Agapophyta kmenti, Magnien & Jindra, 2018

Magnien, Philippe & Jindra, Zdeněk, 2018, A new species of Agapophyta Guérin-Meneville, 1828 from the Tanimbar Islands, Indonesia (Hemiptera: Heteroptera: Tessaratomidae: Oncomerinae), Zootaxa 4504 (4), pp. 595-600 : 596-599

Agapophyta kmenti sp. nov.

Type material. Holotype: ♂, ‘ Indonesia. Tanimbar Islands / S. Yamdena Island / Mam’s Vill. 21 km NE of Saumlaki / S. Jakl lgt. December 2006 ’ [white, printed] // ‘ex collectio / Z. Jindra. Prague’ [white, printed] // ‘ Agapophyta kmenti / Holotype / Ph. Magnien & Z. Jindra des.’ [red, printed] ( ZJPC). The holotype is pinned, dissected, genitalia stored in glycerol in a microvial attached to the same pin .

Paratypes: 17 ♂♂ 4 ♀♀, the same data as holotype (1 ♂ NMPC ; 1 ♂ 1 ♀ MNHN; 13 ♂♂ 2♀ ZJPC; 2 ♂♂ 1 ♀ ( PMPF).

Diagnosis. Agapophyta kmenti sp. nov. is best diagnosed by its small size (less than 15 mm for males, 17 mm for females), and its color uniformely yellow-brownish, including paratergites and pygophore, save for the abdominal serrations and the apical teeth of the pygophore, blackened at the apex.

Description. Habitus (♂ — Fig. 1 , ♀ — Fig. 2 ): entirely yellow-brown, except for two black spots at the curve of the medial vein of the corium, and the apex of the marginal serration of the abdomen, also blackened; body slender, about two times as long as wide.

Head triangular, mandibular plates sligthly concave, about twice as long as the clypeus; antennae 4-segmented, long, first segment with a hump on the ventral side, surpassing the apex of head, second and third subequal in length, fourth sligthly smaller; ocelli small; rostrum surpassing the anterior coxae and nearly reaching the middle of mesosternum.

Thorax: Pronotum hexagonal, anterior margin concave, lateral margins acute and slightly convex, posterior margin concave; callosities small; punctation dense, uneven, giving a reticular aspect to the anterior area. Scutellum long, about 1.5 times longer than wide, with a distinct longitudinal furrow on the posterior half, apical notch deep and acute. Mesosternum with an elevated forked plate between the coxae, level with and contiguous to the anterior expansion of the 3rd abdominal sternite. The large evaporatorium ( Fig 11 ) is very close to the one described in Kment & Vilímová (2010), as A. bipunctata. The ostiole is long, with a spout slightly curved anteriad, elevated above surrounding pleuron, its apex rounded and free. Metathoracic spiracle very long and narrow. Hemelytron sligthly longer than abdomen, leaving the abdominal margin visible; suture between corium and membrane bisinuate, strongly angular.

Abdomen: Abdominal margins serrate, apices of teeth black; spiracles almost equidistant from the margin and the midline of sternites, on sternites III–VII a pair of trichobothria posteriad to the spiracle, on the other side of the pseudosuture (i.e., the transverse lateral muscle scar).

Male genitalia: posterior processi of pygophore large ( Fig. 7 ), regularly curved outwards, sligthly angular on the inside, apex rounded with 8–10 small black teeth; inferior processus with two diverging hooks ( Fig. 8 ), blackened at the apex. Parameres ( Fig. 6 ) digitiform in dorsal view, somewhat dilated in lateral view with hairs at the apex and on the inferior side. Phallus ( Fig. 3 ) long, weakly sclerotized, with a pair of small antero-lateral processes, bearing a small lateral expansion in the basic half, ejaculatory reservoir fitted with a strongly sclerotized forked process ( Fig. 5 ), ductus seminis ( Fig. 4 ) weakly sclerotized, coiled inside the vesica.

