Guizhaphaenopsodes solidior Tian & X. Huang 2021, n. sp.
Creators: name: Tian, Mingyi
name: Huang, Xinglong
name: Li, Chenliang
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Carabidae
Guizhaphaenopsodes
Guizhaphaenopsodes solidior

description: Guizhaphaenopsodes solidior Tian & X. Huang, n. sp.
(Figs. 1, 5–7)
Type material. Holotype male, cave Tangle Dong, suburb of Jishou, Xiangxi Tujia & Miao Autonomous Prefecture, west Hunan Province, 28°18’21”N / 109°39’15”E, 270 m in altitude, 2018-I-15, leg. Xinglong Huang, in SCAU.
Diagnosis. A medium-sized semi-aphaenopsian species, somewhat looking like a Guizhaphaenops species but the body more robust, partly pigmented, with strong antennae extending to about apical 1/5 of elytra.
Description. Length: 6.5 mm, width: 2.2 mm. Habitus as in Fig. 5.
Head, pronotum, 1 st– 8 th antennomeres, femora and tibiae, undersides of head and thoraxes dark brown, elytra reddish-brown, palps, 9 th– 11 th antennomeres and tarsi yellow. Body smooth and glabrous, but elytra with a minute and sparse pubescence. Microsculpture: isodiametric meshes on vertex, striate on frons, pronotum and elytra. Fore body (head plus pronotum including mandibles) distinctly shorter than elytra.
Head (Figs. 5, 6A) moderately elongate, longer than wide, HLm/HW = 1.9, HLl/HW = 1.6; nearly parallelsided, widest at about middle of head excluding mandibles; front and vertex convex; frontal furrows well-defined and complete, strongly divergent posteriorly; the posterior supraorbital pores located at ending point of frontal furrows; clypeus quadrisetose, labrum transverse, almost straight in the front margin, 6-setose; mandibles developed and moderately curved at apices; tooth short and broad, blunt at tip, about half as long as the lateral lobes; ligula adnated with paraglossae, 12-setose; palps long and slender, the 2 nd labial palpomere about 1.2 times as long as 3 rd; 3 rd maxillary palpomere 1.25 times as long as 4 th; suborbital pores close to neck constriction; antennae thick though filiform, pubescent from 2 nd– 11 th antennomeres, antennomere 3 the longest, almost twice as long as scape; relative length of each antennomere as follows: 1 st (1.0), 2 nd (1.0), 3 rd (1.9), 4 th (1.5), 5 th (1. 3), 6 th (1.2), 7 th (1.1), 8 th (1.0), 9 th (1.0), 10 th (0.9) and 11 th (1. 2).
Pronotum (Fig. 5) wider than head, PW/HW = 1.3, as long as head excluding mandibles, much longer than wide, PL/PW = 1.1; lateral margins gently expanded, narrowly and evenly bordered throughout, strongly reflexed at base, widest at about middle; base and front unbordered, almost straight, the former slightly wider than the latter; both front and hind angles obtuse, though more or less rectangular; anterior latero-marginal pores located apical 2/11 of pronotum; frontal transverse impression faint, whereas basal one well-defined, basal foveae large but shallow; middle line well-marked; disc moderately convex. Scutellum small.
Elytra (Fig. 5, 6B) much longer than wide, EL/EW = 1.6, wider than pronotum, EW/PW = 1.9; unbordered at base; striae shallowly depressed, intervals slightly convex; basal pores distant from scutellum, anterior and posterior dorsal pores on the 3 rd striae at about 1/4 and 2/3 of elytra from base respectively; each group of marginal umbilicate series well separated from the other, apical group composed of 4 pores.
Legs moderately long and densely pubescent; fore and middle tibiae longitudinally grooved externally, whereas smooth in hind tibiae.
Ventrites IV–VI each with a pair of paramedial setae, VII bisetose apically in male.
Male genitalia (Fig. 7): The median lobe of aedeagus slightly arcuate at median portion, rounded blunt at apex; basal opening quite large, with a round and large sagittal aileron; inner sac provided with a thick and long copulatory piece, which is about 1/4 as long as aedeagus; in dorsal view, apical lobe longer than wide, widened at apex; parameres well-developed and elongated, the right one as long as the left, each armed with four long setae at apex.
Female: Unknown.
Etymology. To refer to the strong body and antennae.
Distribution. China (Hunan). Known only from Tangle Dong, sympatric with Xiangxius jiangi n. sp. (Fig. 1).
description: Published as part of Tian, Mingyi, Huang, Xinglong & Li, Chenliang, 2021, Contribution to the knowledge of subterranean ground beetles from eastern Wuling Mountains, China (Coleoptera: Carabidae: Trechinae), pp. 521-534 in Zootaxa 4926 (4) on pages 527-530, DOI: 10.11646/zootaxa.4926.4.3, http://zenodo.org/record/4529625