Yemmatropis hsiaoi Cai & Bu

Cai, Bo & Bu, Wenjun, 2011, A review of Yemmatropis (Hemiptera: Lygaeoidea: Berytidae), with descriptions of two new species from China, Zootaxa 2808, pp. 41-48 : 42-43

Yemmatropis hsiaoi Cai & Bu , sp. nov.

( Figs. 1 D; 2C; 3C, G)

Diagnosis. Yemmatropis hsiaoi sp. nov. is distinguished from Y. dispar by the black apical 1/4 of clypeus ( Fig. 2 C), the blunt lateral projection of male genital capsule ( Fig. 3C ), and the bluntly broad inner projection of paramere ( Fig. 3 G); from Y. erectus by the largely pale brown clypeus with only the apical 1/4 black and the incomplete woolly band behind the eye ( Fig. 2 C), the short, prostrate scutellar spine ( Fig. 1 D), the round apex of cuplike sclerite of male genital capsule ( Fig. 3C ), and the slender relatively blade of paramere ( Fig. 3 G); from Y. nigrovittatus sp. nov. by the incomplete woolly band behind the eye ( Fig. 2 C), pale brown punctures on pronotum dorsally, and the darker brown apex of frons, bands from antennal bases to suture of anterior lobe of head, and area around ocelli ( Fig. 1 D), the blunt lateral projection of male genital capsule ( Fig. 3C ), and the bluntly broad inner projection of paramere ( Fig. 3 G).

Description. Male (n = 9). Length 7.24–7.76 mm, width across hemelytra 0.98–1.10 mm. General coloration pale brown, with ventral surfaces of head and thorax black. Head ( Figs. 1 D; 2C): length 0.78–0.86 mm, width 0.60–0.66 mm; pale brown dorsally, except darker brown on apex of frons, bands from antennal bases to suture of anterior lobe, and area around ocelli; black on ventral from midline of eye including lorum and apical 1/4 of clypeus, and dark brown on lateral of clypeus; narrow bands of woolly setae extending from base of head to middle of eye around ventral margin of eye to lorum (covering dorsal 1/3 of lorum), from ocellus along suture of posterior lobe to connect lateral band, and across anterior margin of frons between antennal bases. Rostrum: length 2.46– 2.68 mm, extending just beyond metacoxae to abdominal segment II. Antenna: segment I, length 4.95–5.20 mm; II, 2.20–2.35 mm; III, 3.15–3.28 mm; IV, 0.93–1.08 mm; segments I–III pale brown to dark brown, segment I with numerous distinct, dark brown spots; segment IV fusiform, black, apical 1/5 pale yellow. Pronotum ( Figs. 1 D; 2C): length 0.93–1.08 mm, maximum width 0.86–0.92 mm; deeply and uniformly punctuate except for impunctate calli, pale brown except for shiny black quadrate area above and anterior to proacetabula. Scutellar spine ( Fig. 1 D): short, prostrate, length 0.20–0.26 mm. Hemelytron: pale brown, weakly tinged and streaked with darker brown. Ventral surface: abdomen pale brown except for shiny black, grooved segment II; largely glabrous except for narrow band of woolly setae along rostral groove and posterior and lateral margins of segment II; thoracic surface shiny black, with narrow bands of woolly setae bordering rostral groove and margins of pronotum. External scent efferent system: evaporatorium limited to metapleuron, dark gray, scent channel black; erect part of spout pale yellow. Legs: pale brown; femora with numerous dark brown spots, some coalescent to form larger spots, clavate apices darker brown; tibiae pale brown, with scattered, indistinct dark brown spots; tarsi brown; claws black. Femoral lengths: profemur 3.20–3.36 mm; mesofemur 3.50–3.85 mm; metafemur 5.61–5.92 mm. Tibial lengths: protibia 3.65–3.80 mm; mesotibia 4.01–4.30 mm; metatibia 7.28–7.44 mm. Opening of male genital capsule and paramere as shown in Fig. 3C , G.

