Laena hongqiao Zhou & Song, 2019

Song, Xiao-Bin, Zhou, De-Yao, Chen, Zhi-Bing, Lin, Ming-Zhen & Zhu, Jian-Qing, 2019, First record of tribe Laenini (Coleoptera, Tenebrionidae, Lagriinae) from Shanghai, with description of a new species of the genus Laena Dejean, Zootaxa 4712 (1), pp. 90-100 : 91-94

Laena hongqiao Zhou & Song , new species

( Fig. 1 )

Vernacular name: ṘŘẌƤ

Type material. 3 ♂♂, 3 ♀♀. Holotype: CHINA: ♂ ( SNUC), labeled ‘ China: Shanghai, Changning District (K Ṫ ³ ), Shanghai Zoo (±dzḿn'ẘ), artificial mixed forest, sifted, 6.ix.2017, Song Xiao-Bin leg. / HOLOTYPE [red],

Laena hongqiao sp. nov., Zhou & Song det. 2018’ Paratypes: CHINA: 1 ♂, 1 ♀ (cSXB), 1♀ ( SHZ), 1♀ ( MHBU), same label data as holotype , / PARATYPE [yellow], Laena hongqiao sp. nov., Zhou & Song det. 2018; 1 ♂ ( SNUC), same label data as holotype, except ‘ 26.v.2016, Zhou De-Yao , Wang Dan, Peng Zhong & Tu Yue-Ye leg., / PARA- TYPE [yellow], Laena hongqiao sp. nov., Zhou & Song det. 2018’.

Diagnosis. Dark colored species, with all femora umarmed. Pronotum nearly rounded, bearing large and sparse punctures with its lateral margins bordered. Male anterior tibiae and middle tibiae each with a protruded inner apex, male anterior tarsi not widened. Parameres long, about 0.25 as long as the aedeagus length, with an acute apex.

Description. Male ( Fig. 1A ). Body length 4.10–5.03 mm; body black, antennae, femora, tibiae dark brown, maxillary palpi and tarsi light brown.

Head ( Fig. 2A ) wide, subhexagonal; clypeus with broad and shallow emargination; genae moderately raised; frons weekly convex in middle; frons covered with sharply marked and deep punctures, on sides separated by spaces as wide as puncture diameters, less dense in middle. Eyes round, prominent. Antennae ( Fig. 3A ) extending to the base of elytra, relative ratio of the length (width) of antennomeres II–XI as follows: 7.5 (6.1): 9.2 (6.0): 7.6 (6.0): 8.4 (6.6): 8.9 (6.5): 9.5 (7.3): 9.5 (7.3): 9.5 (8.4): 9.6 (9.9): 15.4 (11.8).

Pronotum ( Fig. 2B ) with straight anterior margin, 1.1 times as wide as long, widest near anterior 2/5; lateral margins bordered, posterior margin not bordered and not bent downwards, posterior angles rounded. Punctation of disc distinct, composed of large and deep punctures, distance between punctures equal to 1–2 puncture diameters, most punctures with long and erect setae. Propleura sparsely bearing large punctures, each with a short seta.

Elytra oblong, width across the humeri wider than posterior margin of pronotum, 1.6–1.7 times as long as wide, widest at just posterior to the middle; dorsum flattened, elytra with rows of punctures in striae, the punctures as large as those on pronotum, each bearing a long seta, intervals between rows with minute punctures, each bearing a short and erect seta, all the intervals flat and shagreened, interval IX with 6 setiferous umbilicate pore, interval VII with 2 setiferous umbilicate pores ( Fig. 2C ).

All femora ( Fig. 3 F–H) without teeth. Inner apex of anterior tibiae ( Fig. 3D ) and middle tibiae projecting ( Fig. 3E ).

Sternite VII ( Fig. 3I ) somewhat rounded at apical margin. Aedeagus see Fig. 3 B–C.

Females. Similar to male, but body larger, body length 5.00– 5.56 mm, with unmodified inner apex of anterior tibiae and middle tibiae; sternite VII ( Fig. 3J ) nearly rounded at apical margin.

Comparative notes. Within described Chinese, Japanese and Korean congeners, Laena hongqiao shares unarmed femora with Laena moxica Schawaller, 2008 from Sichuan, L. guizhouica Schawaller, 2008 from Guizhou, L. jiangxica Schawaller, 2008 from Jiangxi, L. guangxica Schawaller, 2008 from Guangxi, L. daliensis Masumoto & Yin, 1994 and L. watanabei Masumoto & Yin, 1993 from Yunnan, L. zhengi Zhao & Ren, 2011 and L. motogana Zhao & Ren, 2012a from Xizang (figures and illustrations of these species see Zhao 2012), all these species are found in high mountains far from Shanghai. The punctation and shape of pronotum, elytra humer, aspect ratio of elytra and shape of aedeagus readily distinguish L. hongqiao from L. moxica , L. guangxica , L. daliensis , L. watanabei , and L. motogana .

Laena hongqiao closely resembles L. jiangxica , L. guizhouica and L. zhengi in general appearance, however, L. zhengi possesses quinquangular aedeagal parameres which distinctly differ from that of L. hongqiao ; L. jiangxica and L. guizhouica bears much shorter parameres with obtuse apex, which is different from the longer and acute one of L. hongqiao .

Laena confusa Löbl & Schawaller, 2008 is a replacement name for Laena chinensis Li & Chen, 1993 (a homonym of L. chinensis Kaszab, 1965 ). According to the original description, L. confusa has armed anterior femora, which can be used to clearly separate it from L. hongqiao .

Bionomics. Type specimens of L. hongqiao were collected by sifting leaf litter in an artificial mixed forest mainly consists of Cinnamomum camphora (L.) J. Presl, 1825.

Distribution. East China: Shanghai.

Etymology. Named after Hong Qiao Economic and Technological Development Zone (ṘŘḠaeḃẆHȐ ³), where the type series was collected.

Figures

FIGURE. 1 Dorsal habitus of Laena hongqiao sp. nov., male (Holotype). B. Living L. hongqiao sifted from leaf litter. C. Habitat of L. hongqiao in Shanghai Zoo.

FIGURE. 2 Diagnostic features of Laena hongqiao A. Head in dorsal view. B. Pronotum in dorsal view. C. Left elytron in lateral view, showing setiferous umbilicate pores on intervals (arrowed). Abbreviations: i7, interval 7; i9, interval 9.

FIGURE. 3 Diagnostic features of Laena hongqiao A. Left antenna in dorsal view, B. Aedeagus in dorsal view. C. Aedeagus in lateral view. D. Apical portion of right anterior tibia of male in dorsal view. E. Apical portion of left middle tibia of male in dorsal view. F. Right anterior tibia and anterior femur in dorsal view. G. Left middle tibia and middle femur in dorsal view. H. Left posterior tibia and posterior femur in dorsal view. I. Sternite VII of male in ventral view. J. Sternite VII of female in ventral view.