Eutetrapha complexa Pu & Jin, 1991

Lin, Mei-Ying, Bi, Wen-Xuan & Yang, Xing-Ke, 2017, A revision of the genus Eutetrapha Bates (Coleoptera: Cerambycidae: Lamiinae: Saperdini), Zootaxa 4238 (2), pp. 151-202 : 158-159

Eutetrapha complexa Pu & Jin, 1991

Figs. 12–21

Eutetrapha complexa Pu & Jin, 1991: 192 , 197, pl. IIIB: 4. Type locality: China, Shaanxi, Zhouzhi County . Type depository: IZAS.

Eutetrapha complexa ; Hua et al., 2009: 455; Löbl & Smetana, 2010: 323; Lin, 2015: 274, fig. 217691.

Supplementary description. Male ( Figs. 12 – 13 , described for first time) matches female quite well, with antennae slightly longer, body slender, anterior claw of pro- and mesotarsi appendiculate with short tooth ( Figs. 146 a–c). Male (n =1): length 12.6 mm, width 4.0 mm. Female (n =2): length 15.5–17.0 mm, width 5.0– 5.7 mm. Male genitalia ( Figs. 15–20 ): Tergite VIII ( Figs. 15 a, 15c) slightly broader than long, apex almost rounded, slightly emarginate in middle, with setae which are long at sides, and shorter and sparser at middle. Spiculum gastrale subequal to ringed part of tegmen, spiculum relictum about a half of spiculum gastrale in length. Tegmen ( Figs. 16 a–c) about 3.1 mm in length; lateral lobes stout, each about 0.7 mm long and 0.3 mm wide; gradually narrower apically (from outer), apex with several fine setae which are shorter than half of length of lateral lobes; median lobe slightly curved ( Fig. 17 b) in lateral view, slightly shorter than tegmen (28:31); median struts about half-length of median lobe ( Fig. 17 b); apex of ventral plate ( Fig. 18 ) bluntly pointed; endophallus more than triple length of median lobe, with four pieces of basal plate-like sclerites (located behind apex of median struts), two bands of supporting armature, and three rod-like sclerites at end ( Fig. 20 ), two longer rods each about 2.1 mm, much shorter than tegmen, short rod about 1.9 mm. Female genitalia: spermathecal capsule ( Fig. 21 ) composed of an apical orb and a stalk. Spiculum ventrale longer than abdomen. In our observation, spiculum ventrale measured 8.4 mm for an adult compared with abdomen which measured 7.7 mm in ventral view.

Diagnosis. This species resembles E. sedecimpunctata ( Motschulsky, 1860) by the tawny pubescence and black spots on pronotum and elytra, but can be easily distinguished by having the elytron with a row of punctures between humeral carinae instead of two rows, punctures sparser between the exterior margin and external carina of humerus and black maculae on elytra larger and positioned near lateral margin ( Pu & Jin 1991, partially modified).

Distribution. China: Shaanxi, Gansu (new province record).

Type specimen examined. Holotype ( Fig. 14 ), female, Shaanxi, Zhouzhi County, 1981. VII.19, leg. Zhong- Fang Wang ( IZAS, IOZ (E) 217691).

Other specimens examined. Shaanxi: 1 male ( Fig. 12 ), Ningshan, Huoditang , 1580 m, 1998. VII.27, leg. Xue-Zhong Zhang ( IZAS) ; 1 female, Qinlingshanliang, and North slope, 2050 m, 1998. VII.30, leg. Jian Yao ( IZAS) ; 1 female, Qinling Mts., S. slope, Xunyangba - S+W env., 33°28–37'N, 108°23–33'E, 1400–2100 m, 1995. VI.5–9, leg. L. & R. Businský ( CCH, examined by Carolus Holzschuh). Gansu : 1 male ( Fig. 13 ), S. Gansu, through a photograph shown to us by Tomas Tichy, the locality could be Wudu , which was also available on website http://www.gorodinski.ru/view_cerambycidae.php?id_cerambyx=357 (access on April 13, 2015).

Figures

FIGURES 12 – 14. Eutetrapha complexa Pu & Jin, 1991, habitus. 12. Male, from China, Shaanxi; 13. Male, from China, Gansu. 14. Holotype, female, from China, Shaanxi. 12 & 14. Scale 2 mm. 13. Not to scale.

FIGURES 15 – 21. Terminalia of Eutetrapha complexa Pu & Jin, 1991. 15 – 20. Male genitalia, from China, Shaanxi. 15. Tergite VIII and sternites VIII & IX. 16. Tegmen. 17. Median lobe plus endophallus, 17 b and 17 c with apical part of endophallus missing. a. Ventral view, b. Lateral view, c. Dorsal view. 18. Apex of ventral plate. 19. The sclerotized microspinules on apical part of endophallus. 20. Rod-like sclerites. 21. Female from China, Shaanxi, showing the spermathecal capsule (part, broken). Scale 1 mm, 18 – 21 not to scale.

FIGURES 143 – 147. Claw types. 143. Simple. 144. Appendiculate. 145. Only anterior claw appendiculate. 146. Only anterior claw appendiculate at outer side (left mesotarsus of male Eutetrapha). 147. Anterior claw appendiculate at outer side and posterior claw appendiculate normally (left mesotarsus of male Eutetrapha chlorotica Pu & Jin, 1991 and E. tianmushana Lin & Bi, sp. nov.). a. Frontal view. b. Lateral view. c. Lateral view in another side.