Labriella fusca, Namyatova & Cassis, 2021

Namyatova, Anna A. & Cassis, Gerasimos, 2021, Five new genera of the subfamily Cylapinae (Insecta, Heteroptera, Miridae) from Australia, ZooKeys 1012, pp. 95-134 : 95

Labriella fusca sp. nov. Figs 1 , 5 , 6 , 7 , 15B

Material examined.

Holotype: Australia: Qld: Mossman Bluff Track, 5-10 km W Mossman, site 6, 16.46667°S, 145.3667°E, 860 m, 16 Dec 1988-30 Dec 1988, Monteith, Thompson and ANZSES, 1♂ (UNSW_ENT 00043296) (QM). Paratypes: Australia: Qld: 10 km SE El Arish, Laceys Creek nr Mission Beach, 17.86067°S, 146.08632°E, 40 m, 23 Jul 1982-05 Aug 1982, S. and J. Peck, 1♂ (00043320), 1 sex unknown (00043333) (AMNH). Bellenden Ker Range, 1 km S of Cable Tower 6, North Queensland, 17.23409°S, 145.86514°E, 500 m, 17 Oct 1981-05 Nov 1981, Earthwatch/QLD. Museum, 1♂ (00043312) (QM). Bellenden Ker Range, Cableway Base Stn, 17.271°S, 145.9°E, 100 m, 17 Oct 1981-09 Nov 1981, Earthwatch, 1 sex unknown (00043311) (QM). Cardwell Ra, Upper Broadwater Ck Valley, 18.3°S, 145.9333°E, 700 m, 17 Dec 1986-21 Dec 1986, Monteith, Thompson, Hamlet, 1♂ (00043317) (QM). Davies Ck Rd, 20 km SE Mareeba, 17.05°S, 145.6°E, 750 m, 04 Dec 1988-13 Dec 1988, Monteith and Thompson, 1♂ (00043319) (QM). Downey Ck, 25 km SE Millaa Millaa, 17.65°S, 145.7833°E, 400 m, 07 Dec 1988, G. Monteith and G. Thompson, 4♀ (00043291-00043294) (QM). Graham Ra, 17.28333°S, 145.9667°E, 550 m, 08 Dec 1995-09 Dec 1995, Monteith, Cook, Thompson, 3♀ (00043313, 00043314, 00043331) (QM). Hughes Rd, Topaz, 17.43333°S, 145.7°E, 650 m, 06 Dec 1993-25 Feb 1994, Monteith, Janetzki and Cook, 2♂ (00043309, 00043310) (QM). Lake Eacham, 17.28796°S, 145.62616°E, 750 m, 09 Dec 1989-14 Jan 1990, Monteith, Thompson and Janetzki, 1♂ (AMNH_PBI 00201880), 1 sex unknown (00043306) (QM). Mossman Bluff, 2 km ESE, 9 km W Mossman, 16.65°S, 145.5667°E, 1000 m, 17 Dec 1988-19 Dec 1988, Monteith and Thompson, 1♀ (AMNH_PBI 00404490) (QM). Mossman Bluff Track, 5-10 km W Mossman, N. Qld, Site 6, 16.46667°S, 145.3667°E, 860 m, 20 Dec 1989-15 Jan 1990, Monteith, Thompson and ANZSES, 1♂ (AMNH_PBI 00202018) (QM). Mossman Bluff Track,5-10 km W Mossman (Site1), 16.46667°S, 145.3667°E, 250 m, 20 Dec 1989-15 Jan 1990, Monteith, Thompson and ANZSES, 1♀ (AMNH_PBI 00404484), 1♂ (AMNH_PBI 00404486) (QM). Mossman Bluff Track, 5-10 km W Mossman (Site 5), 16.46667°S, 145.3667°E, 760 m, 16 Dec 1988-30 Dec 1988, Monteith, Thompson and ANZSES, 1♂ (00043297) (QM); 01 Jan 1989-16 Jan 