Gorczyciana Wolski et Taszakowski 2023, gen. nov.
Creators: name: Wolski, Andrzej
name: Taszakowski, Artur
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Miridae
Gorczyciana

description: Genus: Gorczyciana Wolski et Taszakowski gen. nov.
Type species: Gorczyciana sulawesica Wolski et Taszakowski gen. nov., here designated.
Diagnosis. Easily recognized by the following set of characters: body relatively large (more than 4.5 mm); dorsum with characteristic vestiture composed of moderately dense, erect and suberect, thin, caliciform, and apically serrate setae (Figs 2E, H, I); antennomere I relatively long, about as long as head length, curved near base, with long, erect, thick, cylindrical, apically serrate bristles (Figs 1, 2A, D, F); antennomere II weakly arcuate (Figs 1, 2A); pronotal collar weakly separated from remainder of pronotum by shallow depression (Fig. 2E); pronotal calli strongly upraised, occupying most of pronotum (Figs 2G, H); lateral margin weakly elevated and strongly carinate (Figs 2C, H); hemelytral veins convex along entire length (Fig. 2A); embolium wide (Fig. 2A); vulvar area with strongly developed sclerotizations (Figs 3C–F); apex of gonapophyses 8 and 9 obtuse, without any teeth; gonapophyses 8 connected by delicate membrane along entire length, this membrane furnished with a thin, elongated sclerotization originating near base of gonapophyses 8 and terminating near apex (ss) (Figs 3D, E, H).
Description. Female. Macropterous. TEXTURE AND VESTITURE. Dorsum covered with characteristic vestiture composed of moderately dense, erect and suberect, thin, caliciform and apically serrate setae (Figs 2E, H, I). Head, pronotum, thoracic pleura, mesoscutum and scutellum with net-like sculpture comprised of microsetae (Figs 2E, G, H, I). Head. Eyes covered with vestiture similar to dorsum (Fig. 2E); antennomere I covered with fine, closely fitting setae and with several stiff, long, erect, apically serrate cylindrical bristles (Fig. 2D); antennomere II covered with fine, moderately dense setae; antennomeres III and IV missing in examined specimen. Thorax. Pronotum. Anterior angles each with single long, erect, thick, apically serrate bristle (Fig. 2E). Thoracic pleura. Covered with sparse, recumbent scale-like setae. Hemelytron. Shagreened (Fig. 2I). Legs. Coxae nearly glabrous; femora and tibiae covered fine, short, relatively dense, semi-recumbent setae; inner surface of fore femur with row of long, erect, simple setae along entire length. Abdomen. Covered with relatively dense and long semi-recumbent setae (Fig. 2B, C). STRUCTURE. Head. Porrect; vertex with moderately deep longitudinal depression along midline, posterior margin not carinate (Fig. 2E); clypeal base situated above ventral margin of eye (Fig.1F); mandibular plate without sulcus posteriorly (Fig. 2G); antennal insertion contiguous with sulcus between maxillary and mandibular plates (Fig. 2F); eyes contiguous with pronotal collar, relatively large, reniform in lateral view, reaching gula, almost wrapping head (Figs 2E–G); antennomere I rather long, weakly curved near base (Figs 2A, C, D); antennomere II thinner than antennomere I, somewhat arcuate, weakly broadened toward apex (Fig. 2A); labium thin, weakly reaching beyond hind coxae (Fig. 2B); segment I subdivided near medial portion (Figs 2B, G); segment II subdivided subapically. Thorax. Pronotum. Trapeziform, short (Figs 1, 2A); lateral margin elevated, strongly carinate, weakly arcuate (Figs 2G, H); calli upraised, separated by deep depression, long, almost reaching posterior margin of pronotum and broad but not reaching lateral margins (Figs 2A, G, H); humeral angles relatively thin and long (Figs 2A, H); posterior margin weakly sinuate (Fig. 2A). Mesoscutum and scutellum. Mesoscutum well exposed; scutellum moderately convex (Figs 2A, C). Thoracic pleura. Scent gland efferent system relatively broad, triangular; peritreme moderately upraised, ovoid (Fig. 2C). Hemelytron. Arcuate laterally; embolium wide; hemelytral veins convex; membrane with two cells (Fig. 2A). Legs. Not modified; relatively long (Fig. 2A); tarsi of each leg missing in examined specimen. Abdomen. Female genitalia. Genital chamber mostly membranous, voluminous, moderately expanded laterally beyond gonapophyses 8, semicircular (Figs 3A–F); sclerotized rings thin rimmed, relatively broad, almost entirely enveloping lateral portion of genital chamber (Figs 3A–C), posterior edge of sclerotized rings weakly folded (Figs 3C, F); lateral oviducts moderately thick, their bases moderately removed from each other (Fig. 3B); vulvar area with strongly developed sclerotizations (Figs 3C–F); genital chamber posterior wall with lateral margins of interramal sclerite thickened (Fig. 3G); ovipositor thin; apex of gonapophyses 8 and 9 obtuse, without any teeth (Figs 3I, J); gonapophyses 8 connected by delicate membrane along entire length, this membrane furnished with thin, elongated sclerotization originating near base of gonapophyses 8 and terminating near apex (ss) (Figs 3D, E, H).
