Geostiba (Sipalotricha) atrioculata, Assing, 2007

Assing, V., 2007, Four new species and additional records of Geostiba from Turkey and Crete, and a new synonymy (Coleoptera: Staphylinidae: Aleocharinae), Linzer biologische Beiträge 39 (2), pp. 777-790 : 782-785

publication ID	https://doi.org/ 10.5281/zenodo.10114370
publication LSID	lsid:zoobank.org:pub:62C07F6C-F2DE-4CCD-AAD9-8CE1449843E9
persistent identifier	https://treatment.plazi.org/id/03A48E76-DC68-FFE1-F562-36EBFCA3FEF9
treatment provided by	Valdenar
scientific name	Geostiba (Sipalotricha) atrioculata
status	sp. nov.

Treatment

Geostiba (Sipalotricha) atrioculata View in CoL sp.nov. ( Figs 10-23 View Figs 10-20 View Fig View Figs 22-34 , Map 1 View Map 1 )

Holotype: TR [8] Antalya, 40 km E Alanya , 1530-1600 m, pine litter and grass sifted, 36°29'N, 32°23'E, 23.XII.2006, V. Assing GoogleMaps / Holotypus Geostiba atrioculata sp.n. det. V. Assing 2006 (cAss). Paratypes: 3, 6: same data as holotype (cAss, OÖLL).

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D e s c r i p t i o n: 2.0- 2.7 mm. Habitus as in Fig. 10 View Figs 10-20 . Coloration: body uniformly yellowish, except for the blackish eye rudiments.

Head 1.05-1.10 times as wide as long; puncturation extremely fine, barely noticeable; surface with shallow microreticulation and with some shine ( Fig. 11 View Figs 10-20 ). Eyes strongly reduced ( Fig. 12 View Figs 10-20 ), slightly smaller than antennomere III in cross-section, with pigmentation, but without ommatidia. Antennae distinctly incrassate apically; antennomeres V-X 2.0-2.5 times as wide as long.

Pronotum approximately 1.1 times as wide as head and 1.05-1.10 times as wide as long; puncturation extremely fine, barely noticeable; microreticulation somewhat more distinct than that of head ( Fig. 11 View Figs 10-20 ).

Elytra approximately as wide as pronotum or slightly wider, and about 0.55 times as long as pronotum ( Fig. 11 View Figs 10-20 ); puncturation very fine, but slightly more distinct than that of head and pronotum; microreticulation shallow; sexual dimorphism weakly pronounced.

Abdomen 1.05-1.10 times as wide as elytra ( Fig. 10 View Figs 10-20 ); puncturation very fine and sparse; microreticulation present everywhere, but shallow; posterior margin of tergite VII without palisade fringe.

: elytra in postero-lateral region usually with shallow, ill-defined, somewhat diagonal impression; tergite VIII weakly transverse, posterior margin weakly convex, in the middle truncate ( Fig. 13 View Figs 10-20 ); sternite VIII weakly transverse and with broadly convex posterior margin ( Fig. 14 View Figs 10-20 ); median lobe of aedeagus as in Figs 15-17 View Figs 10-20 ; apical lobe of paramere moderately slender, with a long median seta, two moderately short setae in submedian and apical position, and a minute apical seta ( Fig. 18 View Figs 10-20 ).

: elytra unmodified; tergite VIII as in, but more transverse ( Fig. 19 View Figs 10-20 ); sternite VIII distinctly transverse, posterior margin broadly convex and without central concavity ( Fig. 20 View Figs 10-20 ); spermatheca as in Figs 22-23. View Figs 22-34

E t y m o l o g y: The name refers to the eyes, which, in contrast to those of most other Geostiba species with minute eye rudiments without ommatidia, are of conspicuously blackish coloration.

C o m p a r a t i v e n o t e s: From other Eastern Mediterranean congeners with similarly reduced eyes (minute size, ommatidia absent), G. atrioculata is distinguished by the blackish coloration of the eyes. In order to account for the new species, the key in ASSING (2005a) is modified as follows:

3 Eyes reduced to minute rudiments without ommatidia .....................................................3a - Eyes sometimes small, but always with ommatidia..........................................................19 3a Eyes with pigmentation, blackish. Aedeagus and spermatheca as in Figs 15-17 View Figs 10-20 , 22-23 View Figs 22-34 .

Southern Anatolia: Antalya ( Map 1 View Map 1 ) .................................................. G. atrioculata nov.sp. - Eyes without pigmentation..................................................................................................4

D i s t r i b u t i o n a n d b i o n o m i c s: The type locality is situated in the Taurus range, some 40 km to the east of Alanya, eastern Antalya province, southern Anatolia ( Map 1 View Map 1 ). The type specimens were collected at a pass below old pine trees by sifting litter and grass roots at an altitude of approximately 1600 m.

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