Physopelta (Neophysopelta) parvula, Stehlík, 2013

Stehlík, Jaroslav L., 2013, Review and reclassification of the Old World genus Physopelta (Hemiptera: Heteroptera: Largidae), Acta Entomologica Musei Nationalis Pragae 53 (2), pp. 505-584 : 536-539

Physopelta (Neophysopelta) parvula sp. nov.

( Fig. 38 )

Type locality. Vietnam, Thua Thien Province, Bach Ma National Park (16°12′N 107°52′E).

Type material. HOLOTYPE: 1 ♂, VIETNAM: THUA THIEN PROVINCE: ‘Coll. I.R.Sc. N.B. / Bach-Ma N. P. / 16°12′N 107°52′E / 12.–17.vii.2011, Night Collecting, / leg. Constant & J. Basseel / I.G. 31.933’ [p, yellow label] // ‘♂’ [p, small white label] // ‘Holo- / typus’ [p, red label with black frame submarginally] // ‘ Physopelta / parvula / sp. n. [hw, underlined] / det. J.L.Stehlík [p] 2012 [hw]’ [red label with black frame] (ISNB). Holotype is glued on white card, left antennomeres 2–4, left protarsus, and right metatarsus missing. PARATYPES: VIETNAM: QUANG TRI PROVINCE: 1 ♂, Da Krong Nat. R., 16°37′N 108°47′E, 5.–10.vii.2011, light trap, J. Constant & J. Brasseel lgt., I.G. 31.933 ( IRSB). VINH PHUC PROVINCE: 1 ♂ 1 ♀, Tam Dao N.P., 25.–28.viii.2010, light trap, J. Constant & Limbourg lgt., I.G. 31.668’ (1 ♂ in MMBC, 1 ♀ in IRSB).

Description. Colouration ( Fig. 38 ). Following body parts are black: antennae (except basal half of antennomere 4), head dorsally and ventrally, pronotum (except anterior, lateral, and posterior margins), scutellum, large round central spot and large triangular apical spot on corium, most of membrane (except base), labium, ventral surface of thorax and abdomen (except ventral laterotergites), and legs. Basal half of antennomere 4 whitish except very base which is narrowly black. Anterior, lateral, and narrowly also posterior margin of pronotum, pronotal epipleuron, costal margin of corium, corial surface between central and apical spots, and ventral and dorsal laterotergites, orange. Clavus and corium anteriorly of the central spot darkened. Basal spot on membrane grey.

Pilosity. Entire body covered with dense, black, semierect setae.

Punctation. Pronotal lobe, scutellum, clavus, and corium with distinct black punctures ( Fig. 38 ).

Structure. Body smaller, elongate-oval. Profemora apically on ventral surface with two large and one small teeth, and a series of small, slightly curved denticles along its entire length.

Measurements (in mm). Males (n = 3). Body length: 10.68 (10.53–10.75); head width (including eyes) 1.80 (1.78–1.84), interocular width 1.10 (1.08–1.11); lengths of antennomeres: 1 – 1.69 (1.67–1.73), 2 – 1.91 (1.89–1.94), 3 – 1.37 (1.35–1.40), 4 – 2.27 (2.27–2.27); pronotum: length 2.16 (2.11–2.21), width 3.42 (3.40–3.46); scutellum: length 1.67 (1.67–1.67), width 2.00 (1.94–2.11); corium: length 5.45 (5.18–5.62), width 1.78 (1.67–1.94).

Female (n = 1). Body length: 11.50; head width (including eyes) 1.94, interocular width 1.19; lengths of antennomeres: 1 – 1.89, 2 – 2.05, 3 – 1.51, 4 – 2.38; pronotum: length 2.32, width 3.73; scutellum: length 1.78, width 2.27; corium: length 5.79, width 1.94.

Differential diagnosis. Physopelta parvula sp. nov. strongly resembles Ph. cincticollis , but differs in having its callar lobe without a longitudinal median pale line (in Ph. cincticollis the callar lobe is medially divided by a pale line) and smaller size. For comparison, measurements of males and females of Ph. cincticollis are given here (in mm):

Male (n = 5). Body length: 10.43 (9.94–10.80); head width (including eyes) 1.84 (1.78–1.92), interocular width 1.12 (1.08–1.19); lengths of antennomeres: 1 – 1.72 (1.62–1.84), 2 – 1.91 (1.89–1.94), 3 – 1.35 (1.24–1.46), 4 – 2.23 (2.16–2.32); pronotum: length 2.15 (2.00–2.21), width 2.94 (2.28–3.40); scutellum: length 1.77 (1.67–1.89), width 2.19 (1.94–2.59); corium: length 5.57 (5.08–6.16), width 1.88 (1.78–2.00).

Female (n = 5). Body length: 12.00 (11.45–12.53); head width (including eyes) 2.00 (1.92–2.05), interocular width 1.16 (1.08–1.30); lengths of antennomeres: 1 – 1.96 (1.94– 2.05), 2 – 2.11 (2.00–2.16), 3 – 1.51 (1.46–1.57), 4 – 2.31 (2.11–2.59); pronotum: length 2.41 (2.32–2.54), width 3.99 (3.89–4.10); scutellum: length 1.93 (1.84–2.05), width 2.36 (2.21–2.54); corium: length 6.47 (6.37–6.64), width 2.23 (2.05–2.38).

Etymology. The species epithet is the Latin adjective parvulus, - a, - um, meaning little or petty.

Bionomics. The type specimens were collected in primary forests, specifically a subtropical moist evergreen low mountain forest in Tam Dao National Park, a tropical lowland forest on limestone in Da Krong National Park, and a moist evergreen tropical forest in Bach Ma National Park (J. Constant, pers. comm). Some of the specimens were collected at light.

Distribution. Northern and central Vietnam (this paper).

Figures

Figs 38–41. 38 – Physopelta (Neo- physopelta) parvula sp.nov., fema- le, paratype. 39–40 – Physopelta (Neophysopelta) redeii sp. nov., female, paratype. 41 – Physopelta (Neophysopelta) roseni Taeuber, 1927, male. (Photos: L. Dem- bický).