Xenocylapidius bimaculatus 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 : 80

Taxon classification Animalia Hemiptera Miridae

Xenocylapidius bimaculatus Wolski & Gorczyca sp. n. Figures 3, 12, 26-31

Diagnosis.

Recognized by the chocolate brown dorsum with two large whitish patches, each situated near base of the hemelytron (Fig. 3); the medial sclerite (MS) stout, large, occupying almost half of endosoma, tapering toward apex, sharply pointed (Fig. 26); the extreme apex of apical process of the left paramere weakly arcuate, nearly conelike (Fig. 24); the right paramere with an apical process ovoid, with a basal, small, obtuse process dextrolaterally and paramere body rather thin, nearly cylindrical, and very weakly arcuate at apical half, strongly broadened at basal half (Fig. 30).

Most similar to Xenocylapidius rolandi in sharing a large, pale patch near base of hemelytron (Figs 3, 7). The present new species can, however, be distinguished by the chocolate brown dorsum (Fig. 3) and the shape of the male genitalia (Figs 26-30).

Description.

Female. COLORATION (Figs 3, 11). Dorsum chocolate brown, with yellow areas. Head. Chocolate brown with whitish areas; posterior margin of vertex with two indistinct, dirty yellow patches, each situated mediolaterally, vertex also with two longitudinal, yellowish patches, each bordering inner margin of each eye and with a longitudinal, yellow stripe medially; frons with two yellow patches, each situated laterally and with yellow patch medioapically, bordering 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; gula with relatively large, yellow patch bordering ventral margin of eye; antennal segment I chocolate brown with a yellowish annulation near base; segment II dirty yellow to brown, apical one third dark brown; segments III and IV dark brown; labium yellow, with fuscous areas. Thorax.Pronotum. Chocolate brown, with indistinct yellow mottling on anterior half of calli and with indistinct yellow stripe medially, originating from middle of pronotal calli and ending at posterior margin. Mesoscutum and scutellum. Chocolate brown with a pale patch apically. Thoracic pleura. Chocolate brown. Hemelytron. Chocolate brown with indistinct yellowish shades and more or less developed whitish areas; embolium with a small whitish patch basally and apically; corium and embolium with a large, whitish patch near base; cuneus with a small yellow patch apically; membrane chocolate brown, membrane venation whitish. Legs. Procoxa chocolate; meso- and metacoxae yellow; profemur chocolate brown; protibia brownish; protarsus dirty yellow. Abdomen. Brown with yellow areas. STRUCTURE, TEXTURE, AND VESTITURE (Figs 3, 11). Head. Antennal segment II weakly broadened toward apex, covered sparse, adpressed 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 short, relatively dense, adpressed, black setae.

Male. Similar to female in coloration, structure, texture, and vestiture.

Male genitalia.Aedeagus (Figs 26-27). Basal sac (BSC) occupying one third of endosoma; apex of endosoma with a single bundle of spiculi (SP1); medial sclerite (MS) stout, large, occupying almost half of endosoma, tapering toward apex, sharply pointed. Left paramere (Figs 28-29). Apical process: lateral view: broadened basally, cylindrical at apical two-thirds, obtuse; dorsal view: lateral margins weakly sinuate; extreme apex weakly arcuate, nearly conelike; sensory lobe: smassive, just slightly arcuate, obtuse. Right paramere (Fig. 30). Apical process: ovoid, with a basal, small, obtuse process dextrolaterally; paramere body: rather thin, nearly cylindrical, and very weakly arcuate at apical half, strongly broadened at basal half, covered with a few long, protruding setae sinistrolaterally.

Measurements.

♀/♂ (n=3, holotype measurements in parentheses). Body. Length 4.30-4.70/4.00 (4.70), width 1.65-1.75/1.65 (1.75). Head. Length 0.70-0.82/0.88 (0.82), width 0.70-0.73/0.70 (0.73), interocular distance 0.32-0.33/0.30 (0.32). Antenna. Length of segment I 0.44-0.50/0.45 (0.50), II 1.20-1.35/1.25 (1.35), III 0.60-0.65/0.63 (0.65) (IV missing in examined specimens). Labium. I (holotype) 0.80 (remaining segments immeasurable in examined specimens). Pronotum. Length 0.65-0.68/0.65 (0.68), width of anterior margin 0.63-0.65/0.58 (0.65), length of lateral margin 0.73-0.75/0.78 (0.75), width of posterior margin 1.30-1.38/1.33 (1.38).

Biology.

Unknown.

Distribution.

Australia (South Australia) (Fig. 31).

Etymology.

The specific name is derived from the Latin “bi”, meaning two, and “macula”, meaning spot, and is used to denote the presence of two large dorsal patches, each situated near base of each hemelytron.

Type material.

Holotype ♀: Australien 78, Wilpena Pound, Flinders Range, SA, 25.12.1972, M. Baehr (ZSM). Paratypes 1 ♀ and 1 ♂: same data as for holotype (ZSM).