Iberolygus rubrostriatus (Wagner, 1971) Kim & Goula & Roca-Cusachs & Lim & Kim & Jung, 2019

Kim, Junggon, Goula, Marta, Roca-Cusachs, Marcos, Lim, Jongok, Kim, Il-Kwon & Jung, Sunghoon, 2019, Iberolygus n. gen., from the Iberian Peninsula (Hemiptera: Cimicomorpha: Miridae: Mirinae), with a new generic combination for Apolygus rubrostriatus (Wagner, 1971), Zootaxa 4656 (1), pp. 168-176 : 171-175

publication ID	https://doi.org/ 10.11646/zootaxa.4656.1.9
publication LSID	lsid:zoobank.org:pub:E87C6991-AF13-4884-9FB8-A7A181B9F1A8
persistent identifier	https://treatment.plazi.org/id/03ED87A5-FFD7-F444-FF17-225DFDB1FDD8
treatment provided by	Plazi
scientific name	Iberolygus rubrostriatus (Wagner, 1971)
status	comb. nov.

Treatment

Iberolygus rubrostriatus (Wagner, 1971) comb. nov.

( Figs. 1–3 View FIGURE 1 View FIGURE 2 View FIGURE 3 , 4 View FIGURE 4 C–D)

Lygus (Apolygus) rubrostriatus Wagner, 1971: 27 ; Wagner, 1974: 403; Ribes, 1978: 55. Diagnosis. Recognized by pale brown body with reddish stripes dorsally; first antennal segment brown with dark stripes laterally, second segment pale brown except for dark apical part, third segment longer than fourth segment; anterior part of pronotum with two pairs of dark markings; scutellum with reddish medial longitudinal line; femur almost completely reddish-brown excluding basal portion, with dark markings apically; hypophysis of left paramere blunt ( Fig. 2A View FIGURE 2 ); hypophysis of right paramere coiled upwardly, distinctly thick basally, sensory lobe with prominent parts basally and apically ( Figs. 2 View FIGURE 2 C–E); endosoma with one distinct spicule, one sclerite, two membranous sclerites and two sclerotized lobes; medial spicule (ms) thick and curved, tapered to apex, as long as lobal sclerites I and II (lsc I, lsc II), and membranous sclerites I and II (msc I, msc II) ( Figs. 2 View FIGURE 2 F–G); sclerotized ring (sr) not touching each other; medial process projecting into genital chamber (mpgc) broadly developed with tiny spinules ( Fig. 2H View FIGURE 2 ); interramal lobe (irl) elongate and not finger-like but not surpassing interramal sclerite (irs), apical part of irl slightly folded back; dorsal structure (ds) broadly developed with spinules; valvula with tooth like structure apically ( Figs. 2 View FIGURE 2 H–J).

