Cretotyphlus idanus ASSING, 2019

Assing, Volker, Brachat, Volker & Meybohm, Heinrich, 2019, Monograph of the Staphylinidae of Crete (Greece). Part II. Descriptions of new species (Insecta: Coleoptera), Beiträge Zur Entomologie = Contributions to Entomology 69 (2), pp. 239-289 : 264

Cretotyphlus idanus ASSING spec. nov.

urn:lsid:zoobank.org:act:993DEFB4-903E-4367-96DD-6F4D8F0DE42F

( Figs 81–85 , 175 )

Type material: Holotype ♂: “GR – Crete [15], Psiloritis NE Livadia , 35°18'56"N, 24°49'07"E, 440 m, soil washing near stream, 26.XII.2018, V. Assing / Holotypus ♂ Cretotyphlus idanus sp. n. det. V. Assing 2019” (cAss) . Paratypes: 2 ♂♂: same data as holotype (cAss).

Etymology: The specific epithet is an adjective derived from Ida, one of the names of the mountain range where the type locality is situated.

Description: Length of forebody approximately 0.6 mm. Habitus as in Fig. 81 . Colour of body dark-yellowish.

Head with sparse punctation and with very shallow microreticulation. Pronotum approximately as long as broad and as broad as head; dorsal surface very smooth, with extremely fine, barely visible punctation and with shallow microreticulation.

Elytra with shallow traces of microsculpture and with sparse, extremely fine punctation barely visible even at a magnification of 150 x.

Abdomen with shallow microsculpture composed of large meshes; punctation extremely fine and moderately dense; pubescence long, pale, depressed, and moderately dense.

♂: sternites V–VIII each with an extensive median impression ( Fig. 82 ); sternite VIII ( Fig. 85 ) transverse and symmetric, with a pair of pronounced clusters of strongly modified, short and stout setae in median impression, posterior margin with nearly semicircular median excision; aedeagus 0.21 mm long and shaped as in Figs 83–84 . ♀: unknown.

Comparative notes: Cretotyphlus idanus is distinguished from C. hamatus by a slightly more robust body, extremely fine punctation of the pronotum, as well as by the completely different shape and chaetotaxy of the male sternite VIII and by the differently shaped and much smaller aedeagus.

Distribution and natural history: The type locality is situated near Livadia in the north slopes of the Psiloritis range, Central Crete. The specimens were found by washing soil near a stream in a stream valley with Platanus orientalis , Quercus sp. , and undergrowth at an altitude of 440 m ( Fig. 175 ). Sampling the locality a year earlier had not produced any specimens.

Figures

Figs 71–84: Kenotyphlus virgatus (71–73), Cretotyphlus hamatus (74–80), and C. idanus (81–84): male sternite VIII (71, 77); aedeagus in lateral and in ventral, or in latero-ventral view (72–73, 78–79, 83–84); habitus (74, 81); forebody in dorsal view (75); forebodyin ventral view (76); femalegenital segment (80);male meso-and metathorax and abdomen in ventralview (82). Scale bars: 74, 81–82: 0.5 mm; 71–73, 75–80, 83–84: 0.1 mm.

Figs 85–99: Cretotyphlus idanus (85), C. chanianus (86–91), Pseudobium creticum (92–96), and Gabrius candicus (97–99): male sternite VIII (85, 88, 94); habitus (86, 92, 97); forebody in ventral view (87); aedeagus in lateral and in ventral view (89–90, 95–96, 98–99); female genital segments (91); forebody (93). Scale bars: 92–93, 97: 1.0 mm; 86: 0.5 mm; 98–99: 0.2 mm; 85, 87–91, 94–96: 0.1 mm.

Figs 174–175: Type localities of Cretotyphlus chanianus and Allotyphlus foedatus in Mavros stream valley, West Crete (above), and