1989, Monteith, Thompson and ANZSES, 1♂ (00043298) (QM); 20 Dec 1989-15 Jan 1990, Monteith, Thompson and ANZSES, 3♂ (00043117-00043119) (QM). Mossman Bluff Track, 5-10 km W Mossman, Site 7, 16.46667°S, 145.3667°E, 1000 m, 20 Dec 1989-15 Jan 1990, Monteith, Thompson and ANZSES, 3♂ (AMNH_PBI 00201868, AMNH_PBI 00201878, 00051481), 1♀ (AMNH_PBI 00404485) (QM). Mossman Bluff Track, 5-10 km W Mossman, site 6, 16.46667°S, 145.3667°E, 860 m, 16 Dec 1988-30 Dec 1988, Monteith, Thompson and ANZSES, 1♂ (00043295) (QM). Mossman Bluff Track, 9 km W Mossman, 16.44365°S, 145.29083°E, 1000 m, 17 Dec 1988, G. Monteith and G. Thompson, 1♂ (00043303) (QM). Mossman Bluff Track, 9 km W Mossman, Site 6, 16.44365°S, 145.29083°E, 860 m, 20 Dec 1989, Monteith and Thompson, 1♂ (00043302) (QM). Mossman Bluff Track, 10 km W Mossman, 16.45958°S, 145.27618°E, 1200 m, 17 Dec 1988, G. Monteith and G. Thompson, 1♂ (00043299), 2♀ (00043300, 00043301) (QM). Mt Finnigan summit, via Helenvale, 15.81667°S, 145.2833°E, 1100 m, 28 Nov 1985-30 Nov 1985, Monteith, Cook, Roberts, 1♂ (00043315) (QM). Mt Fisher, 7 km SW Millaa Millaa,Whiteing Rd, 17.55°S, 145.5667°E, 1200 m, 05 May 1983, G. B. Monteith, D. K. Yeates, 1♀ (AMNH_PBI 00404493) (QM). Mt Lewis Rd, 11 km from H’way (Site 1), 16.05°S, 145.2667°E, 1000 m, 18 Dec 1889-13 Jan 1990, Monteith, Thompson and ANZSES, 1♂ (00043304) (QM). Mt Lewis Rd,16 km from H’way (Site 2), 16.56667°S, 145.2667°E, 950 m, 18 Dec 1989-13 Jan 1990, Monteith, Thompson and ANZSES, 1♂ (00043305) (QM). Mt Spurgeon; 2 km SE, via Mt Carbine, 16.45°S, 145.2°E, 1100 m, 20 Dec 1988, Monteith and Thompson, 3♂ (00043120, 00043307, 00043308), 4♀ (00043121, AMNH_PBI 00404487-AMNH_PBI 00404489) (QM). Mt Williams 0.5 km NW, 16.91667°S, 145.6667°E, 870 m, 28 Nov 1997, G. B. Monteith, 1♀ (AMNH_PBI 00404491) (QM). PEI road. Topaz, 17.4°S, 145.68333°E, 580 m, 06 Dec 1993-25 Feb 1994, Monteith, Janetzki and Cook, 1♂ (00043316) (QM). Paluma Dam Rd, Site 2, 19.23333°S, 146.2167°E, 720 m, 17 Nov 1990-08 Dec 1990, Monteith and Seymour, 1♂ (00043318) (QM). Polly Ck, (Hasenpusch property), 17.46667°S, 146.0167°E, 50 m, 25 Nov 1994-10 Jan 1995, Monteith and Hasenpusch, 1 sex unknown (00043332) (QM). Russell River at Bellenden Ker Landing, 17.25°S, 145.94°E, 5 m, 24 Oct 1981-09 Nov 1981, Earthwatch, 1♂ (AMNH_PBI 00404492) (QM). Tully R. Xing, 10 km S Koombooloomba Dam, 17.9318°S, 145.61902°E, 750 m, 08 Dec 1989, Monteith, Thompson and Janetzki, 1♀ (00043330) (QM).

