Teledapus linyejiei, Huang & Li & Zhang, 2021

Huang, Gui-Qiang, Li, Song & Zhang, Gui-Mei, 2021, A remarkable new species of Teledapus Pascoe, 1871 from China (Coleoptera Cerambycidae: Lepturinae: Teledapini), Zootaxa 4926 (3), pp. 441-445 : 441-444

Teledapus linyejiei sp. nov.

ẇŵĿḦDR+

Figures 1–15

Description. Holotype male. Body length: 14.8–15.4 mm, humeral width: 3.0– 3.3 mm (holotype and 1 paratype); holotype ( Figs. 1–15 ), body length: 14.8 mm, humeral width: 3.3 mm. Body reddish brown; maxillary and labial palpi yellowish brown; apical half, margin of basal half of mandibles and eyes black; parts of following structures: prothorax, mesoventrite, mesanepisternum, mesepimeron, metaventrite, metanepisternum, elytra, abdominal ventrites dark reddish brown to black; each elytron with an arcuate yellowish brown stripe at middle, starting at basal third and reaching the apical third, the extremes of the stripe do not reach the epipleura; coxae, trochanters and femora dark reddish brown to black; tibiae and basal two tarsomeres reddish brown, tarsomeres III-V and claws yellowish brown ( Figs 1, 5 ).

Head, antennae, prothorax, scutellum, elytra, mesoventrite, metaventrite, abdomen and legs sparsely covered with short brown pubescence; posterior region of upper lobe of eyes, prothorax (dorsum and sides), and elytra sparsely covered with erect long brown setae. Head densely covered with sub-rounded coarse punctures (punctures slightly sparser and finer on venter); frons longer than wide, with a trapezoidal deep depression ( Fig. 4 ); mandibles sparsely covered with long and short brown setae on externo-basal half, with dense short golden setae near ventrointernal middle, longer than in frons ( Fig. 4 ). Labrum sparsely covered basally and laterally with long and short yellowish-brown setae, with sub-rounded fine punctures at base and sides, rounded apically ( Fig. 4 ); anteclypeus glabrous and nearly smooth, truncated apically ( Fig. 4 ). Clypeus sparsely covered with long brown setae on anterior margin, distinctly processed beyond base of mandibles ( Fig. 4 ). Antennal tubercles distinctly raised; median groove extending from apex of frons to region between upper eye lobes; vertex with two shallow depressions near posterior of antennal tubercles. Scape, pedicel and apex of antennomeres III–X sparsely covered with long brown setae, antennae 0.95 time as long as body, antennal formula (ratio) based on length of antennomere III: scape= 0.75, pedicel= 0.25, IV= 0.75, V= 0.92, VI= 0.83, VII= 0.88, VIII= 0.67, IX= 0.68, X= 0.58, XI= 0.60; scape, pedicel, and antennomeres III–V densely covered with sub-rounded fine punctures, punctures on antennomeres VI–XI gradually sparser toward apex of antennae; antennomeres III–XI expanded apically, left antennomere XI processed inwardly near middle (right antennomere XI normal), rounded apically.

Prothorax densely covered with sub-rounded coarse punctures dorsally and laterally, pronotum with a pair of indistinct oblique gibbosities, raised near basal middle; prosternum sparsely covered with sub-rounded fine punctures, slightly denser near prosternal process, wrinkled; prosternal process narrow, with lateral margins distinctly raised. Scutellum ligulate, with dense and fine sub-rounded punctures, raised near marginal middle and at apex. Elytra 3.1 times as long as wide at base, densely covered with sub-rounded coarse punctures, each elytron with an oblique depression at basal fourth, suture elevated. Hind wings ( Fig. 6 ) vestigial, sparsely covered with short brown setae, each seta located in a sub-rounded fine puncture. Mesoventrite, mesanepisternum, mesepimeron, metaventrite and metanepisternum densely covered with sub-rounded fine punctures, mesoventral process with a longitudinal median groove, with lateral margins distinctly raised, margins of mesanepisternum raised, mesepimeron slightly covering the metanepisternum. Metaventrite raised at basal and lateral margins, with a triangular deep depression at apical middle, metanepisternum raised at margins and depressed at basal third. Ventrites densely covered with sub-rounded fine punctures, ventrites I–IV glabrous apically, ventrite V truncated apically. Coxae, trochanters, femora and tibiae densely covered with sub-rounded fine punctures.

