Pinophilinus, EICHELBAUM, 1908

Assing, V., Schülke, M., M. R & A. S, 2013, On the Staphylinidae of Saudi Arabia, with descriptions of two new species (Insecta: Coleoptera), Linzer biologische Beiträge 45 (1), pp. 141-154 : 149

Key to the Arabian species of Pinophilinus

1 Large species; body length approximately 7.5 mm; length of forebody> 3.0 mm. Antenna approximately 2.1 mm long and slender; antennomere III approximately 3 times as long as broad; IX distinctly oblong. Coloration of body pale-reddish. Body, particularly abdomen, with coarse and dense punctation. Sinai Peninsula ( Map 1 ).............. ......................................................................................................... P. schatzmayri (KOCH)

- Distinctly smaller and more slender species; body length <7.0 mm; length of forebody <2.5 mm. Antenna <1.5 mm long and less slender; antennomere III at most twice as long as broad; IX at least as broad as long..........................................................................2

2 Body dark-brown. Eyes small, shorter than postocular region in dorsal view (ASSING 2012: figure 11). Antenna shorter (1.2 mm) and less slender (ASSING 2012: figure 10); antennomere III approximately 1.5 times as long as broad; IV-V indistinctly oblong. Pronotum somewhat flattened and distinctly narrowed posteriorly (ASSING 2012: figure 11). Head and pronotum with moderately dense punctation; interstices on average broader than diameter of punctures. ♂: sternite VIII with very small posterior excision (ASSING 2012: figure 13); aedeagus symmetric and apically very acute in ventral view; internal sac without large sclerotized spine (ASSING 2012: figures 14-15). Socotra Island ( Yemen) ( Map 1 )..................................................................... P. socotranus ASSING

- Body pale-reddish. Eyes rather large, distinctly longer than postocular region in dorsal view. Antennae longer (1.4 mm) and more slender ( Fig. 1 ); antennomere III approximately twice as long as broad; IV-V approximately 1.5 times as long as broad. Pronotum more convex in cross-section and less strongly narrowed posteriorly ( Fig. 2 ). Head and pronotum with dense punctation; interstices on average narrower than diameter of punctures ( Fig. 2 ). ♂: sternite VIII with larger and deeper posterior excision ( Fig. 4 ); aedeagus with slightly asymmetric and much less acute apex in ventral view; internal sac with large sclerotized spine ( Fig. 5 ). Southwestern Saudi Arabia ( Map 1 )....................................................................................... P. spinosus nov.sp.

Figures

Map 1: Distribution of Arabian Pinophilinus species: P. schatzmayri (KOCH) (triangle); P. spinosus nov.sp. (circles); P. socotranus ASSING (diamond).

Figs 1-8: Pinophilinus spinosus nov.sp. (1-5) and P. schatzmayri (KOCH) (6-8): (1, 6) habitus; (2, 7) forebody; (3, 8) abdomen; (4) male sternite VIII; (5) aedeagus in ventral view. Scale bars: 1-3, 6-8: 1.0 mm; 4-5: 0.2 mm.