Guiodytes deharvengi Tian, 2014, n. sp.
Creators: name: Tian, Mingyi
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Carabidae
Guiodytes
Guiodytes deharvengi

description: Guiodytes deharvengi n. sp.
(Figs. 1, 4–7)
Holotype: male, Guangxi: Huanjiang Maonan Autonomous County: Shuiyuan Zhen: Sancai Cun: a cave named as Shuiku Dong, 24°49.430’N, 108°05.504’E, altitude 280 m, 2012-XII-4, leg. Louis Deharveng, Anne Bedos, Arnaud Faille and Mingyi Tian, in SCAU; paratypes: 1 male and 2 females, ibid, in SCAU and MNHN, Paris, respectively.
Length (from apex of left mandible to end of elytra): 9.2–9.5 mm; width: 2.5–2.8 mm. Habitus as in Fig. 4.
Head stout, from apex of mandible longer than wide, HL/HW=1.16–2.02, mean 1.18, or slightly longer than wide when measured from apex of clypeus, HL/HW= 0.81–0.84, mean 0.83; distinctly narrower than pronotum, HW/PW=0.78–0.81, mean 0.8; clypeus (with wings) strongly transverse, convex, bisetose at base, widely and deeply emarginate at front, making clypeal wings very protruding anteriorly; supra-antennal plates well marked, clearly separated from clypeal wings by a small but obvious notch, nearly rounded, strongly convex, smooth and glabrous; frons and vertex convex; two pairs of supraorbital pores present, at behind of supra-antennal plates and at neck constriction, respectively, and both on supraorbital furrows; supraorbital furrows very deep and wide, parallel-sided at middle of frons, then strongly divergent afterwards, ended to posterior supraorbital pores; supraorbital carinae distinct; frontoclypeal sulcus indistinct; eyes completely disappeared; genae well developed, subparallel-sided, frontal portion strongly broadened laterally; neck constriction distinct, beginning at the level of hind supraorbital pores; labrum conspicuously transverse, distinctly narrower than clypeus excluding clypeal wings, 6-setose, and ciliate on both sides, slightly emarginated at anterior margin; mandible short and stout, right mandible with a distinct median tooth; palps ensiform, glabrous, apical segments of both maxillary and labial palps longer than penultimate ones respectively; labial palpomere 2 bisetose on inner margin; ligula unisetose at apex; labial suture well marked, deeply and widely furrowed in median portion; mentum well developed, with two pairs of setae, one pairs situated beneath mental tooth, the other at base near lateral margin; median tooth simple, blunt at apex, lateral lobes wide, gently and obliquely truncated; submentum narrow, quadrisetose. Antennae filiform, extended to scutellum; antennomeres 1 unisetose at subapex, antennomere 2 asetose, pubescent from antennomere 3; antennomeres 2 and 3 subequal in length; antennomeres 5–10 subcylindrical, somehow flat, evidently longer than wide.
Pronotum peltate in form, much wider than head; disc smooth, moderately convex; slightly wider than long, PL/PW=0.96–0.99, mean 0.97; apex deeply concave, beaded in median portion, fore angles strongly protruding, sharper than in G. cavicola; widest at about middle, gently and gradually narrowed forwards to apex, and strongly contracted towards basal angles; side with three conspicuous teethed projections before hind angle; hind angle obtuse; two lateral setiferous pores present, anterior seta at about apical quarter, posterior one at about basal third, just before anterior lateral projection; marginal channel wide and uneven, narrower before anterior seta, wider between anterior and posterior lateral setae, ended before posterior seta; base unbordered; median line clear and deep; basal transverse impression deep and wide, rugose, and faintly carinated posteriorly; anterior transversal line free from median line, very close to anterior margin. Peduncle short, base of scutellum visible and rounded.
Elytra elongate ovate, wider than pronotum, EW/PW=1.34–1.35, mean 1.35, much longer than wide, EL/ EW=1.76–1.79, mean 1.78; strongly convex; widest at about middle, gently contracted anteriad and posteriad, base finely bisinuate; shoulders broadly obtuse, with two large serrated projections; apex pointed; side not parallelsided, distinctly crenulated from base to apical quarter; elytral striae punctate-striate, striae deep, intervals strongly convex; stria 1 with a small blunt tubercle at the base, just before scutellar pore; intervals 1–4 unbordered at base, other bordered at base; intervals 7 and 8 jointed before base, then jointed to interval 6 at base, all of them carinated near base; interval 3 with five foveolate setiferous pores at 8/9, 2/7, 1/2, 2/3 and 5/6 from base respectively; marginal channel with uninterrupted series of small setiferous pores and several large pores which bearing much longer setae; scutellar striae and scutellar pores present; hind wings reduced.
Underside of head covered with coarsely rugose and short wrinkles, proepisternum with dense isodiametric punctures, without wrinkle; pro-, meso- and metasterna smooth in middle portion, covered with small and sparse punctures at sides, pro-, meso- and meteepisterna coarsely punctured, epipleuron with a few coarser punctures near base; abdominal ventrites sparsely punctured at sides, each of ventrites IV–VI bearing a pair of paramedial setae, and ventrite VII of both male and female with two pairs of paramedial setae.
Legs rather stout and short; fore leg stout, profemur simple, moderately dilated; protibia well developed, quadridentate on outer margin, dorsal carina and sulcus distinct; lateral upper spine elongate ensiform, blunt at apex, much longer and stouter than subapical spur; protarsi short, tarsomere 1 much longer than other, tarsomeres 2–4 flat and transverse; middle and hind legs slender.
Male genitalia (Figs. 5–6). Weakly sclerotized; median lobe of aedeagus stouter than in G. cavicola, strongly arcuated, ventral margin unisinuate, gently enlarged towards apex which is very broad; basal orifice small; inner sac armed with longitudinal copulatory piece, apical one longer and broader; parameres similar to G. cavicola.
Female genitalia (Fig. 7). Similar to G. cavicola Tian, 2009 though gonocoxite and gonosubcoxite are slightly more slender; bursa copulatrix wide and folded, basally narrower; spermathecal gland very long and large, spermathecal gland duct wide and short.
Etymology. The name of this new species is dedicated to Prof. Dr. Louis Deharveng (MNHN, Paris), a wellknown biospeleologist.
Remarks. G. deharvengi n. sp. is similar to G. cavicola, but it is easily distinguished from the latter by its depigmented and stouter body, as well as its broader pronotum. Furthermore, elytra interval 3 bearing five dorsal setiferous pores in G. deharvengi n. sp. (while four pores in G. cavicola).
Distribution. China (Guangxi: Huangjiang County) (Fig. 1). Known only from Shuiku Cave, the type locality. In this cave are living also two blind trechines: Uenotrechus liboensis Deuve & Tian, 1999 (in Deuve et al., 1999) and Pilosaphaenops whitteni Tian, 2009.
description: Published as part of Tian, Mingyi, 2014, New records and a new species of the cavernicolous genus Guiodytes Tian, 2013 from Guangxi, China (Coleoptera: Carabidae: Scaritinae), pp. 355-362 in Zootaxa 3861 (4) on pages 357-361, DOI: 10.11646/zootaxa.3861.4.5, http://zenodo.org/record/225326