Rhagonycha (s.str.) flava (Pic, 1926)

Xiao, Yun-Feng, Liu, Hao-Yu, Yang, Xing-Ke & Yang, Yu-Xia, 2024, Taxonomic review of the Rhagonycha flava species group (Coleoptera, Cantharidae), with descriptions of fourteen new species from China, Zootaxa 5534 (1), pp. 1-69 : 21-23

Rhagonycha (s.str.) flava (Pic, 1926)

( Fig. 10B , 11D–F , 12B, 12D , 36 )

Podabrus flavus Pic, 1926b: 356 .

Rhagonycha flava : Wittmer, 1997: 326, figs 200, 201.

Type material examined. LECTOTYPE ♂ ( MHNH), [p] “MUSEUM PARIS / MOU PIN / A. DAVID 1870”, [p] “MUS. HIST. NAT. / A. DAVID / Moupin (Thibet) / 1871”, [p] “ LECTOTYPUS ”, [p] “ Podabrus / flavus Pic / n sp”, [h] “ Rhagonycha / flava / (Pic) / det. W. Wittmer ”.

Other material examined. CHINA, Sichuan: 2♂♂ ( IZAS), Emeishan, Jinding , 3000−3200 m, 22.Ⅴ.1957, leg. K.R. Huang ; 1♂ ( IZAS), Emeishan, Jiulaodong , 1800−1900 m, 17.VI.1957, leg. Y.C. Xu ; 2♀♀ ( MHBU), Chongzhou, Jiguanshan, Anzihe Nature Reserve , Shaoyaogou Protection Station , 30.Ⅴ.2016, leg. L.M. Li ; 1♂, 4♀♀ ( MHBU), same data as the proceding, 29.Ⅴ.2016 ; 3♂♂, 1♀ ( MHBU), Chongzhou, Jiguanshan , 21.VI.2016, leg. F.M. Shi ; 12♂♂, 20♀♀ ( MHBU), Anzihe, Shaoyaogou , 31.Ⅴ.2016, leg. L.M. Li ; 2♀♀ ( MHBU), Liziping, Menghuo, Pusagang , 26.VII.2016, leg. L.M. Li.

Descriptive notes. Male ( Fig. 10B ). Aedeagus moderately swollen laterally near middle ( Fig. 11D, E ); ventral processes of parameres abruptly thinned apically near bases, with apices directing laterally in ventral view ( Fig. 11D ), acute at apices, moderately wide and feebly bent dorsally in lateral view ( Fig. 11F ); conjoint dorsal plate of parameres feebly shorter than ventral processes ( Fig. 11F ), with apical margin deeply and triangularly emarginate in middle, lateral margins moderately diverging apically in dorsal view ( Fig. 11E ), latero-apical angles acute, bent ventrally in lateral view ( Fig. 11F ); the emargination between conjoint dorsal plate and ventral process about 1/4 length of aedeagus ( Fig. 11F ).

Female. Internal organ of reproductive system ( Fig. 12B ): vagina stout and abruptly thinned at ventroapical portion into a long tube, where diverticulum and spermathecal duct arising separately; diverticulum short and spiral, evenly thin along the whole length; spermathecal duct short and about 1/4 length of apical tube of vagina; spermatheca provided with a spiral tube, progressively thinned apically and about twice longer than diverticulum; accessory gland long, about twice as long as spermatheca.

Abdominal sternite VIII ( Fig. 12D ): moderately narrowed posteriorly, widely triangular at latero-apical angles, and feebly and trapezodinally protuberant in middle of posterior margin.

Destribution ( Fig. 36 ). China (Sichuan).

Figures

FIGURE 11. Aedeagi of Rhagonycha species (A, D. ventral view; B, E. dorsal view; C, F. lateral view): A‒C. Rh. bimucronata Švihla, 2005; D‒F. Rh. flava (Pic, 1926). Scale bars: 1.0 mm.

FIGURE 12. Internal organ of female reproductive system (A, B) and abdominal sternites VIII, ventral view (C, D) of Rhagonycha species: A, C. Rh. bimucronata Švihla, 2005; B, D. Rh. flava (Pic, 1926). Scale bars: 1.0 mm.

FIGURE 36. Distribution map of the species similar to Rhagonycha flava in the aedeagi from southwest China.

FIGURE. 10. Male habitus of Rhagonycha species, dorsal view: A. Rh. bimucronata Švihla, 2002; B. Rh. flava (Pic, 1926). Scale bars: 2.0 mm.