Corresponding author: Haifeng Chen (
Academic editor: Adam Brunke
A new species of
Li X, Cai Y, Chen H (2021) The third species of the genus
The genus
Based on the original description by
In 2016, some rove beetle specimens were collected from the border of Yunnan, China, and Myanmar. After close examination, some of these were discovered to belong to a new species of
The dried specimens were softened in hot water at 60 °C for about 8 hours for dissection of the abdominal terminalia. The male genital was soaked in 10% KOH solution (30 °C) for about 20–40 minutes (depending on the degree of sclerotization). The surrounding soft tissues were immediately removed, and the dissected parts were preserved in glycerin in plastic microvials with stoppers for the subsequent observation and photography. Two specimens were dissected in this study.
Observation, dissection, and measurements were done under a Zeiss SteREO Discovery V20 stereomicroscope. Photos of the habitus, sternites, and genitalia were taken with Zeiss AxioCam MRc 5 camera attached to a Zeiss Axio Zoom V16 stereo zoom microscope. Photographs were synthesized and stacked with Zen 2012 (Blue version) and Helicon Focus imaging software. Inkscape v. 0.91 was used to make the line drawings.
All specimens listed in the present study were deposited in the Institute of Zoology, Chinese Academy of Sciences (
The following abbreviations are used in the descriptions:
1 | Body black including antennae, pronotum and abdomen |
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– | Body with pronotum and at least first four abdominal segments reddish brown |
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2 | Interior armature complex, with more sclerites; apex of dorsal plate in aedeagus curved to the right in ventral (parameral) view (Figs |
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– | Interior armature with fewer sclerites; apex of dorsal plate in aedeagus curved to the left in ventral (parameral) view ( |
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Body glossy with typical “
Head wider than long (average
Antennae filiform and densely pubescent, starting from antennomere 9. Ventral portion of neck with a reversed V-shaped protrusions.
Pronotum slightly longer than wide (average
Elytra trapezoidal-sided, longer than wide (average
Tergites III–VI of abdomen with setiferous punctures small and sparse; basal area of each tergite without distinct punctate row. Sternites with punctation similar to that on tergites.
Aedeagus (Figs
The new species
The species is known only from westernmost Yunnan Province, China, at an altitude of 2100 m. The specimens were collected in June as they were moving under fresh grass along the sides of a river.
The specific epithet is derived from the type locality, Kongshuhe, a mountain village in westernmost Yunnan Province, China, near the border between Myanmar and China.
We express our gratitude to the editor, Dr. Adam J. Brunke (Canadian National Collection of Insects, Arachnids and Nematodes, Agriculture and Agri-Food Canada, Ontario, Canada), Dr. Volker Assing (Hannover, Germany) for their sincere comments on this manuscript and Dr. Chengbin Wang (王成斌, Mianyang Normal University, Mianyang, China) for assistance with collecting the specimens in 2016. This study was financially supported by the Fundamental Research Funds for the Universities in Hebei Province (C2019408016, ZD2020123, JYT202001, A202002007) and the National Natural Science Foundation of China (NSFC-31501883, NSFC-31760629).