A revision of Geostiba of the West Palaearctic region. XXV. New species from Georgia and Greece, and additional records (Coleoptera: Staphylinidae: Aleocharinae)
Assing, Volker
Linzer biologische Beiträge
2017
2017-12-11
49
2
1093
1106
3FSX5
Assing, 2017
Assing
2017
[163,578,201,223]
Insecta
Staphylinidae
Geostiba
Animalia
Coleoptera
6
1099
Arthropoda
species
svanetica
sp. nov.
Tropogastrosipalia
E t y m o l o g y: The specific epithet is an adjective derived from the name of the region where the typelocality is situated. D e s c r i p t i o n: Body length 2.4 mm; length of forebody 0.95 mm. Coloration: head blackish-brown; pronotum reddish-brown; elytra brownish-yellow; abdomen blackish, with tergite II and the apex (segments VIII-X, posterior margin of tergite VII) paler; legs yellow; antennae reddish, with the basal two antennomeres pale-reddish. Microsculpture on head and pronotum very shallow, absent on elytra ( Fig. 7). Posterior margin of abdominal tergite VII without palisade fringe. 3: pronotum ( Fig. 7) not distinctly modified, weakly transverse, nearly 1.1 times as broad as long and 1.2 times as broad as head, posterior margin broadly and smoothly convex; elytra ( Fig. 7) with short sutural carinae (extending along anterior half of suture) immediately behind scutellum and with fine non-granulose punctation, disc very shallowly impressed; abdominal tergites III and IV ( Fig. 8) each with a median tubercle; tergite VII ( Figs 9-10) with a short, narrow (antero-dorsal view), and erect median spine at posterior margin; median lobe of aedeagus ( Fig. 17) 0.22 mmlong and with straight and very slender cristal process. ♀: unknown. C o m p a r a t i v e n o t e s: This species is easily distinguished from G. tiflisensis, the only other Tropogastrosipaliaspecies previously recorded from the Greater Caucasus, by much less pronounced microsculpture on the head and the pronotum, a darker head (reddish in G. tiflisensis), and the male sexual characters: the practically unmodified, transverse male pronotum, male elytra with sutural carinae (absent in G. tiflisensis), non-granulose punctation (granulose in G. tiflisensis), and very shallowly impressed disc (distinctly impressed in G. tiflisensis), modified male tergites III and IV (unmodified in G. tiflisensis), and a much narrower cristal process of the aedeagus. For characters distinguishing G. svaneticafrom G. gibberiventrissee the comparative notes in the following section. The median lobe of the aedeagus of G. tiflisensisis illustrated in Fig. 16. D i s t r i b u t i o n: The type locality is situated near the Zagaro Pass in the east of Svaneti region, North Georgia( Map 1). The holotypewas found under a stone in a subalpine grassland at an altitude of 2400 m(MEYBOHM pers. comm.).
2017-06-28
T, V
Georgia
2400
Svaneti
42.911114
Zagaro Pass
6
1099
2
holotype