Barcinus bhoutanensis Usinger & Matsuda

Bai, Xiaoshuan, Heiss, Ernst & Cai, Wanzhi, 2006, Notes on the genus Barcinus Stål 1873 (Heteroptera: Aradidae) from China, with the description of a new species, Zootaxa 1317, pp. 49-56 : 51-52

1. Barcinus bhoutanensis Usinger & Matsuda

( Fig. 1 )

Barcinus bhoutanensis Usinger & Matsuda 1959: 277 , 281; Kormilev & Froeschner 1987: 111; Hua 2001: 194.

Redescription of female. Color: Body yellow brown to black. Most of head above, first antennal segment, rostrum, dorsal surface of pronotum, clavus and corium, posterolateral angles of connexiva II–V, deltg VI, most of deltg VII, most of abdomen beneath yellowish brown. Glabrous regions of abdomen yellowish. Scutellum, annulation on tibiae and paratergites of VIII reddish brown. Membrane dark brown. Head beneath, second to fourth antennal segments (except apex of fourth segment), thoracic sterna, femora, deltg II–V, seventh to ninth abdominal segments, sides of third to sixth abdominal sterna blackish brown to black.

Structure: Head, pronotal pleura, first antennal segment covered with long adpressed setae. Head longer than wide across eyes; genae relatively short, reaching basal one­third of first antennal segment; clypeus narrow, reaching posteriorly to a horizontal line across posterior margin of eyes. Antenniferous tubercles short, apices acute, divergent anteriorly. Surface of head with 2 (1+1) longitudinal patches of setae; vertex laterally defined by a narrow smooth impression, posterior part of vertex with transverse furrow. Preocular spines absent; postocular spines directed posterolaterally, densely clothed with setae, with a conspicuous bundle of setae arising from tip. Eyes medium­sized, protruding laterally; infraocular patches of setae reaching to hind margin of head. Antennae 3.4 times as long as head width; first segment cylindrical, feebly bent at middle; second and third slender, constricted at middle, third segment pendunculate at base; fourth segment fusiform, pilose at apex. Rostral groove deep and opened posteriorly. Pronotum 2.3 times as wide as long, with two lamellae on each side; collar narrow, distinct; anterior lobes simple, subtetragonal, acute at tip, expanded anterolaterally; posterior lobes rounded, directed anteriorly; paranota converging posteriorly to humeral angles; posterior margin of pronotum slightly trisinuate; disk with 8 (4+4) small callosities on anterior part, surrounded by small tubercles; posterior part dispersely granulate, elevated posteriorly, deeply depressed behind median callosities. Scutellum wider than long, with elevated lateral margins, sinuate behind middle, apex feebly notched at middle; disk longitudinally elevated at middle, posterior part of disk with distinct transverse impressions. Hemelytron with clavus well exposed on either side of scutellum; outer margins of corium elevated, with setae, reaching posterior margin of deltg II; veins of corium clothed with short setae; membrane fully developed, with distinct veins. Apex of each femur with dentiform projection; tibia slender; claws with setiform pulvilli. Posterolateral angles of deltg II–V progressively projecting, deltg VI–VII expanded posteriorly into broad lobes; paratergite VIII large, lobulate. Spiracle II absent, III– VII ventral, remote from lateral margin, VIII lateral and visible from above. Terminal part of abdomen as in Fig. 1 .

Measurements [in mm, Ψ (n=1)]. Body length 13.06; maximum width of abdomen 7.71. Head length 2.34; head width 2.08. Pronotum length 2.23; pronotum width 5.2. Scutellum length 1.77; scutellum width 2.65. Length of antennal segments I–IV = 2.34, 1.09, 2.76, 0.88.

Material examined: 1 Ψ, China, Xizang (Tibet), Motuo, 14.VIII.2003. G. D. Ren leg. ( HBUM).

Distribution: China (Xizang); Bhoutan.

Figures

FIGURE 1. Barcinus bhoutanensis Usinger & Matsuda, Ψ. Habitus. Scale bar = 1.67 mm.