Stipesoculus productus Bai, Wu & Cai, 2007

Bai, Xiaoshuan, Wu, Zhiyi & Cai, Wanzhi, 2007, Unprecedented interweaving of single-helical and unequal double-helical chains into chiral metal – organic open frameworks with multiwalled tubular structures, Zootaxa 1562, pp. 55-61 : 57-58

Stipesoculus productus Bai, Wu & Cai sp. nov. ( Figs. 1–14 )

Description. Color: Body reddish brown to blackish brown. Eyes reddish.

Structure: Head, thoracic tergites and pleura, scutellum, most of abdominal tergites, connexiva, lateral plates of third to sixth abdominal sterna, and pygophore covered with setiferous tubercles or pits. Antennae and legs covered with erect setae. Anterior process of head short, reaching to 1/2 of first antennal segment; gena exceeding clypeus and forming small notch at tip, lateral margins subparallel; antenniferous tubercles dentiform, divergent anteriorly; clypeus raised; vertex with two longitudinal narrow tuberculate ridges flanked by 2 (1+1) deep sulci ( Fig. 1 ); antennae 1.56 times as long as width across eyes; rostrum not reaching limits of rostral groove, rostral groove deep, narrow, closed posteriorly. Pronotum 2.91 times as wide as long at midline; disc with medial depression flanked by 2 (1+1) large lunate callous regions, latter interiorly semisurrounded by carina; laterad with 2 (1+1) prominent tubercles; posterior part transversely depressed just behind callus regions. Scutellum sloping posteriorly; lateral border slightly sinuate; disc with longitudinal carina from base to tip. Hemelytra granulate. Disc of metanotum with 2 (1+1) transverse sinuate carinae extending to subdistal parts of scutellum; submedial portions of tergum I irregularly carinate, forming reticular patterns, laterad with pits, posterior margins elevated, transverse, strongly sinuate, meeting at tip of scutellum. Legs slender, femora moderately inflated, tibiae cylindrical, nearly straight, preapical comb on fore tibia present, claws with thin pulvilli. Anterior margin of abdominal central dorsal plate medially strongly protruding to tip of scutellum, flanked by 2 (1+1) triangular parts of tergum II; lateral margins subparallel, posterior borders nearly straight; plate moderately raising medially as rhomboid ridge on tergum III, as strong elevation on IV, as pentagonal elevation depressed medially on V and as sloping ridge on VI; scent gland openings present; laterad of median ridge with usual pattern of glabrous areas marked by broad depressed plates, roughly punctured; sublateral glabrous areas reduced, separated from submedial areas by longitudinal carinae ( Figs. 1 , 2 ). Glabrous areas of connexiva as usual, plates with pits; posterolateral angles of deltg of male, II-IV slightly progressively protruding, V strongly protruding laterally, VI–VII protruding posterolaterally into broad lobes ( Figs. 1 , 5 ); of female, II–VII progressively protruding ( Figs. 3, 4 ). Tergum VII of male with transverse arcuate elevation; of female, with 2 longitudinal carinae. Paratergites VIII of male clavate, reaching to 4/5 of pygophore; of female, dentiform, almost reaching to tip of tergum IX. Prosternum with median elevation, separated from mesosternum by suture; meso- and metasterna flattened, with shallow longitudinal impression. Sterna III to VI with triangular, smooth spots medially, flanked by 2 (1+1) large, triangular shallow depressions, these bearing 2 (1+1) round callous spots; more laterad 4 (2+2) smaller round callous spots; sternum VII of male raising, smooth, with 2 (1+1) ovate depressions ( Fig. 5 ). Spiracles II–VII ventral, remote from lateral margin, VIII of male sublateral and not visible from above; of female, lateral and visible from above. Pygophore cordate, triangular deep impression at middle extending posteriorly ( Figs. 1 , 6, 7 ). Parameres as in Figs. 8–10 . Basal plate thick ( Figs. 11, 12 ). Capitate process ovate ( Figs. 11–14 ). Strut large ( Figs. 11, 12 ). Phallosoma and vesica as in Figs. 13, 14 . Terminal part of abdomen of female as in Figs. 3, 4 .

Measurements [in mm, ♂ (n=5)/ ♀ (n=2), holotype in parentheses]. Body length 8.1–8.7/10.0–10.47 (8.1); maximal width of abdomen 4.0–4.2/4.7–4.91 (4.16). Length head 1.49–1.68/1.68–1.78 (1.58); width 2.02– 2.26/2.16–2.40 (2.16). Length pronotum 0.72–0.86/0.76–0.86 (0.76); width 2.16–2.49/2.44–2.78 (2.44). Length scutellum 1.15–1.30/1.39–1.44 (1.15); width 1.73–1.97/2.06–2.11 (1.77). Length antennal segments I–IV = 0.91–1.05, 0.62–0.67, 0.96–1.10, 0.58–0.67/1.05–1.15, 0.72–0.77, 1.05–1.20, 0.67 (0.96, 0.67, 1.05, 0.67).

Type material: Holotype: ♂, China, Guangxi, Jinxiou , 14. VI. 1982, X. L. Wang leg. ( CAU) . Paratype: 4♂, 2♀, same data as for holotype ( CAU) .

Etymology: The specific name refers to its lateral margins of pronotum produced.

Distribution: China (Guangxi).

Figures

FIGURE 1. Stipesoculus productus sp. nov. ♂, Holotype. Habitus. Scale bar = 1 mm.

FIGURES 2–14. Stipesoculus productus sp. nov. 2, 5–14, ♂; 3, 4, ♀. 2, Habitus, antennae and legs partly removed; 3, 4, 5, abdominal segments V–VIII; 6, 7, pygophore; 8, 9, 10, right paramere; 11, 12, phallus and basal structure; 13, 14, phallosoma and vesica. 2, 7, 10, 12, lateral view; 3, 6, 8, 13, dorsal view; 5, 4, 9, 11, 14, ventral view. Scale bar of 2–5 = 1 mm; of 6–7 = 0.5 mm; of 8–14 = 0.25 mm.