Xenocylapidius ater Wolski & Gorczyca

Wolski, Andrzej & Gorczyca, Jacek, 2014, Revision of the plant bug genus Xenocylapidius (Hemiptera, Heteroptera, Miridae, Cylapinae), with descriptions of five new species from Australia and New Caledonia, ZooKeys 459, pp. 73-94 : 77-80

Taxon classification Animalia Hemiptera Miridae

Xenocylapidius ater Wolski & Gorczyca sp. n. Figures 2, 10, 21-25, 31

Diagnosis.

Recognized by the black dorsal coloration (Fig. 2); the antennal segment II with a yellow annulation apically (Figs 2, 10); the endosomal dextrolateral sclerite (DLS) nearly square on basal one third and triangular on apical two thirds (Fig. 21); the extreme apex of apical process of left paramere when viewed dorsally nearly conelike (Fig. 24); the sensory lobe (SL) of left paramere long, weakly arcuate in dorsal view (Fig. 24); and the right paramere with an apical process broadened with a narrow, nearly conelike process apically (Fig. 25).

Most similar to Xenocylapidius rolandi in sharing blackish dorsal coloration (Figs 2, 7). Xenocylapidius ater can, however, be easily distinguished by the lack of large white patches on hemelytron (Fig. 2), the coloration of antennal segment II (Figs 2, 10), and the shape of the male genitalia (Figs 21-25).

Description.

Male. COLORATION (Figs 2, 10). Dorsum mostly blackish with small yellow and dirty yellow areas. Head. Black with yellowish patches; vertex with two yellow patches each situated behind each eye and with additional two longitudinal, yellow patches, each bordering inner margin of each eye, vertex also with a small yellow patch medioapically; frons with two groups of several small, yellowish patches, each situated laterally, near inner margin of eye, frons also with a small, yellow patch medioapically, nearly bordering base of clypeus; clypeus with a short, longitudinal, yellow patch basally; mandibular fig with two small, yellow patches basally, each bordering base of clypeus; mandibular fig also with a yellow line along entire length of ventral margin; ventral surface of maxillary fig and dorsal surface of gula, bordering maxillary fig with a relatively large, yellow patch; gula with a relatively large, yellow patch bordering ventral margin of eye; antenna black except for contrasting yellow annulation at apical one fifth of antennal segment II; labium black with an indistinct, dirty yellowish annulation medially. Thorax.Pronotum. Black with a broad, dirty yellow mottling on pronotal calli. Mesoscutum and scutellum. Black. Thoracic pleura. Blackish. Hemelytron. Blackish; base of embolium with a small, yellow patch. Legs. Pro- and mesocoxae black; metacoxa dirty yellow; femora black; mesofemur with a small, dirty yellow patch subapically; metafemur with relatively broad, yellow annulation subapically; tarsi dirty yellow. Abdomen. Blackish with indistinct, dirty yellowish areas. STRUCTURE, TEXTURE, AND VESTITURE (Figs 2, 10). Antennal segment II weakly broadened toward apex, covered with moderately dense, adpressed and semirecumbent setae, sparse on basal one-fifth of segment II and dense on remainder of segment. Thorax.Pronotum. Lateral margins sharply carinate, somewhat elevated. Mesoscutum and scutellum. Scutellum weakly convex. Hemelytron. Covered with very short, relatively dense, adpressed, black setae.

Male genitalia.Aedeagus (Figs 21-22). Basal sac (BSC) occupying one third of endosoma; sclerotized portion of ductus seminis inside endosoma (DSS) stout, with sinuate margins; basal fig (BSC) nearly cylindrical, thin, and sinuate at basal two thirds, nearly rectangular at apical one third; dextrolateral sclerite (DLS) nearly square on basal one third and triangular on apical two thirds. Left paramere (Figs 23-24). Apical process: lateral view: nearly cylindrical, weakly constricted medially; dorsal view: weakly tapering toward apex; extreme apex nearly conelike; paramere body: lateral view: dorsal surface covered with dense, long, protruding setae; dorsal view: sensory lobe: long, weakly arcuate. Right paramere (Fig. 25). Apical process: broadened with a narrow, nearly conelike process apically; paramere body weakly arcuate, covered with sparse, long, protruding setae.

Measurements.

Holotype ♂: Body. Length 5.3, width 2.15. Head. Length 1.0, width 0.88, interocular distance 0.35. Antenna. Length of segment I 0.71, II 1.82, III 0.62, IV (missing). Labium. Length of segment I 0.87, II 1.43, III 0.85, IV 0.7. Pronotum. Length 0.82, width of anterior margin 0.75, length of lateral margin 1.00, width of posterior margin 1.75.

Female. Unknown.

Biology.

Unknown.

Distribution.

Australia (Western Australia) (Fig. 31).

Etymology.

The specific name is derived from the Latin “ater”, meaning black, and is used to denote the blackish dorsal coloration.

Type material.

Holotype ♂: Australia, WA 06/85, 30 km nnw. Leonora 28.61799S, 121.19967E, 441 m, 30.1.2006, M. Baehr (ZSM).