Euconnus (Tetramelus) longilaminatus 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 : 160

Euconnus (Tetramelus) longilaminatus MEYBOHM spec. nov.

urn:lsid:zoobank.org:act:96692EB3-A82F-4ADB-A278-EC1B64040C82

( Fig.57 )

Type material: Holotype: “ ARMENIA [30] – pass road E Ijevan, 1790 m, 40°52'00"N, 45°13'19"E, forest, litter & roots sift., 6.VII.2017, V. Assing / Euc. (Tetramelus) longilaminatus m. Meybohm 2018 det. / Holotypus ” (cMey) . Paratypes: 5, 5: same data as holotype (cMey).

Etymology: The specific epithet (adjective) alludes to the long ventral process of the aedeagus.

Description: Body length sexually dimorphic, in 1.38– 1.45 mm and in 1.48–1.53 mm. Coloration uniformly bright reddish-brown, appendages paler. Pubescence (pronotum excluded) rather sparse, directed posteriad, sub-erect, and bent towards body. Punctation of head and pronotum very fine, that of elytra fine.

Head approximately 0.26 mm broad, broadest across the minute eyes, weakly oblong, slightly more than 1.1 times as long as broad, lateral contours smoothly curved from the eyes to the posterior constriction, postero-medially weakly bulging and projecting beyond posterior constriction. Eyes rudimentary, with only one ommatidium, without pigmentation, not projecting from lateral contours of head. Antenna with distinct four-jointed club, weakly sexually dimorphic: in antenna approximately 0.76 mm long and 0.9 times as long as elytra, length of club approximately as long as combined length of antennomeres II–VII; antenna approximately 0.73 mm long and 0.8 times as long as elytra, length of club distinctly shorter than (0.94 x) combined length of antennomeres II–VII; antennomeres II twice as long as broad, little shorter than combined length of III and IV, III–VI elongate, III and IV of equal length, V longer and VI shorter than IV, VII intermediate between VI and VIII, 1.3 times as long as broad, from VIII to XI gradually broader and XI slightly shorter than the combined length of IX and X.

Pronotum 1.1–1.2 times as broad as head and as long as broad or slightly longer, broadest slightly anterior to middle, more strongly tapering anteriad than posteriad; base with four pits, internal pits shallowly delimited, separated from each other by approximately three times their diameter, connected by a shallow transverse impression.

Elytra on average of 0.55 mm () or 0.60 mm () broad, in both sexes about 1.5 times as long as broad, broadest behind anterior two-fifths of elytral length, moderately convex in lateral and in dorsal view; each elytron with two clearly separated basal pits, the external one larger and laterally delimited by a short elevation, the internal one delimited by an oblique edge directed towards suture; setae approximately as long as antennomere II. Hind wings completely reduced. Femora and tibia without sexual dimorphism. Femora dilated in distal halves, profemora more strongly dilated than meso- and metafemora. Tibiae straight. Metaventrite medially flat () or weakly convex in cross-section ().

Aedeagus shaped as in Fig. 57 .

Comparative notes: See section on E. karabakhus .

Distribution and natural history: See section on

E. karabakhus .

Figures

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