Euseboides reni Huang, Chen & Li

Huang, Gui-Qiang, Li, Zhu & Chen, Li, 2015, A revision of the genus Euseboides Gahan, 1893 (Coleoptera: Cerambycidae: Lamiinae), with description of two new species, Zootaxa 3964 (2), pp. 151-182 : 157-158

Euseboides reni Huang, Chen & Li , sp. nov.

( Figures 87–106 )

Male. Length: 11.5–12.5 mm; humeral width: 3.0 mm. Body glossy and dark reddish brown. Mandible reddish brown at basal half and darker towards apex ( Fig. 91 ). Basal half of antennomeres III–XI pale yellow and moderately covered with dense and short white pubescence, and sparsely covered with short brown pubescence; apical half of antennomeres III–XI black or dark brown, and moderately covered with dense short dark brown pubescence, antennomeres III–X sparsely with longer black hairs apically ( Figs 87 & 88 ). Pronotum covered with 3 longitudinal yellowish brown stripes, one narrow in middle, and the other two broad at sides ( Fig. 87 ). Scutellum densely covered with yellowish brown pubescence ( Fig. 87 ). Elytra moderately covered with dense and short brown hairs, elytron covered with fragmentary white spots behind depression forming a vague and oblique band, sparsely with a series of fragmentary white spots from posterior of band and along suture to elytral apex, with a triangular yellowish brown to white spot behind middle, with an inverted “V” white spot near apex ( Fig. 87 ); marginal angles black ( Fig. 92 ), sparsely covered with short white pubescence basally and long black hairs ( Fig. 87 ). Ventral surface moderately covered with dense and small brown spots, some spots with a short black hair in center, ventrite V sparsely covered with longer black and brown hairs apically ( Fig. 88 ). Tarsal segments III, apices of tarsal segments I and II dark brown ( Fig. 87 ).

Last segments of maxillary palp and labial palp broad and flat, truncate apically ( Fig. 90 ); frons with a narrow and mesial line extending from the base of clypeus up to the apical margin of the pronotum ( Figs 87 & 91 ); lower eye lobe semi-oval and longer than gena ( Figs 89 & 91 ); antennae 1.2–1.3 times as long as body, antennomere III longer than scape and nearly as long as IV; antennomeres V–VII subequal in length, antennomeres VIII–XI subequal in length. Scutellum rounded or nearly truncate apically. Pronotum nearly as long as broad. Elytra distinctly broader than prothorax basally, 2.8–2.9 times as long as broad; disc moderately covered with dense and coarse punctures at basal 3/4, the punctures sparser and finer posteriorly, disappearing near apex; marginal angles strongly horn shaped. Apex of ventrite V with a curved notch in middle. Hind legs extending beyond the elytral apex ( Figs 87 & 88 ), metatarsal segment I shorter than II and III combined.

Male terminalia. Tergite VIII ( Figs 94 & 95 ) sparsely covered with short and fine brown setae apically, with 6 long and thick black setae apically; disc short, nearly as long as wide, truncated apically. Sternite VIII ( Figs 94 & 95 ) sparsely covered with short brown setae at apical half, broader than long, slightly with a notch apically; spiculum relictum nearly as long as sternite VIII. Spiculum gastrale ( Figs 94 & 95 ) Y-shaped, slender, distinctly longer than sternite VIII.

Aedeagus. Tegmen ( Figs 96–98 ) curved, shorter than penis; parameres sparsely covered with short and fine brown setae apically, with several long and thick dark brown setae apically, ventral surface sparsely with short and fine brown setae at base; phallobase more than 3.0 times as long as parameres, abruptly expanded near apical 1/4, and gradually constricted towards base. Penis ( Figs 99–101 ) curved and thick in profile, paralleled (except for apex and dorsal struts); dorsal struts short, nearly 1/3 as long as penis, weakly curved in profile; dorsal plate rounded apically; ventral plate distinctly longer than dorsal plate, rounded apically.

Female. Length: 14.5–15.5 mm; humeral width: 4.0 mm. Last segments of maxillary palp and labial palp conical at apical half ( Fig. 105 ). Antennae 1.1 times as long as body. Elytra 2.8 times as long as broad.

Diagnosis. This new species is very close to E. motuoensis , but it can be distinguished from E. motuoensis by the following characters: body more elongate, basal half of antennomeres V–XI pale yellow, elytra without reticulate texture ( Figs 92 & 93 ); tergite VIII covered with long and thick black setae apically more than E. motuoensis ( Fig. 94 ).

Etymology. This new species is dedicated to Prof. Shun-Xiang Ren (South China Agricultural University, Guangzhou, China) for presenting many precious specimens for this research.

Type specimens examined. Holotype: male ( SWUC), China: Bapo to Maku, Dulongjiang, Gongshan, Yunnan, alt. 1450m, 29. VII. 2010, Xiao-Sheng Chen, Xing-Min Wang, Wen-Jing Li & Li-Zhi Huo leg. Paratypes: 1 male ( SWUC), same data as holotype; 1 male (SWUC-Co- 01-03-00 -00-00-456), China: Honghe, Yunnan, 8. VI. 2009, Bo Feng leg.; 1 female (SWUC-Co- 01-03-00 -00-00-566), China: Didangzheng, Dulongjiang, Gongshan, Yunnan, alt. 1850m, 23. VII. 2010, Xiao-Sheng Chen, Xing-Min Wang, Wen-Jing Li & Li-Zhi Huo leg.; 1 female ( SWUC), China: Pianma, Lushui, Yunnan, alt. 2100–2300m, 10. VIII. 2010, Xiao-Sheng Chen, Xing-Min Wang, Wen-Jing Li & Li-Zhi Huo leg.

Distribution. China: Yunnan (Gongshan, Honghe, Lushui).

Figures

FIGURES 87 – 91. Euseboides reni sp. nov. holotype, male. 87. dorsal view; 88. ventral view; 89. lateral view; 90. mandibles and palps; 91. frons. Scale bars A = 5 mm, B = 1 mm.

FIGURES 92 & 93. Euseboides reni sp. nov. holotype, male. Elytra, ventral view. Scale bars = 1 mm.

FIGURES 94 – 98. Euseboides reni sp. nov. paratype, male. 94. & 95. terminalia: 94. dorsal view, 95. ventral view; 96 – 98. aedeagus: tegmen, 96. dorsal view, 97. ventral view, 98. lateral view. Scale bars = 1 mm.

FIGURES 99 – 101. Euseboides reni sp. nov. paratype, male. Aedeagus: penis, 99. dorsal view, 100. ventral view, 101. lateral view. Scale bars = 1 mm.

FIGURES 102 – 106. Euseboides reni sp. nov. paratype, female. 102. dorsal view; 103. ventral view; 104. lateral view; 105. mandibles and palps; 106. frons. Scale bars A = 5 mm, B = 1 mm.