Female (n = 10). Length 8.19–8.88 mm, width across hemelytra 1.24–1.36 mm. Head: length 0.82–0.90 mm, width 0.65–0.74 mm. Rostrum: length 2.70–2.86 mm. Antenna: segment I, length 5.04–5.24 mm; II, 2.08–2.28 mm; III, 3.00– 3.20 mm; IV, 0.94–1.00 mm. Pronotum: length 1.28–1.57 mm, maximum width 0.94–1.08 mm. Scutellar spine: length 0.22–0.26 mm. Femoral lengths: profemur 3.28–3.44 mm; mesofemur 3.84–4.12 mm; metafemur 8.75–9.50 mm. Tibial lengths: profemur 3.84–3.92 mm; mesofemur 4.08–4.32 mm; metafemur 11.38– 12.50 mm. Similar to male in color and pubescence.

Etymology. Named after the late Prof. Tsai-Yu Hsiao for his contribution to studies of Yemmatropis .

Host plant. Unknown.

Distribution. China (Yunnan).

Type material. Holotype: male, China: Yunnan: Tiantai Mountain (N25.40°, E98.71°), Shaba, Jietou, Baoshan, Yunnan, 12.v.2009, 1850 m, Bo Cai leg. Paratypes: China: Yunnan: 3 males, 6 females, ibid.; 3 males, 2 females, Tiantai Mountain (N24.40° –25.40°, E98.71° –98.73°), Shaba, Jietou, Baoshan, Yunnan, 13.v.2009, 2005– 2279 m, Bo Cai leg.; 4 males, 3 females, Zhengding, Tengchong, Yunnan, 3.x.2002, 1800–2000 m, Huaijun Xue leg.; 3 males, ibid., 4.x.2002, 1800–1900 m, Huaijun Xue leg.; 1 male, 6 females, Jinshan Lookout Tower (N24.63° –25.64°, E97.63° –97.62°), Tongbiguan, Yingjiang, Dehong, Yunnan, 19.v.2009. 1530– 1790 m, Bo Cai leg.; 5 females, Tongbiguan, Yingjiang, Dehong, Yunnan, 19.v.2009, 1531– 1790 m, Min Li leg.; 2 females, Natural Park of Gaoligong Mountain, Lujiang, Baoshan, Yunnan, 10.v.2009, 2200 m, Bo Cai leg.; 1 female, Baihualing, Baoshan, Yunnan, 14.viii.2006, 1700 m, Weibing Zhu leg.; 1 female, Tengchong, Yunnan, 8.viii.2006, 1650 m, Zhonghua Fan leg.; 1 male, Tengchong National Forest Park, Tengchong, Yunnan, 6.viii.2006, 1800 m, Hua Guo leg.

Figures

FIGURE 1. Photographs of head and thorax in dorsal view. (A) Yemmatropis dispar (Hsiao, 1974), female; (B) Y. erectus Henry, 2002, male; (C) Y. erectus Henry, 2002, male, showing the long erect scutellar spine. (D) Y. hsiaoi sp. nov., male; (E) Y. nigrovittatus sp. nov., male. (F) Y. nigrovittatus sp. nov., male, showing the short, reclining scutellar spine, which is similar to Y. dispar and Y. hsiaoi sp. nov. Each scale bar equals 1 mm.

FIGURE 2. Photographs of head and thorax in lateral view. (A) Yemmatropis dispar (Hsiao, 1974), female; (B) Y. erectus Henry, 2002, male; (C) Y. hsiaoi sp. nov., male; (D) Y. nigrovittatus sp. nov., male. Each scale bar equals 0.5 mm.

FIGURE 3. A – D: Opening of male genital capsule. (A) Yemmatropis dispar (Hsiao, 1974); (B) Y. erectus Henry, 2002; (C) Y. hsiaoi sp. nov.; (D) Y. nigrovittatus sp. nov.; pilosity omitted. E – H: Paramere. (E) Y. dispar (Hsiao, 1974); (F) Y. erectus Henry, 2002; (G). Y. hsiaoi sp. nov.; (H) Y. nigrovittatus sp. nov. Each scale bar equals 0.1 mm.