Male terminalia. Tergite VIII dorsally sparsely covered with long and short brown setae from apex to apical 3/5, with sparse short brown setae from base to dorso-basal 2/5 ( Fig. 7 ), moderately with dense short brown setae from apex to ventro-apical third ( Fig. 8 ); disc gradually expanded from base to basal third, then gradually constricted to apex, truncated apically ( Fig. 7 ); sternite VIII ( Fig. 8 ) sparsely covered with short brown setae from ventro-apical sides to latero-basal third, with several long brown setae at apical sides; disc nearly trapezoidal, curvedly emarginated at apex, nearly as long as spiculum relictum. Spiculum gastrale ( Figs. 9–10 ) nearly 2.0 times as long as tergite VIII, stem about 2.5 times as long as branches. Tegmen ( Figs. 11–12 ) distinctly shorter than penis, parameres sparsely covered with short brown setae on venter and internal margin, dorsally with extremely sparse short brown setae, with several long brown setae at apex; phallobase more than 2.5 times as long as parameres, abruptly constricted at middle ( Fig. 11 ), curved towards venter near basal third and curved towards dorsum near apical fifth in lateral view ( Fig. 12 ), tegminal struts of phallobase not fused apically ( Fig. 11 ). Penis ( Figs 13–15 ) curved near middle and uniformly thickened from middle to apex of dorsal struts in lateral view ( Fig. 15 ), ventral lobe sharp apically and distinctly longer than dorsal lobe ( Figs 13–14 ), which is truncated apically ( Fig. 14 ), dorsal struts less than 0.5 time as long as entire penis and truncated apically.

Female. Unknown.

Diagnosis. This new species is clearly distinguished from other Teledapus spp. by the presence of a lateral, arcuate yellowish-brown stripe at the middle of each elytron, as showed in Figs 1, 5 .

Etymology. The scientific name of this new species is dedicated to Mr.Ye-Jie Lin (ẇŵĿ) from Dalian, Liaoning, China for donating material of this new species.

Type specimens examined. Holotype: ♂ ( LPSNU), CHINA: Yunnan Province: Weideng Township, Weixi Lisu Autonomous County, Diqing Tibetan Autonomous Prefecture , 7 May 2020, Bai-Jun Li leg. Paratype: 1 ♂ ( CYJL), same data as holotype .

Distribution. China (Yunnan).

Remarks. All specimens examined were collected on leaf of unknown plant (Bai-Jun Li per. comm.). The abdomen of holotype is not extended beyond the elytral apex ( Figs 1–2 ), while the ventrite V of the paratype is extended beyond the elytral apex, this might be caused because the holotype had not developed completely after its emergence.

Figures

FIGURES 1–6. Teledapus linyejiei sp. nov., holotype, male. 1–3. Habitus, 1. Dorsal view, 2. Ventral view, 3. Lateral view; 4. Head, frontal view; 5. Elytra, lateral view; 6. Metathorax and abdomen, dorsal view (red arrows indicate hind wings). Scale bars: a= 5 mm, b= 2 mm, c= 5 mm (for Figs 5, 6).

FIGURES 7–15. Male terminalia of Teledapus linyejiei sp. nov., holotype. 7. Tergite VIII; 8. Sternite VIII; 9–10. Spiculum gastrale; 11–12. Tegmen; 13–15. Penis, 14. Apex of dorsal lobe and ventral lobe; 7, 11, 13, 14. Dorsal view; 8, 10. Ventral view; 9, 12, 15. Lateral view. Scale bar: 1 mm.