Matskási István (szerk.): A Magyar Természettudományi Múzeum évkönyve 101. (Budapest 2009)

Makranczy, Gy.: The genus Thinodromus Kraatz, 1857 in West-Central Africa (Coleoptera, Staphylinidae: Oxytelinae)

The genus Thinodromus in West-Central Africa ( Coleoptera) 59 - Primary and secondary sexual features: Male: aedeagus (Fig. 70), apical edge of sternite VII with a row of 34 strong and short spines (Fig. 62), sternite VIII (Fig. 71), tergite X (Fig. 72); female: ringstructure (Fig. 73). Comparative notes - This and the following species belong in a species group with a rather unique appearance (in certain works subgenus Carpaliaceus GlLDENKOV, 2000, type species Thinodromus thoracicus GlLDENKOV, 2000). Apart from a notably more reddish colouration, light coloured and shortened terminal (10-11) antennomeres, a slightly different spermatheca, sternite VII has a very unique modification. Slightly erecting from the plane of the disc of sternite VII there is a row of stout, dark spines with unknown function. This trait distinguishes this group from any other known Thinodromus species. Bionomics - Only information is the "bank of stream" on the labels of some type specimens. Thinodromus malkinianus sp. n. (Figs 61, 63-64, 74-76) Type material - Holotype (male):"Mamfe [05°46' N, 09°17' E], Brit. Cameroons, 1.10.1949, [leg.] B. Malkin; Collection of the California Academy of Sciences, San Francisco, Calif." (CASC). Description - Measurements (in mm, n = 1 ): HW = 0.52; TW = 0.48; PW = 0.61 ; SW = 0.78; AW = 0.82; HL = 0.30 (0.50-0.54); EL = 0.16; TL = 0.06; PL = 0.43; SL = 0.68; SC = 0.62; BL = 2.90; FL = 1.44 mm. - Colour. Moderately shiny, body strongly reddish medium brown, legs and mouthparts a tad lighter, terminal two antennomeres and tip of 9th somewhat lighter. Head a little darker than other main body parts. Head strongly transverse, temples weakly developed but apparent. Antennái segments ovoid-conical with conspicuous basal ridge, strongly dilating apically, antennomeres 4-5 1.36-1.54x longer than broad, antennomeres 9-10 1.19-1.33 longer than broad (male antenna). Pronotum also transverse, posterior half of pronotal side near straight. Pronotum with two broad oblique depressions on the lateral parts ot disc, the middle longitudinal stripe rather flat with somewhat shinier very gently elevated midline in posterior third. Reflexed lateral margin not visible on pronotum (only slightly in the posterior corners), but a thin reflexed margin exists on the posterior edge. Elytra together much broader than long ( l.l4x), dilating towards apex, inner-anterior part of disc gently impressed transversally. - Punctation and microsculpture. Head punctation rather fine, puncture interspaces usually 1 /2-3/4 of puncture diameters. Pronotal punctation just a little more coarse (or more apparent because of the lack of microsculpture). Elytral punctation at least twice as coarse as the pronotal one, appears rather deep, elytra very shiny. Abdominal terga with punctation more similar to that of the pronotum, but more sparse, irregular, interspaces as large as average puncture diameters. Microsculpture apparent only on head, which makes it appear more dull. - Pubescence. Setation uni-sized, semierect, hairs rather short. Abdominal setation composed of very thin hairs of medium length and density. Annls hist.-nat. Mus. natn. hung. 101, 2009