Description. Male: Body oval, length 6.61. Coloration. Generally brown with reddish stripes. Head: almost pale with large patches of red coloration, reddish markings on vertex variable; clypeus entirely reddish brown; antennae generally brown; first segment brown with dark lateral stripe, second segment pale brown except for dark apices, other segments dark brown; labium generally reddish-brown. Thorax: pronotum pale brown with dark markings and longitudinal reddish stripes, calli region with two pairs of dark markings, posterior lobe of pronotum with one pair dark markings on lateral sides; scutellum pale brown with reddish medial longitudinal stripe, margins of scutellum also reddish; hemelytra pale brown, reddish stripes parallel in placement with wing veins; cuneus with markings connecting to stripes of corium; legs brown tinged with red; femur almost reddish-brown except for pale at base, dark markings apically; tibia pale brown except for dark apex; tarsus pale brown, third segment dark brown. Abdomen: pale brown tinged with reddish markings. Surface and Vestiture. Body generally glossy, covered with dense golden pubescence; pronotum glossy, with small punctures; scutellum glossy, with weak punctures; hemelytron slightly glossy, covered with dense golden pubescence, surface with small punctures. Structure. Head: prognathous laterally; vertex with longitudinal sulcus, wider than width of single compound eye; carina prominent and straight dorsally; total antennal length shorter than total body length, first segment cylindrical, longer than vertex, second segment slender and cylindrical, third segment longer than fourth segment; proportion of first to fourth antennal segments 0.81: 2.39: 1.33: 1.05; labrum as long as 1/2 first labial segment; labium reaching to abdominal segment VI; proportion of first to fourth labial segments 0.69: 0.72: 0.73: 0.90. Thorax: pronotum trapezoid, mesal longitudinal length of pronotum as long as 1/2 basal maximal width; calli weakly swollen; scutellum slightly tumid in lateral view, anterior width longer than 1/2 maximal pronotal width; commissure longer than longitudinal scutellum length; lateral margin of hemelytra rounded; cuneal fracture distinctly developed; cuneus as wide as long; legs slender and long; femur tapered to its apical part; tarsal segments equal in length. Abdomen: apex reaching to cuneal fracture. Genitalia: left paramere with long and dense setae, hypophysis blunt and not sharp, apex of hypophysis weakly projected, curved dorso-laterally, sensory lobe prominent with small tooth ( Figs. 2 View FIGURE 2 A–B); right paramere with long and dense setae, hypophysis coiled upwardly, basal part thick, sensory lobe prominent basally and apically ( Figs. 2 View FIGURE 2 C–E); endosoma with one spicule, one sclerite, two membranous sclerites and two sclerotized lobes; ms thick and curved, tapered to apex; ls distinctly small, curved apically; msc I and msc II with small tooth-liked structures; ms as long as lsc I and II, and msc I and II; sg as wide as ductus seminis ( Figs. 2 View FIGURE 2 F–G).

Female: Body oval, length 6.31. Coloration. As in male. Surface and Vestiture. As in male. Structure. As in male except for proportion of antennal segments 0.8: 2.3: 1.4: 1.1; genital segment with ovipositor reaching apex of cuneus. Genitalia. sr not touching each other, apical process sharp; genital chamber with distinct and symmetrical mpgc, mpgc broadly developed, touching each other ( Fig. 2H View FIGURE 2 ); irl not surpassing irs, apical part of irl slightly folded back structure; ds broadly developed with oval shape, with distinct tiny spinules ( Fig. 2I View FIGURE 2 ); valvula with tooth like structure apically ( Fig. 2J View FIGURE 2 ).

Measurements (in mm). Male (n = 2)/Female (n = 1) Body length, clypeus–apex of membrane: 6.61–7.22/6.31; head length, excluding collar: 0.47–0.51/0.50; head width, including compound eyes: 1.21–1.40/1.27; vertex width: 0.51–0.52/0.53; 1 st antennal segment length: 0.81–0.90/0.79; 2 nd antennal segment length: 2.39–2.51/2.32; 3 rd antennal segment length: 1.33–1.34/1.44; 4 th antennal segment length: 1.05–lacking/1.11; total antennal length: 5.58–4.56 (4th lacking)/5.66; 1 st labial segment length: 0.69–0.75/0.75; 2 nd labial segment length: 0.72–0.80/1.0; 3 rd labial segment length: 0.65–0.73/0.65; 4 th labial segment length: 0.80–0.90/0.8; total labial length: 2.86–3.18/3.20; mesal pronotal length: 1.10–1.35/1.15; basal pronotal maximal width (straight): 2.25–2.30/2.30; anterior scutellar width: 1.15–1.29/1.25; mesal scutellar length: 0.98–1.00/1.14; commissure length: 1.25–1.27/1.27; outer embolial margin length (straight): 3.25–3.28/3.20; outer cuneal margin length (straight): 1.30–1.31/1.20; maximal width across hemelytron: 1.39–1.41/1.30; hind leg (femur: tibia: tarsus): 2.71–2.88: 4.00–4.02: 0.81–0.93/2.78:4.26:0.95.

Specimen examined. [CNU] 1♂, Candasnos , Valle de Valcuerna, Zaragoza, Aragón, Spain, by light trap, 20.V.1989. M.Goula leg.; [ CRBA] 1♂, Pina de Ebro , Sierra de Alcubierre, Zaragoza, Aragón, Spain, 6. VI .1996, J. Blasco leg. [CRBA-69676]. [CRBA] 1♀, Almazán , Soria, Castilla-León, Spain, 14.VIII.1977, J. Ribes leg. [CRBA- 69675] .

