Morphostenophanes sinicus Zhou

Zhou, De-Yao, 2020, A revision of the genus Morphostenophanes Pic, 1925 (Coleoptera, Tenebrionidae, Stenochiinae, Cnodalonini), Zootaxa 4769 (1), pp. 1-81 : 58-59

publication ID

https://doi.org/10.11646/zootaxa.4769.1.1

publication LSID

lsid:zoobank.org:pub:A827EDA4-F0AF-4BCE-AF5E-4DF0475E42CD

DOI

https://doi.org/10.5281/zenodo.3815893

persistent identifier

https://treatment.plazi.org/id/A48FC455-0501-4071-B33D-9385B32D4F46

taxon LSID

lsid:zoobank.org:act:A48FC455-0501-4071-B33D-9385B32D4F46

treatment provided by

Plazi

scientific name

Morphostenophanes sinicus Zhou
status

new species

Morphostenophanes sinicus Zhou , new species ¢ṃẎȐAEƤ

( Figs. 36 View FIGURE 36 A–E; 39B, F, J, N; 40B, G, M–O; 41B, F)

Type materials. CHINA: Yunnan: ♂ (Holotype, SNUC) , Lincang City, Manwan Town, Shuibatou Village , 1900–2200 m, 2016.i–iii, Zi-Chun Xiong. Paratypes (37♂♂, 22♀♀) : CHINA: Yunnan: 1♀ ( SNUC) , 3♂♂, 3♀♀ ( MHBU) , 10♂♂, 6♀♀ ( CZDY, a sample of eggs was preserved in 99.7% ethanol at –18 °C) , Lincang City, Manwan Town, Shuibatou Village , 1900–2200 m, 2016.i–iii, Zi-Chun Xiong; 2♂♂ ( CBNX) , Lincang City, Manwan Town, Shuibatou Village , 1900–2200 m, 2016.i–iii, Zi-Chun Xiong; 3♂♂ ( CYM) , Lincang City, Manwan Town, Shuiba- tou Village , 1900–2200 m, 2017.viii.10, Zi-Chun Xiong; 3♂♂ ( CZDY) , Lincang City, Manwan Town, Shuibatou Village , 1900–2200 m, 2018.iii, Zi-Chun Xiong; 2♂♂, 4♀♀ ( MYNU) , Lincang City, Manwan Town , 2016.ii.22, Zi-Chun Xiong; 1♂, 1♀ ( MYNU) , Lincang City, Manwan Town, Manjiu , 2017.i.15, Zi-Chun Xiong; 2♂♂ ( CZDY, a male was preserved in 99.7% ethanol at –18 °C) , Lincang City, Daxueshan Nature Reserve , 23°59’28.40”N, 100°18’46.21”E, 2018.xi.7, Zi-Chun Xiong; 3♂♂, 2♀♀ ( CZDY) GoogleMaps , Lincang City, Maolan Town, Mount Dabin , 24°40’21.58”N, 100°17’58.94”E, 2018.ii, Zi-Chun Xiong; 1♂ ( CBWX) GoogleMaps , Lincang City, Bangdong Country, Mount Wulao , 2600 m, Y.-H. Li; 1♂, 4♀♀ ( CBWX, a sample of muscle tissue was preserved in 99.7% ethanol at –18 °C in CZDY) , Mount Wuliang, De’an Village, Sheyaoqing , 2300–2450 m, 2017.vii.10–11, Wen-Xuan Bi; 3♂♂, 1♀ ( CZDY, a sample of muscle tissue was preserved in 99.7% ethanol at –18 °C) , Mount Ailao, Qianjiazhai , near 24°17’1.38”N, 101°15’27.57”E, 2225–2694 m, 2011.viii, native collector; 3♂♂ ( CZDY, a sample of muscle tissue was preserved in 99.7% ethanol at –18 °C) GoogleMaps , Yuxi City , Yuanjiang County, Yangchajie Country, ca. 2300 m, 2017. v.1, Min-Fei Hou .

Diagnosis. Body medium-sized to large, slightly greenish. Antennae long, reaching apical third of elytra. Pronotal lateral margins rounded, lateral marginal borders visible in dorsal view along anterior half. Elytra with rows of round or oval segments of striae, some interrupted or straightly presented, with encircled areas convex, elytral aspect ratio greater than 1.9 in male, and greater than 1.6 in female. Apex of parameres bent ventrally in lateral view.