Female genitalia: external genitalia ( Fig. 10 ) with laterotergites IX completely fused ventrally; spermatheca ( Fig. 9 ) of the common type in this genus, with a dilated posterior ductus, a thin and relatively short anterior duct, intermediate part with two flanges, receptacle ovoid, directly connected to the intermediate part, posterior duct 5–6 times longer than anterior duct.

Measurements (mm). Males (n = 4), mean (min–max): length 14.0 (13.2–14.7); width 6.3 (6.1–6.6); pronotum width 6.3 (6.1–6.5); antenna length 9.2 (8.9–9.5); mean length of antennomeres: A1—0.8, A2—2.9, A3—2.9, A4—2.6.

Females (n = 4), mean (min–max): length 15.5 (14.2–16.5); width 7.5 (6.9–7.9); pronotum width 7.3 (7.5–7.6); antenna length 9.5 (9.2–9.6); mean length of antennomeres: A1—0.7, A2—3.0, A3—3.1, A4—2.6.

Differential diagnosis. Agapophyta kmenti sp. nov. belongs to a group of species characterized by the shape of the inferior processus of the pygophore, consisting of two hooks separated by a U- or V-shaped indentation ( Figs. 7, 15-16 ). Up to now, this group consists of two described species from Maluku Province, A. aurantiaca Blöte, 1945 (Kay Islands) and A. boschmai Blöte, 1945 (Aru Islands). The Australian species also belongs to the same group, it has been illustrated by Kment & Vilímová (2010) under the traditionally applied name A. bipunctata (cf. Rolston et al. 1994, Cassis & Gross 2002). However, the true A. bipunctata is known only from New Ireland and northen New Britain ( Magnien & Pluot-Sigwalt 2013), the identity of this species is still waiting for clarification. As Blöte (1945) described his two species from males only, as we have not seen any females coming from the same islands, the discussion will be restricted to comparison between the males. The distinguishing characters are summarized in Table 1. The most obvious to distinguish the three species are the coloration of the body, reddish fot A. aurantiaca , pale yellowish or brownish for the two others, and the colour of the upper side of the pygophore, black for A. boschmai , pale for the two others.

Note: The type of A. boschmai has incomplete antenna, so the ratio is extrapolated from the length of the first three antenomeres of the right antenna.

Etymology. This species is dedicated to our friend and colleague Petr Kment, in recognition of the tremendous work he has done for the study of Heteroptera , and the great help he has given to our own studies.

Distribution. The species is known only from the typical locality, Yamdena, the largest of the Tanimbar Islands in the Maluku Province of Indonesia.

Figures

FIGURES 1–2. Agapophyta kmenti sp. nov., habitus. 1—male; 2—female. Scale 5 mm.

FIGURES 3–16. 3–11: Agapophyta kmenti sp. nov.; 12–15: A. aurantiaca Blöte, 1945; 16—A. boschmai Blöte, 1945. 3, 12— phallus (lateral view, in fig 3 the vesica is completely extended, in fig. 12 it is folded after the apex of ejaculatory reservoir); 4—vesica (lateral view); 5, 13—ejaculatory reservoir (dorsal view); 6, 14—paramere; 7, 15—pygophore (dorsal view); 8— detail of inferior processus (lateral view); 9—spermatheca; 10—external genitalia (ventral view); 11—evaporatorium; 16— apex of pygophore (dorsal view, the type have not been dissected, only the part protruding from the abdomen apex is displayed). Abbreviations: alp—antero-latersal conjunctival process; dd—distal ductus; ds—ductus seminis; ef—evaporatrial field; er—ejaculatory reservoir; ipp—inferior processus of pygophore; ms—metasternal spiracle; os—ostiole; pd—proximal ductus; pi—intermediate part; pp—posterior processus; pf—pygophore; r—receptacle. Scale: 3, 7, 9–11, 12, 15, 16: 1 mm; 4– 6, 13–14: 0.5 mm.