Remarks. Gorczyciana gen. nov. is readily recognized by the unique set of the diagnostic characters that is not found in other Cylapinae. The new genus is assigned to the tribe Fulviini based on characters provided by Gorczyca (2000) as diagnostic for the tribe such as horizontal head, forecoxae and fore-femora enlarged, labium reaching the middle of abdomen. Other features allowing for a placement in Fulviini commonly found in the tribe are: labial segments I and II subdivided (Figs 2C, G), clypeal base situated well above the ventral margin of the eye (Figs 2C, F, G); antennal insertion contiguous with sulcus between maxillary and mandibular plates (Fig. 2G); eye enlarged, reniform, its ventral margin reaching gula (Figs 2C, F, G); mandibular plate without sulcus posteriorly; bursa copulatrix relatively thin, not reaching laterally beyond rami of the first valvulae (Figs 3A, B, D). (Wolski & Henry 2012, 2015; Wolski et al. 2017; Namyatova & Cassis 2019 a, 2021, 2022; Wolski 2021).
Gorczyciana is similar and possibly closely related to such fulviine genera as Cassisotropis Taszakowski et al. (Madagascar), Ceratofulvius Reuter (Australia), Euchilofulvius Poppius (Oriental and Australian Regions), Fulvius Stål (species belonging to the anthocoroides group–cosmopolitan), Peritropis Uhler (cosmopolitan), Peritropisca Carvalho & Lorenzato (Australian Region), Rewafulvius Carvalho (Fiji) or Sulawesifulvius Gorczyca, Chérot & Štys 2004 (Sulawesi) in sharing dorsum verrucose or with net-like sculpture comprised of tuberculate microsetae (Gorczyca & Wolski 2007: Fig. 9; Wolski & Henry 2012: figs 27–32; Pluot-Sigwalt & Chérot 2013; Gorczyca et al. 2020: fig. 2A; Wolski & Gorczyca 2014: figs 29–31; Wolski et al. 2017: fig. 7; Namyatova & Cassis 2019; fig. 18J; Taszakowski et al. 2022b: figs 2B–E).Among those genera Gorczyciana is most similar to Peritropis in both sharing the oval body (Figs 1, 2A) and short pronotum with somewhat elevated and strongly carinate lateral margin and the collar weakly separated from the remainder of pronotum (absent in some Peritropis species) (Fig. 2H; Wolski & Henry 2012: fig. 2). Additionally, Gorczyciana and many species of Peritropis (pers. obs.) possess a long, thin sclerotization along the membrane connecting 8 gonapophyses (Figs 3D, E, H) and the vulvar area is furnished with strongly developed sclerotizations (Figs 3C–F), which also may indicate a close affinity between both taxa. The new genus, however, can be easily distinguished from Peritropis in having the antennomere I about as long as head length (Fig. 2A), the strongly upraised pronotal calli (Figs 2C, G), the wide embolium, and the convex hemelytral veins (Fig. 3A). Similar structure of pronotum is also found in the genus Sulawesifulvius Gorczyca, Chérot & Štys, 2004 (Gorczyca et al. 2004). The latter can, however, be easily distinguished from both genera by having the antennomere III the longest, the cuneus long, curved, nearly enveloping membrane, and the enlarged metafemur with subapical depressions laterally (Gorczyca et al. 2004). Gorczyciana somewhat resembles the Madagascan genus Cassisotropis in both having the apically serrate bristles on head and pronotum (Fig. 2 E; Taszakowski et al. 2022b: 2 B) at the same time having the weakly developed pronotal collar separated from the remainder of pronotum by shallow suture (Fig. 2E; Taszakowski et al. 2022b: fig. 2B). Also, both genera have upraised and acute calli although in Cassisotropis they are proportionally smaller than remainder of the pronotum (Taszakowski et al. 2022b: 2 B) whereas in Gorczyciana they calli occupy most of pronotum (Fig. 2A). Additionally, both genera can be readily separated by the position of the lateral margin of pronotum which is elevated in Gorczyciana (Figs 2A, H) and depressed in Cassisotropis (Taszakowski et al. 2022b: fig. 2B). Another feature discriminating those two genera is the structure of the posterior lobe of pronotum which is flattened in the new genus (Fig. 2H) and possessing weakly raised tubercles, each situated mediolaterally, bordering posterior margin in Cassisotropis (Taszakowski et al. 2022b: fig. 2B). In the latter genus the vulva is devoid of sclerotized structures (Taszakowski et al. 2022b: fig. 4C) whereas Gorczyciana has the vulvar area furnished with strongly developed sclerotizations (Figs 3C–F). The new genus is somewhat similar to the Australian genus Ceratofulvius in sharing similar mottled coloration (Namyatova & Cassis 2019a: figs 5) and some structural features of the head, pronotum and female genitalia such as for example the upraised pronotal calli (Namyatova & Cassis 2019a: figs 5, 16A, B, 18B, C). Both genera can, however, be easily distinguished the structure of the pronotal collar (well developed, separated from the remainder of the pronotum by the deep furrow in Ceratofulvius) (Namyatova & Cassis 2019a: fig. 16A, 18B) and the metathoracic scent gland evaporative area which in the new genus is moderately developed and triangular (Fig 2C) while in Ceratofulvius it is strongly broadened and semicircular (Namyatova & Cassis 2019a: 18 J).
description: Published as part of Wolski, Andrzej & Taszakowski, Artur, 2023, Gorczyciana sulawesica-a remarkable new plant bug genus and species (Heteroptera: Miridae: Cylapinae) from Indonesia, pp. 260-270 in Zootaxa 5297 (2) on pages 261-262, DOI: 10.11646/zootaxa.5297.2.5, http://zenodo.org/record/7993227