Additional information based on photographs uploaded on the internet:

1) https://www.biodiversidadvirtual.org/insectarium/Apolygus-rubrostriatus-img803571.html

Spain, Huelva province , 13 June 2016, on Cistus monspeliensis . André Burgers photoleg and det .

2) https://www.biodiversidadvirtual.org/insectarium/Apolygus-rubrostriatus-img665568.html

Spain, Seville province (UTM 30STG34), 18 June 2013. Mediterranean dry grassland with Asteracea ( Sonchus , Coniza ). Antonio Serrano photoleg, Luis Vivas det.

3) https://www.flickr.com/photos/valter/3575589929/.

Portugal, Algarve , 16 May 2009. Valter Jacinto photoleg .

Host: Cistus sp. ( Cistaceae ) (Wagner 1971).

Distribution: Spain, Portugal (formally first reported in this paper).

Biology: According to all gathered (albeit scarce) information, I. rubrostritatus comb. n. is found in Mediterranean dry vegetation habitat, either dry grassland or shrubland, where Cistus spp. live.

Samples from Zaragoza province are included in a larger area “Los Monegros”, a natural region with an altitude range from 190 to 820 m. Los Monegros is a unique biogeographic region by its similitude to oriental European steppes ( Ribera & Blasco-Zumeta, 1998; Goñi Martinez, 2005). A dry and arid climate, endorreic creeks and a soil corresponding to the soil unit Calcisols (FAO, 2006) concur to host a very interesting flora with nearly a thousand species, dominated by the Mediterranean elements (around 70%), in which more than 10% are Iberian endemic spe- cies plants ( Molero & Blanché, 1998). Cistus spp. ( Cistaceae ) are found in the Austro-mediterranean scrubland of Quercus coccifera (Fagaceae) and Pistacia lentiscus (Anacardiaceae) combined with a canopy of Pinus halepensis (Pinaceae) . In particular, the steppe Valcuerna basin, at ca. 300 m. a.s.l., is part of a series of endorheic depressions to the south of the Monegros, which make up several flat-bottomed holes with brackish-grass meadows and temporary salt lagoons, which constitutes a unique ecosystem of great ecological value. Any rain or precipitation that falls in the basin remains there, leaving the system only by infiltration or evaporation, which contributes to the concentra- tion of salts in and on the soil. At present, the valley receives the surplus water from irrigation, and water is partly channeled. However, the last stretch remains quite untouched, with and abundant vegetation of Tamarix sp. (Tama- ricaceae), together with Equisetum ramosissimum (Equisetaceae) , Salix purpurea (Salicaceae) , Cynanchum acutum (Apocynaceae) and Dittrichia viscosa (Asteraceae) ( Goñi Martinez, 2005). As specimen labelled from Valcuerna was found in a light trap, no tight relationship to any particular host plant species or the vegetation may be given.

According to André Brugers (com. pers.), the specimens photographed by him in Riotinto (37°41'16.2"N 6°36'13.4"W, Huelva province, ca 500 m. a.s.l.), were observed on Cistus monspeliensis and C. ladanifer . Habitat was a mixed wood of pines ( Pinus pinea ), evergreen oaks ( Quercus ilex ) and cork oaks ( Quercus suber ). In the spring, the understory typical scrub vegetation includes several Asteraceae (i.e., Anthemis arvensis , Calendula officinalis , Coleostephus myconis ), Cistaceae (i.e. Cistus tenuiflorus ), Ericaceae (i.e. Erica spp.) and small Fabaceae (i.e. Ulex eriocladus ). In June, the dominant plant is Dittrichia viscosa ( Figs. 4 View FIGURE 4 A–B).

Photography from Seville province fit a Mediterranean dry grassland with Asteracea ( Sonchus sp., Coniza , sp.), according to explanations in the website itself. Unfortunately, no details on the Portuguese specimen locality could be surmised.

To summarize, and with the very short information gathered until present, I. rubrostriatus lives in typical Mediterranean dry, lowland ecosystems, where dry pastures or scrubs are present, either with or without any tree canopy. Salty soils are not discarded by the species.