Quedius (Microsaurus) amurensis, Smetana & Shavrin, 2018
|
publication ID |
https://doi.org/ 10.5281/zenodo.4004389 |
|
DOI |
https://doi.org/10.5281/zenodo.4329293 |
|
persistent identifier |
https://treatment.plazi.org/id/8948DC62-5D6E-FFAC-FF36-FF26FF3FA01E |
|
treatment provided by |
Valdenar |
|
scientific name |
Quedius (Microsaurus) amurensis |
| status |
nov.sp. |
Quedius (Microsaurus) amurensis View in CoL SMETANA nov.sp. ( Figs 7-11 View Figs 1-11 , 23 View Figs 22-23 )
T y p e l o c a l i t y. RUSSIA: Amurskaya obl., Skovorodinskiy r-n., lev. ber. r. Urka, ok 8 km S p. Erofei Pavlovich, N 54˚ 02’24.84’’ E 121˚ 58’ 30.69’’, h= 552 m.
T y p e m a t e r i a l. Holotype (♂), RUSSIA: "Amurskaya obl., Skovorodinskiy r-n., lev. ber. r. Urka, ok 8 km S p. Erofei Pavlovich, 54˚ 02’24.84’’ N ♀ 121˚ 58’ 30.69’’E, h= 552 m, 28- 29.08.2014, A.V. Shavrin, I. V. Enushchenko ". [Amur Area, Skorovodinskiy District, left side of Urka river , about 8 km N Yerofey Pavlovitch, 54˚ 02’24.84 N / 121˚ 58’ 30.69’’E, h= 552 m, 28- 29.08.2014, A.V. Shavrin, I. V. Enushchenko]. Deposited in ZMM.
D i a g n o s i s. Species similar in external characters to both Q. simulans SHARP, 1874 and Q. klapperichi SMETANA, 1996, but different mainly by the aedoeagus with paramere wide, covering the entire median lobe.
D e s c r i p t i o n. In all external characters similar to Q. klapperichi , but different as follows: size smaller than average specimens of Q. klapperichi , head shorter and wider, distinctly wider than long (ratio 1.20, corresponding ratio for Q. klapperichi 1.12); microsculpture distinctly finer and more superficial; antenna similar to that of Q. klapperichi , but distinctly more slender and shorter, with outer segments 7-10 distinctly transverse. Pronotum shorter and wider, more markedly wider than long (ratio 1.19, corresponding ratio for Q. klapperichi 1.10); left dorsal row with only two, right one with three punctures; scutellum with only a few punctures; elytra markedly shorter than those of Q. klapperichi , at suture about as long as, at sides longer than pronotum at midline (ratio 1.15); punctation and setation less dense than in Q. klapperichi ; punctation of abdominal tergites similar to that of Q. klapperichi , but in general somewhat less dense.
Male. First four segments of front tarsus moderately dilated, sub-bilobed, each densely covered with tenent setae ventrally; segment 2 about as wide as apex of tibia; segment 4 narrower than preceding segments. Sternite 7 with slight medioapical sinuation; sternite 8 with four macrosetae at right side and three on left side, apical margin with wide, moderately deep, obtusely triangular medioapical emargination, a long, narrow area before emargination, reaching basal third of sternite, devoid of pubescence ( Fig. 7 View Figs 1-11 ); tergite 10 evenly narrowed toward arcuate apex, with a few long setae at apex and some shorter setae in front of them ( Fig. 8 View Figs 1-11 ); sternite 9 not appreciably different from that of Q. klapperichi ( Fig. 9 View Figs 1-11 ). Aedoeagus ( Figs 10, 11 View Figs 1-11 ) markedly different from those of both Q. simulans and Q. klapperichi ; median lobe narrow, subparallelsided, anteriorly narrowed into narrow apical part with acute apex; paramere large, wide, entirely covering median lobe, anteriorly narrowed into subacute apex surpasing distinctly apex of median lobe; four apical setae, medial pair considerably longer than lateral pair and two short setae at each lateral margin close to apex; underside with numerous sensory peg setae, forming irregular long row along each lateral margin of apical portion of paramere.
Female unknown.
Length 6.8 mm.
E t y m o l o g y. The specific epithet is the Latinized adjective derived from the name of the river Amur and by adding the suffix - ensis, denoting the place of origin.
G e o g r a p h i c a l d i s t r i b u t i o n. Quedius amurensis is at present known only from the type locality in Amur area.
B i o n o m i c s. The specimen was sifted from litter and mosses at swampy site along a forest road with Ledum palustre, Vaccinium uliginosum, Calamagrostis purpurea, C. obtusata, Carex spp. and Sphagnum spp. in a mixed forest with Larix gmelinii, Betula fruticosa, B. platyphylla and Salix spp. ( Fig. 23 View Figs 22-23 ).
C o m m e n t s. The holotype bears an additional, small setiferous puncture anteriomediad of right posterior frontal puncture and it is missing the last segment of right front tarsus.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.