Stenothemus fukienensis Wittmer, 1974

Yang, Yuxia, Ge, Shujuan, Yang, Xingke & Liu, Haoyu, 2021, Review of the species of Stenothemus from Southeast China (Coleoptera, Cantharidae), European Journal of Taxonomy 744, pp. 119-144 : 139-141

Stenothemus fukienensis Wittmer, 1974

Figs 5A‒C , 7B , 8F

Stenothemus fukienensis Wittmer, 1974: 60 , figs 20–21.

Material examined

Holotype

CHINA • ♂; [p] “ Kuatun (2300m) 27, 40n. Br.// 117. 40ö. L. J. Klapperich // 3. 4. 1938 (Fukien)”, [h] “ Stenothemus // fukienensis // Wittm.// det. W. Wittmer ”, [p] “ HOLOTYPUS ”, [p] “Naturhistorisches// Museum Basel // Coll. W. Wittmer ”, [p] “ Cantharidae // CANTH00003399”; NHMB.

Other material

CHINA – Fujian • 1 ♂; Shaowu, Tachuland ; 14 May 1945; collector unknown; NHMB . – Zhejiang • 2 ♂♂, 1 ♀; Qingyuan, Baishanzu, Chameiyu ; 1300 m a.s.l.; 19 Apr. 1994; H. Wu leg.; IZAS • 1 ♂; same locality as for preceding; 800 m a.s.l.; 20 Apr. 1994; W.G. Zhang leg.; IZAS • 1 ♂; Longquan, Fengyangshan ; 1800 m a.s.l.; 18 May 2007; J.F. Gao and B.F. Zhou leg.; IZAS • 1 ♀; same locality as for preceding; 1250 m a.s.l.; 10 May 2007; S.L. Liu leg.; IZAS .

Supplementary description

Male

AEDEAGUS ( Fig. 5A‒C ). Strongly swollen laterally in basal part, contracted in diameter apically; basal piece nearly as long as dorsal plate of each paramere, with a large, bifurcate conjoint middle nodule at base of ventral side; ventral processes of parameres nearly parallel to one another, distinctly thickened apically, bent dorsally in lateral view; dorsal plate slightly longer than ventral process, abruptly narrowed in middle and wide-triangularly protuberant at apical part, near to each other at basal part, apex acute and folded ventrally; apical parts of laterophyses depressed and separate from each other, apex acute and bent dorsally, reaching middle emargination between dorsal plates.

Female

ABDOMINAL STERNITE VIII ( Fig. 8F ). Moderately narrowed posteriorly, posterior margin deeply and triangularly emarginate in middle and feebly emarginate on both sides; behind notch with membrane, narrowly bilobed at apex and present with longitudinal sclerite at center.

INTERNAL ORGAN OF REPRODUCTIVE SYSTEM ( Fig. 7B ). Vagina stout, with median oviduct situated at ventroapical part, diverticulum and spermathecal duct arising from apex; diverticulum extremely long, about 0.33 times body length, evenly thinned apically, slender tube-shaped and spiral; spermathecal duct much shorter than diverticulum; spermatheca slender tube-shaped and spiral, obviously thinner than spermathecal duct and nearly as long as diverticulum, with basal part extended into short tube, where accessory gland opening. Accessory gland thin and nearly as long as spermatheca.

Remarks

This species was described only based on the male, and the female is here recorded for the first time.

Distribution

China (Zhejiang, Fujian).

Figures

Fig. 5. Aedeagus (A, D, G = ventral view; B, E, H = dorsal view; C, F, I = lateral view). A‒C. Stenothemus fukienensis Wittmer, 1974 (IZAS, IOZ(E)1659634). D‒F. S. kuatunensis Wittmer, 1979 (IZAS). G‒I. S. chinensis (Wittmer, 1982) comb. nov. (IZAS, IOZ(E)1436585). Scale bars: 1.0 mm.

Fig. 7. Female internal reproductive system, lateral view. A. Stenothemus flavus Y. Yang & X. Yang sp. nov. (IZAS, IOZ(E)1659887). B. S. fukienensis Wittmer, 1974 (IZAS). C. S. chinensis (Wittmer, 1982) comb. nov. (MHBU). Scale bars: 0.5 mm.

Fig. 8. Female abdominal sternite VIII, ventral view. A. Stenothemus biimpressiceps (Pic, 1930) comb. nov. (IZAS, IOZ(E)1435863). B. S. pallicolor (Wittmer, 1951) comb. nov. (SYSU, En-076948). C. S. limbatipennis (Pic, 1926) stat. rev. et comb. nov. (MHBU). D. S. nigriceps (Wittmer, 1955) comb. nov. (MHBU). E. S. flavus Y. Yang & X. Yang sp. nov. (IZAS, IOZ(E)1659887). F. S. fukienensis Wittmer, 1974 (IZAS). G. S. chinensis (Wittmer, 1982) comb. nov. (MHBU). Scale bars: 1.0 mm.