Perenotus stysi (J. Ribes, Pagola-Carte et Heiss, 2008 ) J. Ribes, Pagola-Carte et Heiss, 2008

Roca-Cusachs, Marcos & Goula, Marta, 2016, New genus and species of ant-like true bug (Hemiptera: Miridae) from the Canary Islands, Zootaxa 4173 (1) : -

Perenotus stysi (J. Ribes, Pagola-Carte et Heiss, 2008) , new combination.

Systellonotus stysi Ribes, Pagola-Carte, and Heiss 2008 : 424 , figs. 1–3 (sp. n., diag., descr. (of female), discussion, habitus photos, female genitalia)

Material examined. Type material. (All female) HOLOTYPE: ‘TENERIFE / Los Cristianos / 7-II-57 J. de Ferrer’ [white, handwritten label] // ‘ HOLOTYPE / Systellonotus stysi sp. nov. / J. Ribes, Pagola-Carte / & Heiss, 2008’ [red, typewritten label] . PARATYPES: 1. ‘ Isl. Can. , Tenerife / Adeje, Bco. del In- / fierno, 400m, / Euphorbia carariensis / 9.IV.1992,leg. Zerche’ [white, typewritten label].

Male: Tenerife/ San Andrés/ 27. IV. 1930 / Sobre los cardones // MNCN_ENT 146550 // Perenotus gen. nov. stysi / Roca-Cusachs & Goula det. 2016; Barrco. de Tahodio/ (Tenerife) - IV - 1928 // MNCN_Ent 146549 // Perenotus gen. nov. stysi / Roca-Cusachs & Goula det. 2016.

Female: Tenerife/ Aguirre/ 7. V. 1927 // MNCN_ENT 146548 // Perenotus gen. nov. stysi / Roca-Cusachs & Goula det. 2016.

Male description. Length: 3.08–3.50 mm. Body surface shiny. Dorsal coloration brownish red or golden brown, abdomen dark brown. Dorsal vestiture of head, pronotum, scutellum and hemelytra with scattered, pale, short setae, shorter than diameter of anterior tibia. Vestiture of abdomen composed of two types of pilosity: short hairs adpressed to surface, plus semierect, short, uniformly scattered setae, each abdominal segment dorsally with one row of around 10 setae ( Fig. 1 d–e). Head dorsally almost pentagonal shape, 0.65–0.75 mm long and 0.80–0.81 mm wide. Eyes small and flattened, postocular region rounded and strongly constricted towards pronotal collar. Ocular index = 4.32–4.65 mm. Head in frontal view subtriangular, approximately as high as wide; distant from antennal fossae to inferior margin of eye and base of clypeus equal. Head laterally ovoid, slightly curved gulae, gulae and jugae bearing erect short scattered setae; clypeus slightly protruding and separated from frons by a slight transversal sulcus; maxillary plates small.

Rostrum 1.78–1.84 mm long, reaching base of abdomen, reddish brown. Segment I thick, nearly as thick as antennomere I, its basal half concealed by small inflated bucculae, latter antero-laterally projected, and visible in frontal view; segments II, III and IV thinner than I.

Antennae stout; segment I thick, cylindrical, pale brown; segment II brownish with darker apex, slightly to distinctly arched in its basal half and somewhat enlarged apically; segment III cylindrical, its basal third whitish and apex blackish; segment IV fusiform, long ovate and dark. Antennae covered by dense, short, adpressed pilosity. Length of antennomeres I-II-III-IV = 0.28-1.12-0.595-0.429 (all in mm). Ratio of segments III/II = 0.52.

Pronotum 0.52–0.57 mm long, 0.52–0.55 mm wide, and 1.15–1.2 times as long as scutellum, dorsally globose with rounded lateral margins; collar depressed, flattened. Propleural acetabula bilobate, lobes separate and divergent, laterally protruded, visible from dorsal view. Evaporatory area of metathoracic scent glands very prominent, transverse, ivory-whitish color, with robust peritreme and large orifice bordering the metacoxa.

Scutellum longer than wide, lateral margins slightly convex. Disc with a distinctive acute conical hump on posterior half, as high as the upper level of head and pronotum.

Hemelytra shiny, distinctly surpassing the apex of scutellum, sub parallel at base and then divergent, posterior external apex, angularly shaped and strongly turned upwards. Clavus indistinct. Exocoria with longitudinal translucent whitish band not reaching anterior and posterior apex of coria, contrasting with reddish coloration in central corium. In lateral view, margin of coria convex upwards in first third and concave downwards posteriorly, thus resulting in sinuous profile.

Legs long, slender and concolored with head, pronotum and scutellum except middle and posterior coxae whitish. Femora and tibiae with short, reclining, brownish setae. Short, isolated spines along inner side of posterior tibiae. Length of metatarsus = 0.279 mm; claw of metatarsus = 0.07 mm; length of metatarsal segments I-II-III = 0.097-0.124-0.097 (all in mm.).

Abdomen swollen; coloration brown with darker terminal segments; connexivum reflexed dorsally. Pygophore constricted, as long as half the length of abdomen.

Male genitalia: Both male parameres are about the same size. Left paramere in dorsal view ( Fig. 1 h): basal process robust, supporting thick body paramer with posterior acute prominence. External surface of paramere body provided with long setae. Sensory lobe short, ending in a sharp point. Apical process wide at base, abruptly narrowing from the middle onwards in a parallel sided expansion. Right paramere ( Fig. 1 f, g) very robust and falcated. Basal process and paramere body almost of same width. Apical process not apparent. In the internal view ( Fig. 1 f), external profile is notched, while in dorsal view ( Fig. 1 g) external profile is continuos. Vesica ( Fig. 1 i) tube-like, long and thin, coiled on itself, secondary gonopore is located at base of apical third of vesica, surrounded by a sclerotized ring; inward orientated tooth next to vesical base.

Female Description: Coloration, vestiture, and general habitus as in male; however, middle and posterior tibae are whitish yellow and length is: 3.12–3.78 mm. Original description of “ Systellonotus stysi ” is not to be taken into consideration as it was based on a mixture of samples (see discussion below) ( Fig. 1 c).

Female genitalia shown in Fig. 2 . Most distinctive features are transverse seminal depository, the absence of spermathecal gland, the regularly oval sclerotized rings and the thick U-shaped antero-medial fold.

Distribution. At present only known from to the island of Tenerife.

Discussion. Perenotus stysi ( Ribes, Pagola-Carte & E. Heiss 2008) was described on a mixture of female specimens, one from La Palma and two from Tenerife. The study revealed that all specimens belong to the new genus Perenotus , but each island hosts a different species. Perenotus stysi includes only the specimens from Tenerife Island. Therefore, La Palma specimens are transferred to P. malobae sp. nov., described below.

Figures

FIGURE 1. Perenotus gen. nov. a, P. malobae sp. nov. female holotype dorsal habitus; b, P. malobae sp. nov. female holotype lateral habitus; c, P. s t y s i female paratype dorsal habitus; d, P. s t y s i male dorsal habitus; e, P. s t y s i male lateral habitus; f, P. s t y s i male left paramere in frontal view; g, P. s t y s i male left paramere in dorsal view; h, P. s t y s i male right paramere; i, P. s t y s i male theca. Scale bar 0.5 mm. Photographs: M. Roca-Cusachs.

FIGURE 2. Perenotus stysi n. comb. female genitalia. Scale bar 0.2 mm.