Vietnamaptera bogiessa Zhang, Bai, Heiss & Cai

Zhang, Wenjie, Bai, Xiaoshuan, Heiss, Ernst & Cai, Wanzhi, 2010, Vietnamaptera, a new genus of apterous Carventinae (Hemiptera: Aradidae) from Vietnam, Zootaxa 2530, pp. 60-64 : 62-64

Vietnamaptera bogiessa Zhang, Bai, Heiss & Cai , sp. n. ( Figs. 1–13 )

Description. Color: Body blackish. Eyes reddish.

Structure: Head, antennae, tubercles of thoracic tergites, posterior angles of deltg, legs and pygophore covered with stiff, curved bristles. Anterior process of head elongate, protruding beyond tip of first antennal segment; genae reaching to apex of clypeus, lateral margins constricted; clypeus longitudinally raised, with dorsal tubercles; antenniferous tubercles large, dentiform; vertex raised, flanked by 2 (1+1) large calli, medially with X-shaped grooves ( Fig. 1 ); antennae 1.04 times as long as width of head across eyes; third and forth segments of equal length, second segment shortest, first shorter than third segment, thickest and curved outward, second tapering toward base, third subcylindrical with petiolate base, fourth fusiform; rostrum reaching limits of rostral groove, the latter deep and wide, closed posteriorly. Pronotum 6.26 times as wide as length at midline, medial region with 2(1+1) short, longitudinal ridges almost reaching to posterior margin; posterior angles with 2 (1+1) large rounded humps; posterior margin sinuate, carinate, depressed medially; laterad of disc granulate. Mesonotum fused to metanotum and tergites I and II which are delimited by transverse grooves and furrows, medially elevated as a large, strong hump with a median longitudinal groove; laterad with 2 (1+1) round depressed sclerites; posterior angles with 2 (1+1) large rounded elevations. Lateral margins of metanotum with 2 (1+1) angulate humps. Legs slender, femora moderately inflated, tibiae cylindrical, nearly straight, preapical comb on fore tibiae present, claws with thin pulvilli. Tergite I with 2 (1+1) large raised humps, medially fused to tergite II, the latter with only a median raised hump posterior to the humps of tergite I. Anterior margin of abdominal tergal plate sinuate, lateral margins convergent, posterior margin straight; tergites III to VI completely fused and raised medially along tergites III-VI, strongly elevated on IV, sloping on V and VI; scent gland scars present; laterad of median hump with usual pattern of glabrous spots. Tergite VII with a transverse arcuate elevation, separated from the tergal plate by a deep groove. Connexiva with glabrous spots as usual with rugose surface; posterolateral angles of deltg of II-VI raised as round tubercles ( Figs. 1–2 ). Paratergites VIII of male clavate, reaching to 4/5 of pygophore. Prosternum with two median ridges, separated from mesosternum by suture; meso- and metasterna separated from each other by a suture. Sterna III to VI smooth, with usual pattern of glabrous spots, sternite VII slightly raised medially into a longitudinal ovate elevation, laterad with 2 (1+1) ovate elevations ( Fig. 4 ).Surface of ventral external laterosternites rugose, lateral margins of I to VII reflexed, progressively protruding and visible from above. Spiracles II to VII lateral and visible from above, VIII terminal. Pygophore cordate, raised medially into a Vshaped elevation extending posteriorly, with a longitudinal suture at middle ( Figs. 1 , 5–7 ). Parameres as in Figs. 8–10 . Basal plate thick. Capitate process ovate. Strut large ( Figs. 11–13 ).

Measurements [in mm]. Holotype: 3, length 6.5; maximal width of abdomen 3.75. Length head 1.31; width 1.47. Length pronotum 0.51; width 3.07. Length antennal segments I–IV = 0.38, 0.32, 0.42, 0.42.

Material examined: Holotype: 3, Vietnam, Laocai, Huronglien, Seamyty, N 22° 16.233 E 103°53.23, 1709 m; 9. VII. 2009, X. S. Bai leg ( CAU).

Etymology: The specific name refers to its habitats, bog land in forest.

Distribution: Vietnam (Laocai).

Figures

FIGURE 1. Vietnamaptera bogiessa sp. n. 3, Holotype. Habitus. Scale bar = 1 mm.

FIGURES 2 – 4. Vietnamaptera bogiessa sp. n. 2, Habitus, antennae and legs partly removed; 3, head; 4, abdominal segments V – VIII; 2, lateral view; 3, 4, ventral view. Abbreviations. pr = pronotum; ms = mesonotum; mt = metanotum; mtg = mediotergites III – VI (tergal plate). Scale bar for figs. 2, 4 = 1.66 mm; for fig. 3 = 1 mm.

FIGURES 5 – 13. Vietnamaptera bogiessa sp. n., Holotype. 5 – 7, Pygophore; 8 - 10, left paramere; 11 – 13, phallus and basal structure. 5, 9, 13, dorsal view; 6, 8, 11, ventral view; 7, 10, 12, lateral view. Scale bar for figs. 5 – 7 = 0.5 mm; for figs. 8 – 13 = 0.25 mm.