Quedius (Microsaurus) koltzei EPPELSHEIM 1887
Creators: name: Ejean
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Quedius
Quedius koltzei

description: Quedius (Microsaurus) koltzei EPPELSHEIM, 1887(Figs 25-29)   
 Quedius koltzei EPPELSHEIM, 1887: 420 (Quedius; description); GRIDELLI, 1924: 19, 24 (Quedius; subgenus Microsaurus; characters in key; redescription); COIFFAIT, 1978: 17, 164 (Quedius; subgenus Microsaurus; characters in key; redescription); SMETANA, 1998: 115 (Quedius; subgenus Microsaurus; characters; female sexual characters; type material; distribution).   
N e w r e c o r d. CHINA: Heilongjiang Province, Lang Xian dist., Qing Yuan. N 46°47.470’ E129°03.823’ ca 600- 700 m. F/l trap leg., J. Cooter. 25-29.v.2004, 1, 1 (ASC, DRC).  
 C o m m e n t s. The specimens were taken from a flight intercept trap, but no details are known about the habitat the trap was set in. This is the first record of Q. koltzei from Heilongjiang and from mainland China.   
 The aedoeagus of Q. koltzei was illustrated by COIFFAIT (l.c.), but the sclerites of the male genital segment were not described or illustrated. To make the male sexual characters comparable to those of other Chinese Microsaurus species in my papers, I present here their description and illustrations.   
Male. First four segments of front tarsus moderately dilated, each covered with tenent setae ventrally; segment two about a wide as apex of tibia; segment four narrower than preceding segments. Sternite 8 finely and rather sparingly setose, with two long setae on each side; with moderately wide and deep medioapical emargination, without appreciable impunctate flattened area before emargination. Genital segment with tergite 10 markedly narrowed toward narrowly acuate apex, with several long setae at and near apex, otherwise only sparingly setose (Fig. 25); sternite 9 raher short and wide, with very narrow basal portion, apical portion densely setopse, with subtruncate apex (Fig. 26). Aedoeagus (Figs 27, 28) small, median lobe subparallelsided in middle portion, anteriorly narrowed into apical portion with narrowly arcuate apex; paramere markedly, widely constricted in middle portion, anteriorly shaped into obtusely triangular apical portion with obtuse, slightly emarginated apex, apex not quite reaching apex of median lobe; four fine apical setae, two similar setae at each lateral margin below apex; sensory peg setae on underside arranged into distinctive pattern of three separate groups (Fig. 28).  
Female. First four segments of front tarsus similar to those of male, but slightly less dilated, segment two slightly narrower than apex of tibia. Tergite 10 of genital segment as in Fig. 29, with medioapical portion pigmented, and with quite numerous setae of variable length at apical margin, otherwise with only a few fine scattered setae.  
 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 koltzei is at present known only from the Amur area in Russian Far East and from the adjacent Chinese province of Heilongjiang. COIFFAIT’ s (l. c.) records from "Asie centrale, Turkestan" (p.17) and "Asie centrale" (p. 165) are not supported by any details and they must be considered as doubtful.
description: Published as part of Ejean, 2015, Contributions to the knowledge of the Quediina (Coleoptera: Staphylinidae: Staphylinini) of China. Part 56. Genus Quedius STEPHENS, 1829 Subgenus Microsaurus DEJEAN, 1833. Section 23, pp. 1843-1854 in Linzer biologische Beiträge 47 (2) on pages 1850-1851, DOI: 10.5281/zenodo.5285994