Euconnus (Tetramelus) karabakhus MEYBOHM, 2019

Assing, Volker & Schülke, Michael, 2019, The Staphylinidae of Armenia and Nagorno-Karabakh (Coleoptera), Beiträge Zur Entomologie = Contributions to Entomology 69 (1), pp. 91-173 : 161

Euconnus (Tetramelus) karabakhus MEYBOHM spec. nov.

urn:lsid:zoobank.org:act:A60B66A1-20EB-4341-9950-B6485B1A3853

( Fig. 59 )

Type material: Holotype: “NAGORNO-KARABAKH – [10], NW Stepanakert, 40°01'34"N, 46°28'33"E, 1210 m, mixed forest, 3.VII.2018, V. Assing / Euc. (Tetramelus) karabakhus m. Meybohm 2018 det. / Holotypus ” (cMey) . Paratypes :: same data as holotype (cMey); 1 : same data, but leg. Schülke (cSch); 1: “NAGORNO-KARA- BAKH – [7], NW Stepanakert, 39°54'22"N, 46°39'12"E, 870 m, mixed forest, 2.VII.2018, V. Assing ” (cMey); 1 : same data, but leg. Schülke (cSch); 1: “NAGORNO- KARABAKH [AR 18-11], NW Stepanakert, W Vank, 40°01'44"N, 46°30'15"E, 1080 m, mixed forest, litter sifted, 3.VII.2018, leg. M. Schülke ” (cSch) .

Etymology: The specific epithet is an adjective derived from Nagorno-Karabakh.

Description: External characters as in E. tavushus , except as follows:

Body length 1.54 mm () and 1.54–1.61 mm (). Body unicoloured dark reddish-brown.

Head approximately 0.26 mm broad, slightly more than 1.1 times as long as broad. Eyes slightly projecting from lateral contours of the head.

Antenna 0.79 mm long on average, about 0.85 times as long as elytra, club about 0.85 times as long as combined length of antennomeres II–VII; III, IV and VI of equal length, V longer than IV, VII 1.7 times as long as broad.

Pronotum 1.2 times as broad as head, slightly longer than broad; base with four pits, internal pits distinctly delimited, separated from each other by approximately three times their diameter, connected by a very shallow transverse impression.

Elytra 0.60 mm (male) and 0.65 mm (female) broad on average, in lateral and in dorsal view strongly convex.

Aedeagus shaped as in Fig. 59 .

Comparative notes: The three species described above belong to the Euconnus (Tetramelus) reitteri group ( VÍT & HLAVÁČ 1998). They differ in body length and the structure of the antennae, the shape of the eyes, the basal pits of the pronotum, and the shape of the aedeagus. The aedeagi of E. tavushus and E. karabakhus are very similar, though broader in E. tavushus than in E. karabakhus , but these species differ significantly in external features.

Distribution and natural history: The ten previously described species of the E. reitteri group have more or less restricted distributions in Northeast Turkey and in Georgia. The distributions of the three species described above extend the general distribution of this group to the east, south, and southeast. The specimens were sifted from leaf litter at altitudes of 870–1790 m.

Figures

Figs 57–65:Euconnus longilaminatus(57), E. tavushus (58), E. karabakhus (59), Neuraphes gomarantsus (60–62), andN. syunikus