mm ( Figs 17, 18 ) .......................................................................................................................................... P. soutpanensis

3’ Stiff erect bristles laterally on pronotum obscured in part or wholly by flocculent setae; size larger> 2.0 mm ( Figs 21, 22 ) ......................................................................................................................................................... P. aboakyer

4. Visible pronotal surface between pronotal tufts more smoothly rounded posteriorly (Fig. 30).................... P. lachnos

4’. Visible pronotal surface between pronotal tufts distinctly angulate posteriorly........................................................... 5

5. Distributed in central Namaqualand in western South Africa; visible pronotal surface posteriorly between pronotal tufts broadly, obtusely angled ( Fig. 27 ). ............................................................................................... P. akotsenorum

5’ Distributed in southern cape region; visible pronotal surface not as above ................................................................. 6

6. Elytral setae relatively fine and elongate, wispy in appearance; white setae similar in thickness to tan or brown setae ( Figs 23, 24 ) ................................................................................................................................................. P. acanthos

6’. Elytral setae relatively course, stiff or bristle-like; white setae distinctly thicker compared to tan or brown setae (eg. Figs 15, 16 ) .................................................................................................................................................................. 7

7. Visible pronotal cuticle inferior to pronotal tufts in frontal view abruptly angulate anteriorly ( Fig 26 ). Mainly distributed east of 22° longitude; known from Swartberge Blesberg-E and Outenikwa Pass ( Figs 15, 16 ).......... P. capensis

7. Visible pronotal cuticle inferior to pronotal tufts in frontal view evenly curved anteriorly ( Fig 28 ). Mainly distributed west of 22° longitude; known from Matjisfontein Mountain, Grootberg and the Swartberg ( Figs 11, 12 )............ .................................................................................................................................................................... P. h a r r i s o n i

Figures

FIGURES 25 – 28. Pronota; 25. P. müllerae; 26. P. harrisoni; 27. P. akotsenorum; 28. P. c a p e n s i s.

FIGURES 17 – 20. Dorsal and ventral habitus views; 17 – 18. P. soutpanensis; 19 – 20. P. lachnos. Scale bar for Figs. 17, 20 = 0.5 mm and Figs. 18 – 19 = 1.0 mm

FIGURES 21 – 24. Dorsal and ventral habitus views; 21 – 22. P. aboakyer; 23 – 24. P. acanthos. Scale bar = 1.0 mm

FIGURES 13 – 16. Dorsal and ventral habitus views; 13 – 14. P. akotsenorum; 15 – 16. P. c a p e n s i s. Scale bar for Figs. 13, 15 – 16 = 1.0 mm and Fig. 14 = 0.5 mm.

FIGURES 9 – 12. Dorsal and ventral habitus views; 9 – 10. P. müllerae; 11 – 12. P. h a r r i s o n i. Scale bar for Fig. 9 = 1.0 mm and Figs. 10 – 12 = 0.5 mm.