Description. Male ( Fig. 36A, B, D View FIGURE 36 ). Color bronze, with greenish sheen, shagreened; antennae dark brown, claws reddish brown. Body elongate, length 20.0– 24.4 mm, width 7.0– 9.5 mm, strongly convex, noticeably constricted between pronotum and elytra.

Head ( Fig. 39B, F View FIGURE 39 ) transversely subquadrate, sparsely and finely punctate, with outer margin moderately notched between genae and clypeus; clypeus transversely hexagonal, gently bent downwards in front, convex before middle of frontoclypeal suture, with anterior margin nearly straight, clypeal transverse impression marked to absent; frontoclypeal suture moderately grooved, becoming weaker laterally, widely U-shaped; genae strongly raised, depressed before eyes, roundly produced anterolaterally; frons broad, smooth, anterior part gradually sloping forwards; eyes transversely reniform, strongly convex laterally; inner ocular sulci grooved along inner margins; tempora moderately convex. OI = 46.7–50.7.Antennae ( Fig. 40B View FIGURE 40 ) slender, reaching basal third of elytra, with antennomeres weakly thickened to apices; relative lengths of antennomeres: 0.75: 0.36: 1.12: 1.16: 1.24: 1.24: 1.26: 1.17: 1.11: 1.07: 1.22. Mentum ( Fig. 39F View FIGURE 39 ) subcircular, lateral margins rounded, seamlessly connected posteriorly to the emarginate posterior margin; medial surface sparsely and coarsely punctate, with several large pores bearing long setae, gradually rising anteriorly, depressed along both sides.

Pronotum ( Fig. 39J View FIGURE 39 ) barrel-shaped, PW/PL = 1.07–1.12, widest near middle, anterior margin nearly straight, slightly projecting in middle, anterior marginal border marked; lateral margins rounded, lateral marginal borders thin, slightly sinuate, weakly projecting laterally at widest points, visible in dorsal view along anterior half; posterior margin weakly rounded, emarginate in middle, posterior marginal border marked; anterior angles rounded, posterior angles obtuse; disc strongly convex in middle, shagreened, finely and sparsely punctate. Scutellum widely triangular, glossy, finely punctate.

Elytra elongate oval, widest near middle, EL/EW = 1.92–2.01; strongly convex, highest near middle; with rows of round or oval segments of striae, some interrupted or straight, encircled areas strongly or moderately convex; intervals shagreened and smooth, sparsely and finely punctate.

Prosternum ( Fig. 39N View FIGURE 39 ) shagreened, finely and sparsely punctate; prosternal process declivous, apex truncate; hypomeron rugulose, shagreened. Metasternum finely wrinkled. Abdomen depressed, surface somewhat rough, densely and finely punctate, with sternites III, IV and anterior 3/5 of V sulcate along both sides.

Legs slender. Protibiae ( Fig. 40M View FIGURE 40 ) curved in apical third, apical 3/5 of inner margins pubescent, outer margin emarginate near middle; mesotibiae ( Fig. 40N View FIGURE 40 ) weakly curved in apical third, apical 3/5 of inner margins pubescent; metatibiae ( Fig. 40O View FIGURE 40 ) weakly curved, apical 3/5 of inner margins emarginate and pubescent, outer margins depressed before apices.

Aedeagus ( Fig. 41B View FIGURE 41 ) elongate, curved in lateral view; parameres slender, 0.22 as long as total length, with apex obtusely lance-shaped, weakly bent ventrally in lateral view. Sternite VIII ( Fig. 41F View FIGURE 41 ) with apical lobes ovate in lateral view, superior margins projecting dorsad, exterior margins and inferior margins rounded.

Female ( Fig. 36C, E View FIGURE 36 ). Wider than male, length 20.5–23.8 mm. Eyes closer, OI = 42.9; PW/PL = 1.15; elytra stouter, EL/EW = 1.61–1.76, more convex, highest in middle; abdomen straight in lateral view. Ovipositor elongate, gradually narrowing apically, apex of gonocoxite acute.

Variability. One male from Yuanjiang County has darker and extremely slender body ( Fig. 36B View FIGURE 36 ), another Yuanjiang male has pitch black body color almost without metallic luster. One female from Wuliang Mountain shows ridged elytral intervals ( Fig. 40G View FIGURE 40 ).

Comparative notes. Morphostenophanes sinicus is similar to M. gaoligongensis . Detailed comparison and diagnosis is provided in the comprative notes of M. gaoligongensis .

Distribution. ( Map 1 View Map 1 ) CHINA: Yunnan.

Etymology. The new species is named after the country of its type locality.