Henricohahnia parva Zhao, Wang & Cai

Zhao, Ping, Wang, Jianyun & Cai, Wanzhi, 2014, Description of a new species of the genus Henricohahnia Breddin (Hemiptera: Heteroptera: Reduviidae: Harpactorinae) from China, with a key to Chinese species, Zootaxa 3811 (3), pp. 367-373 : 368-373

Henricohahnia parva Zhao, Wang & Cai , sp. nov.

( Figs. 1–21 )

Description. Colour. Body dorsally dark yellowish brown and ventrally pale yellowish brown; dorsal surface of head (except anterior part of anterior lobe paler), anterior pronotal lobe (except hairless area paler), mesopleuron, second and third connexival segments, basal half of fourth to seventh connexival segments blackish brown to black. First antennal segment blackish brown to black, second to fourth segments pale brown to brown; rostrum light yellowish brown, apical half of third rostral segment black. Lateral and ventral surface of thorax creamy white to light yellowish brown (except mesopleuron); coxa light yellowish brown, external markings black; femur dorsally darker and ventrally paler; tibia and tarsus pale yellowish brown, sub-basal part and subapical annulation on hind tibia darker. Abdomen pale reddish brown to light brown, middle longitudinal part paler; corium blackish brown to black, apical angle paler, apical part of vein R, basal markings of vein M and vein Cu of external cell creamy white to pale yellowish brown; membrane of fore wing light brown, semitransparent.

Structure. Body clothed with adpressed bent short yellowish setae; first antennal segment with setigerous tubercles (Figs. 7, 8), second to fourth segments sparsely with long oblique setae, apical half of fourth segment and apical 1/3 of third segment densely pubescent in female, second to fourth segments densely pubescent in male; legs with yellowish oblique setae. First antennal segment somewhat thickened and slightly bent outsides, second segment slightly longer than third ( Fig. 1 ); clypeus anteriorly produced, angular, compressed, acute apically, and nearly extending to middle part of first antennal segment, its margin with many setigerous tubercles ( Figs. 1 , 2–4); anteocular part shorter than posterior, each side of head beneath laterally with 4 small conical setigerous tubercles FIGURES 2–10. Henricohahnia parva sp. nov., 2, 3, 5, 8, 10, ♀; 4, 6, 7, 9, ♂. 2, head and pronotum, antennae removed; 3, 4, anterior part of head, antennae removed; 5, 6, abdomen; 7, 8, first and second antennal segments; 9, 10, lateral pronotal angle. 9, 10, dorsal view; 5, 6, ventral view; 2–4, 7, 8, lateral view. Scale bar of 2, 5, 6 = 1.54 mm; of 3, 4, 7–10 = 1 mm.

(Fig. 2). Anterior pronotal lobe and lateral pronotal angles with few small conical setigerous tubercles, lateral angles somewhat laterally produced ( Figs. 1 , 9, 10); hemelytra extending to tip of abdomen. Abdomen somewhat rhombus-shaped, and lateral margins nearly straight ( Figs. 1 , 5, 6). Pygophore without median process, posterior margin round ( Figs. 13–15 ); clasper small, slightly curved ( Figs. 14, 16 ). Basal plate of phallus thick ( Fig. 19 ); apical part of dorsal phallotheca sclerite round and slightly warped upward ( Figs. 17, 19, 20 ); struts slender and extending to subapical part of dorsal phallotheca sclerite ( Figs. 17, 20 ); middle conjunctiva process nearly trapezoidal ( Fig. 21 ); terminal part of abdomen of female as shown in Fig. 12 .

Measurements [in mm, ♂ (n=1)/♀ (n=3)]. Body length 9.86/10.86–10.92; maximal width of abdomen 2.80/ 4.05–4.06. Head length 2.46/2.73–2.83; anteocular part length 0.87/1.17–1.20; postocular part length 1.20/1.27; synthlipsis length 0.57/0.63; interocellar space 0.35/0.37–0.40; antennal segments length I–IV=1.00/1.07–1.13, 1.33/1.30–1.33, 1.10/1.23–1.33, 0.60/0.58–0.60; rostral segments length I–III=0.57/0.67–0.70, 1.13/1.30–1.33, 0.37/0.40; anterior lobe of pronotum length 0.93/1.03–1.07; posterior lobe of pronotum length 1.16/1.27–1.53; maximal thorax width 2.93/3.13–3.20; scutellum length 0.57/0.63–0.67; hemelytron length 5.76/6.33.

Type material. Holotype, ♀, China, Yunnan Province, Puer City, Yixiang Town, Yunpan Mountain, 3.V.2013, Huang Guiqiang leg. Paratypes, 1♂, 2♀, same as holotype.

Distribution. China (Yunnan).

Etymology. The specific name refers to the small body size of the new species.

Remarks. The new species is very similar to Henricohahnia cauta Miller 1954 in the general body plan, but the former is small-sized about 10 mm long, and the posterior margin of pygophore is round without a median process (vs. in H. cauta Miller 1954 , the body length is over 11.4 mm in males and over 13 mm in females, and the posterior margin of pygophore with a small median process). All the Chinese species of Henricohahnia can be distinguished with the above key.

Biological information. The new species stays on the flowers of beech tree, Lithocarpus spp. ( Fagaceae ), during daytime in April to June. They often hide among the flowers of the beech tree and probably prey on the flower visiting insects, such as small longicorn beetles, bees and so on. Owing to the so high beech tree, the collectors must use a 9-meter-long insect net to catch them ( Fig. 22 ).

Figures

FIGURE 1. Henricohahnia parva sp. nov., ♀, habitus. Scale bar of 1 = 2.50 mm.

FIGURES 11 – 21. Henricohahnia parva sp. nov., 11, 12, ♀; 13 – 21, ♂. 11, fore leg; 12, apical part of abdomen; 13 – 15, pygophore; 16, paramere; 17 – 19, phallus; 20, dorsal phallotheca sclerite and struts; 21, middle process of conjunctive. 17, 20, 21, dorsal view; 12, 13, 18, ventral view; 11, 14, 16, 19, lateral view; 15, caudal view. Scale bar of 11 = 1.54 mm; of 12 = 1 mm; of 13 – 15 = 0.67 mm; of 16 – 21 = 0.5 mm.

FIGURE 22. The habitat and collecting method of Henricohahnia parvus sp. nov. in Yunpan Mountain, Puer, Yunnan, China.