Rhagonycha (s.str.) yunnana Wittmer, 1997

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 : 15-18

Rhagonycha (s.str.) yunnana Wittmer, 1997

( Figs 6D , 7D , 8D , 9D–F , 38 )

Rhagonycha yunnana Wittmer, 1997: 332 , figs 211, 212.

Type material examined. HOLOTYPE ♂ ( NHMB), [p] “ China Yunnan 1.‒19.VII. / HEISHUI 27.13N 100°19S [E] / 35 km N of Lijiang / legit. S. Bečvář 1992”, [p] “ HOLOTYPUS ”, [h] “R. / yunnana / Wittm. / det. W. Wittmer ”, [h] “REM / 95 / 9.7”, [p] “Naturhistorisches / Museum Basel / Coll. W. Wittmer ”, [p] “ CANTHARIDAE / CANTH00003357”.

Other material examined. CHINA, Yunnan: 1♀ ( IZAS), Lushui , 2500 m, 4.VI.1981, leg. S.B. Liao ; 1♂, 5♀♀ ( IZAS), Lijiang, Yulongshan , 2800 m, 17.VII.1984, leg. S.Y. Wang ; 1♂ ( IZAS), same data as the preceding, 2850 m, 14.VII.1984, leg. D.J. Liu ; 1♂ ( CAS), Gongshan Country, Qiqi reserve , 27.63° N, 98.62° E, 2100 m, 12.VII.2000, Sino-Amer Exped, leg. H.B. Liang ; 1♂, 3♀♀ ( CAS), Gongshan Country, No 12 Bridge , 27.72° N, 98.60° E, 2750 m, 15.VII.2000, Sino-Amer Exped, leg. H.B. Liang ; 1♀ ( CAS), Gongshan Country, Danzhu , 27.63° N, 98.37° E, 2600 m, 15.VII.2000, Sino-Amer Exped, leg. H.B. Liang.

Descriptive notes. Male ( Fig. 6D ). Aedeagus moderately swollen laterally near middle ( Fig. 9D, E ); ventral processes of parameres abruptly thinned apically near bases, small-triangularly emarginate at apices, feebly bent to each other in ventral view ( Fig. 9D ), widened and rounded at apices, feebly bent ventrally in lateral view ( Fig. 9F ); conjoint dorsal plate of parameres nearly as long as ventral processes ( Fig. 9F ), with apical margin moderately and roundly emarginate in middle, lateral margins feebly diverging apically, latero-apical angles rounded ( Fig. 9E ), and feebly inclined ventrally in lateral view ( Fig. 9F ); the emargination between conjoint dorsal plate and ventral process about 2/5 length of aedeagus ( Fig. 9F ).

Female. Internal organ of reproductive system ( Fig. 7D ): vagina stout and abruptly thinned at ventroapical portion into a long tube, where diverticulum and spermathecal duct arising separately; diverticulum short and spiral, progressively thinned apically; spermathecal duct very short and about 1/8 length of apical tube of vagina; spermatheca provided with a spiral tube, progressively thinned apically and about twice longer than diverticulum; accessory gland extremely long, about three times longer than spermatheca.

Abdominal sternite VIII ( Fig. 8D ) moderately narrowed posteriorly, acute at latero-apical angles widely triangular, and arcuately emarginate on both sides and shallowly emarginate in middle of posterior margin, with the portions between lateral and middle emarginations acute at apices and extending over apices of latero-apical angles.

Destribution ( Fig. 38 ). China (Yunnan).

Figures

FIGURE 7. Internal organ of female reproductive system, ventral view: A. Rhagonycha spinosa Wittmer, 1997; B. Rh. tibetana Švihla, 2002; C. Rh. weichowensis Wittmer, 1997; D. Rh. yunnana Wittmer, 1997. Scale bars: 1.0 mm.

FIGURE 8. Abdominal sternites VIII of female, ventral view: A. Rhagonycha spinosa Wittmer, 1997; B. Rh. tibetana Švihla, 2002; C. Rh. weichowensis Wittmer, 1997; D. Rh. yunnana Wittmer, 1997. Scale bars: 1.0 mm.

FIGURE 9. Aedeagi of Rhagonycha species (A, D. ventral view; B, E. dorsal view; C, F. lateral view): A‒C. Rh. weichowensis Wittmer, 1997; D‒F. Rh. yunnana Wittmer, 1997. Scale bars: 1.0 mm.

FIGURE 38. Distribution map of the species similar to Rhagonycha spinosa in the aedeagi from southwest China.

FIGURE. 6. Male habitus of Rhagonycha species, dorsal view: A. Rh. spinosa Wittmer, 1997; B. Rh. tibetana Švihla, 2002; C. Rh. weichowensis Wittmer, 1997; D. Rh. yunnana Wittmer, 1997. Scale bars: 2.0 mm.