Diagnosis.

Body mostly brown to dark brown; clavus and corium with transversal stripe somewhat darker than rest of hemelytron (Fig. 1 ); labial segment III, scutellum apically, marking on cuneus at base, markings on abdomen, fore- and hind coxa at least basally, tibia apically, tarsi entirely or partly whitish yellow; endosoma with elongate sclerite, tapering apically; endosoma with sub-rectangular sclerite at base of elongate sclerite, and with sclerotised area on left side (Fig. 6A, B ); dorsal labiate plate with semilunar sclerotised rings, those rings small, subequal to ca. 0.12-0.14 of dorsal labiate plate width (Fig. 7A ).

Description.

Male. Body length 2.7-3.0. Coloration (Fig. 1 ). Mainly brown to dark brown, sometimes with reddish tinge; antennal segment II apically, labial segment III, scutellum apically, base of cuneus, markings on abdomen, fore- and hind coxae at least basally, tibia apically, tarsi entirely or partly whitish yellow. Antennal segment I also sometimes pale brown to whitish yellow. Surface and vestiture. As in generic description. Structure and measurements. Body ca. 2.6-2.8 × as long as wide, ca. 3.1-3.3 × as long as pronotum width. Head ca. 2.2-2.5 × as wide as long; vertex ca. 1.0-1.1 × as wide as eye; in anterior view head ca. 1.2-1.3 × as wide as high; antennal segment I ca. 1.1-1.2 × as long as vertex; segment II ca. 3.0-3.5 × as long as segment I, ca. 3.3-3.8 × as long as vertex width, 1.2-1.3 × as long as head width, ca. 0.9 × as long as pronotum width; pronotum ca. 1.9-2.1 × as wide as long, ca. 1.3-1.4 × as wide as head. Genitalia. Genital capsule simple, without supragenital bridge; apical part of ventral wall curved dorsally (Fig. 6C ). Right paramere short, with swelling on basal half directed outwards; right paramere also with widened apical half; apical process of right paramere narrow in dorsal view and flat in posterior view (Fig. 6D, E ); left paramere L-shaped, slightly longer than right paramere, mostly narrow with swollen basal part, swelling directed upwards and inwards; apical process of left paramere flat in posterior view (Fig. 6F, G ), aedeagus with phallobase wider than phallotheca; endosoma not subdivided into vesica and conjunctiva; endosoma voluminous with sclerotised area on the left, elongate spicule tapering apically, and subrectangular spicule at base of elongate spicula; ductus seminis mostly membranous with coils, it curved right side within endosoma with secondary gonopore placed near right basal angle of phallotheca; ductus seminis with basal part sclerotised; ductus seminis around secondary gonopore oval, sclerotised, armed with microsculpture (Fig. 6A, B ).

Female. Body length 2.7-2.9. Coloration (Fig. 1 ). As in male. Surface and vestiture. As in generic description. Structure and measurements. Body ca. 2.6-2.7 × as long as wide, ca. 3.1-3.3 × as long as pronotum width. Head ca. 1.9-2.2 × as wide as long; vertex ca. 1.0-1.3 × as wide as eye; in anterior view head ca. 1.1-1.2 × as wide as high; antennal segment I ca. 1.1-1.2 × as long as vertex; segment II ca. 2.3-2.7 × as long as segment I, ca. 2.3-2.8 × as long as vertex width, ca. 0.9-1.0 × as long as head width, ca. 0.7-0.8 × as long as pronotum width; pronotum ca. 1.8-2.0 × as wide as long, ca. 1.3-1.4 × as wide as head. Genitalia. Dorsal labiate plate with semilunar sclerotised rings, those rings small, ca. 0.12-0.14 × as wide as dorsal labiate plate width, and placed near posterior margin of dorsal labiate plate; lateral oviducts attached in the middle of dorsal labiate plate (Fig. 7A ); ventral wall with paired elongate sclerites near vulva (Fig. 7B ); posterior wall membranous, without any sclerotisation (Fig. 7C ).

Distribution.

Known from numerous localities in the Australian Wet Tropics (Fig. 15B ).

Collection methods.

The specimens of Labriella fusca were collected using pitfall traps, intercept traps, pyrethrum spraying of trees and logs and baited window trap.

Etymology.

Species is named so for its brown colour, fuscus from Latin meaning brown.

Figures

Figure 1. Habitus of Dariella rubrocuneata and Labriella fusca.

Figure 5. SEM images. Labriella fusca A head and pronotum, lateral view B head and pronotum, dorsal view C head, anterior view D antenna E labium F pretarsus, ventral view G hind tarsus H pleura I scutellum, clavus and corium J cuneus and membrane cell K legs L trichobothria on middle femur M trichobothria on hind femur.

Figure 6. Male genitalia. Labriella fusca A aedeagus, dorsal view B aedeagus, left lateral view C genital capsule, dorsal view D left paramere, dorsal view E left paramere, posterior view F right paramere, dorsal view G right paramere, posterior view.

Figure 7. Female genitalia. Labriella fusca A dorsal wall B ventral wall of bursa copulatrix C posterior wall of bursa copulatrix.

Figure 15. Distribution maps A Dariella rubrocuneata, Callitropisca florentine B Labriella fusca, Laetifulvius morganensis, Micanitropis seisia.