Corresponding author: Hong-Liang Shi (
Academic editor: Borislav Guéorguiev
The Chinese species of subgenus
Yin W-Q, Shi H-L, Liang H-B (2021) Revision of the Chinese species of subgenus Koreonialoe (Coleoptera: Carabidae:
The subgenus
The subgenus
Prior to the present study, there was a total of 16 species in
The present study describes two new species from Northeast China, newly records
The present study is mainly based on the examination of specimens from Northeast China. All specimens examined, including types of new species, are deposited in the collections of the
The body length (
The terminology of the endophallic lobes of male genitalia follows Sasakawa et al. (2005a,
Medium to large-sized
Body robust, medium to large size, body length 12–25 mm, elongate and macrocephalic. Dorsally black, dark brown or reddish brown; pronotum finely punctate, more or less opaque; elytra entirely opaque, without metallic luster. Palpi and tarsi brown, other parts of legs similar color as elytra. Head large and thick; eyes small and convex, tempora strongly swollen, generally a little longer than length of eyes; frons with shallow and sparse punctures throughout; frontal grooves shallow and wide, reaching midpoint of eyes. First antennomere shorter than combined length of following two segments. Mandibles long, outer surface nearly straight, apex hooked; apical margin of labrum and clypeus deeply emarginate; terminal segment of labial palpus fusiform, a little dilated in males; mentum tooth bifid, mentum with a pair of longitudinal depressions, submentum with two setae on each side. Pronotum strongly cordate, widest near anterior third, one-sixth to one-fifth wider than length. Surface more or less opaque, with fine punctures, sub-anterior transversal sulci well defined, strongly curved. Lateral margins slightly arched from anterior angles to the middle, strongly sinuate and then nearly straight before posterior angles; posterior angles nearly rectangular; posterior margin strongly emarginate at middle. Mid-lateral setae present near anterior fifth of lateral margins; lateral expansions narrow, equally wide at anterior and posterior portions. Basal foveae with inner and outer grooves faintly defined and partly fused, forming deep depression between them; outer groove slightly shorter than inner one (definition of pronotal inner and outer grooved see
A total of 18 species distributed along the Korean Peninsula and adjacent areas, including the eastern part of Jilin and Liaoning (China), Primorskiy Kray (Russia), Tsushima Island (Japan).
Different species of the subgenus
The endophallus of male genitalia is also important for inferring phylogeny (
To better interpret the infra-subgeneric taxonomy of
The determination of female specimens of
1 | Endophallus short and straight, gonopore opened apically on aedeagus (Sasakawa 2005: Fig. |
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– | Endophallus elongate and directed ventrally, gonopore opened basally to aedeagus (Figs |
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2 | Median lobe of aedeagus with ventral margin more or less tumid (Figs |
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– | Median lobe of aedeagus with ventral margin not tumid (Figs |
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3 | Median lobe of aedeagus with a large conic tubercle near middle of ventral margin (Fig. |
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– | Median lobe of aedeagus slightly tumid before middle of ventral margin (Figs |
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4 | Endophallus with four lobes, left apical lobe divided into two sub-lobes (Fig. |
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– | Endophallus with three lobes, left apical lobe not divided (Figs |
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5 | Dorsally nearly black; endophallus with three lobes, right apical lobe present; left preapical lobe with apex conic ( |
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– | Dorsally dark reddish brown; endophallus with two lobes, right apical lobe absent; left preapical lobe with apex spherical (Figs |
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6 | Endophallus directed ventrally; left apical lobe a little smaller than left preapical lobe; |
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– | Endophallus directed dorsal-ventrally; left apical lobe strongly compressed, much smaller than left preapical lobe (Fig. |
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China, Jilin province: Baishan city, Changbai county, Changsongling (
Small sized species in this subgenus; body dark reddish brown; fifth tarsomere without seta on ventral side; median lobe of aedeagus stout, ventral surface without tubercle, apical portion simple, not distinctly deflected to venter or left; endophallus strongly directed ventrally, gonopore opened to the ventral-base of aedeagus; two endophallic lobes present, both spherical;
From the external features,
Habitus of
Male genitalia of
Male genitalia of
This species is relatively widespread along the Changbai mountain range of Jilin province, the border between China and North Korea. (Fig.
The name of this new species is derived from
China, Liaoning province: Anshan city, Xiuyan county, Laopingding (
Dorsal side nearly black; fifth tarsomere without ventral seta. Median lobe of aedeagus stout, ventral margin slightly tumid forming an inconspicuous tubercle. Endophallus long and thick, directed basal-ventrally; four lobes present:
This new species is peculiar among all the Chinese species of subgenus
From the external features,
This species was only found in the type locality, Anshan, Liaoning Province, Laopingding mountain. (Fig.
The scientific name of the new species is composed of two Greek root: “
(8 males and 16 females): 4 males, “China, Liaoning, Dandong city, Saima town; Mixed forest,
Dorsally dark reddish brown; fifth tarsomere without ventral seta. Median lobe of aedeagus stout, ventral surface slightly tumid forming an inconspicuous tubercle. Endophallus elongate, directed basal-ventrally, gonopore opened to the ventral-basal direction of aedeagus; three lobes present:
From the sclerotized features of male genitalia,
From the external features,
Widely distributed in the eastern part of Liaoning province, along the Qianshan mountain range. (Fig.
(6 males and 1 female): 1 male, “China Jilin province, Baishan City, Changbai County, E of Changsongling tunnel; Mixed forest,
Dorsal surface nearly black; fifth tarsomere without ventral seta. Median lobe of aedeagus stout, ventral margin strongly tumid forming a conspicuous cuneate tubercle anterior to middle. Endophallus directed basal-ventrally, gonopore opened to the ventral-basal direction of aedeagus; three lobes present:
From the external features,
Endophallus of
Female genitalia of
This species is widespread from the southeastern part of Jilin province to South Korea, along the eastern mountains in the Korean Peninsula. (Fig.
Confirmed distribution of
We wish to thank Mr. Yizhou Liu (BJFU), Mr. Pingzhou Zhu (