Stenodema virens (Linnaeus, 1767)

Namyatova, Anna A., Dzhelali, Polina A. & Konstantinov, Fedor V., 2024, Delimitation of the widely distributed Palearctic Stenodema species (Hemiptera, Heteroptera, Miridae): insights from molecular and morphological data, ZooKeys 1209, pp. 245-294 : 245-294

Stenodema virens (Linnaeus, 1767)

Figs 1 J, P , 2 B , 5 E – H, R, V , 7 G – I , 10 C, D , 11 E – G

Cimex virens Linnaeus, 1767: 730 (original description).

Stenodema virens Reuter, 1904: 4 (comb. nov., key to species); Carvalho 1959: 307 (catalogue); Kerzhner and Jaczewski 1964: 958 (key to species); Wagner and Weber 1964: 94 (key to species); Wagner 1974: 112 (key to species); Muminov 1989: 127 (key to species); Vinokurov and Kanyukova 1995: 98 (key to species); Kerzhner and Josifov 1999: 196 (catalogue). 7

Diagnosis.

Body length in male 6.0–6.6, in female 6.1–7.1; frons protruding above clypeus base (as in Fig. 1 C ); labium reaching middle coxa, but not surpassing it (as in Fig. 1 N ); hind femur distinctly tapering towards apex, without spines (Fig. 2 B ), 6–8 × as long as wide; hind tibia curved basally (as in Fig. 2 I ); swelling on propleura curved (as in Fig. 1 H ); antennal segment I length / head width ratio in male 1.0, in female 0.8–1.0; antennal segment I / pronotum length ratio 0.6–0.7 in male, 0.6–0.8 in female; antennal segment I not widened basally, its setae at base as dense as on other parts of this segment; setae in antennal segment I simple; antennal segment II length / head width ratio in male 2.4–2.6; groove on posterior part of mesopleuron absent (as in Fig. 1 M ); paired pits between calli absent (as in Fig. 1 G ); setae on posterior margin of hind femur denser than on other parts of femur, shorter than half of hind femur width (Fig. 2 B ); genital capsule only slightly longer than wide, acute apically, with outgrowth near left paramere socket (Fig. 5 R ); right paramere ~ 4 × as long as wide, its apical part as wide as basal part, apical process bifurcate (Fig. 5 E, G ); right paramere with apical process acute in posterior view (Fig. 5 Р), its sensory lobe swollen (Fig. 5 F ); vesica with four membranous lobes (Fig. 7 G – I ); membranous swelling on dorsal labiate plate not covering sclerotized rings (Fig. 10 C ); posterior wall with dorsal structure and sigmoid process between interramal lobes, dorsal structure rounded (Fig. 10 D ).

Distribution.

Stenodema virens is widely distributed in Europe, the Near East, and the Caucasus, extending eastwards to Yakutia, Buryatia, Mongolia, and northern China ( Kerzhner and Josifov 1999).

Figures

Figure 1. SEM images. S. pilosa A head, anterior view. ZISP _ ENT 00009372 G head and pronotum, dorsal view, ZISP _ ENT 00009372 Q hind tarsus, ZISP _ ENT 00009386. S. turanica B head, anterior view, ZISP _ ENT 00004934 C head, lateral view, ZISP _ ENT 00004934. S. holsata D pretarsus, dorsal view, ZISP _ ENT 00013676 F head and pronotum, dorsal view, ZISP _ ENT 00007905. S. calcarata E head and pronotum, dorsal view, ZISP _ ENT 00007331 I head and pronotum, lateral view, ZISP _ ENT 00013671 L thoracic pleura, ZISP _ ENT 00007386 N labium, ZISP _ ENT 00007382. S. laevigata H head and pronotum, lateral view, ZISP _ ENT 00005650 K thoracic pleura, ZISP _ ENT 00007921 O labium, ZISP _ ENT 00013673. S. virens J scutellum, clavus. and corium, ZISP _ ENT 00003645 P cuneus and membrane, ZISP _ ENT 00003645. S. sibirica M thoracic pleura, ZISP _ ENT 00004930.

Figure 2. SEM images. S. calcarata A hind femur, ZISP _ ENT 00007331 G pretarsus ventrally, ZISP _ ENT 00013668 J hind tibia, ZISP _ ENT 00007331. S. virens B hind femur, ZISP _ ENT 00003645. S. turanica C hind femur, ZISP _ ENT 00004938 I hind tibia, ZISP _ ENT 00004938. S. pilosa D hind femur, ZISP _ ENT 00009371. S. laevigata E hind femur, ZISP _ ENT 00006444. S. sibirica F hind femur, ZISP _ ENT 00003705. S. holsata H hind femur, ZISP _ ENT 00013674.

Figure 5. Male genitalia. S. laevigata. ZISP _ ENT 00002699 A right paramere, dorsal view B left paramere, dorsal view C right paramere, posterior view D left paramere. posterior view Q genital capsule, dorsal view. S. virens. ZISP _ ENT 00003616 E right paramere, dorsal view F left paramere, dorsal view G right paramere, posterior view H left paramere, posterior view R genital capsule V theca. S. calcarata. ZISP _ ENT 00002712 I right paramere, dorsal view J left paramere, dorsal view K right paramere, posterior view L left paramere, posterior view T genital capsule. S. holsata. ZISP _ ENT 00003625 I right paramere, dorsal view J left paramere, dorsal view K right paramere, posterior view L left paramere, posterior view S theca; ZISP _ ENT 00002803 T genital capsule.

Figure 7. Inflated vesica, S. laevigata, ZISP _ ENT 00002699 A dorsal view B left lateral view C ventral lateral view. S. turanica, ZISP _ ENT 00003618 D dorsal view E left lateral view F ventral lateral view. S. virens, ZISP _ ENT 00003616 G dorsal view H ventral view I left lateral view.

Figure 10. Female genitalia. S. turanica. ZISP _ ENT 00002735 A dorsal labiate plate E posterior wall of bursa copulatrix. S. sibirica. ZISP _ ENT 00003679 B posterior wall of bursa copulatrix F dorsal labiate plate. S. virens ZISP _ ENT 00002732 C posterior wall of bursa copulatrix D dorsal labiate plate.

Figure 11. Digital images of habitus. S. turanica A ♂ ZISP _ ENT 00004938 B ♂ ZISP _ ENT 00004937 C ♀. ZISP _ ENT 00004935 D ♀. ZISP _ ENT 00004953. S. virens E ♂ ZISP _ ENT 00004898 F ♂ ZISP _ ENT 00004897 G ♀. ZISP _ ENT 00004894. S. holsata H ♂ ZISP _ ENT 00004903 I ♀ ZISP _ ENT 00004907.