Stenotus binotatus (Fabricius, 1794)

Zamani, M. & Hosseini, R., 2020, An illustrated taxonomic key to genera of Mirinae (Hemiptera: Heteroptera: Miridae) with three new records from Iran, Russian Entomological Journal 29 (1), pp. 20-32 : 22-23

Stenotus binotatus (Fabricius, 1794)

Figs 1–2 , 14–17 , 83 .

SYNONYMY: Stenotus paykulli (Turton,1802) ; Stenotus sareptanus Jakovlev, 1877 .

SPECIMENS EXAMINED. Iran, Guilan province: Totkabon; Shirkoh 2♂, 2♀ (36°89´N 49°59´E, 303m), 31.V.2018. Mazandaran province:Ramsar 2♂, 2♀ (36°90´N 50°58´E, 580 m), 25.VI.2018, M. Zamani, sweeping .

DIFFERENTIAL DIAGNOSIS. S. binotatus is easily distinguished from S. pallidus Reuter, 1904 and S. brevior Poppius, 1910 by its small size: 5.6– 6♀ (in S. pallidus 6.3– 6.7 ♀), presence of black markings on pronotum (in S. pallidus pronotum uniformly yellow; in S. brevior black markings indistinct), labium reaching metacoxa and often surpassing metacoxa (in S. pallidus short and not extending beyond the mesocoxa), 2 nd antennal segment 3x as long as 1 st antennal segment (4x in S. brevior ), posterior margin of pronotum 2.3–2.5x as long as 1 st antennal segment (3x in S. brevior ) [ Poppius, 1905; Akramovskaya, Kerzhner, 1978].

This species has been reported from all zoogeographic regions. Namyatova et al. [2013] and Kim and Jung [2016] provided detailed redescriptions quite recently. Here we have briefly redescribed the male and female genitalia as follow.

MALE GENITALIA. Left paramere sickle-shaped, sensory lobe strongly swollen and greatly expanded, apophysis prominent and widened, distally angulate, with flattened tip ( Fig. 15 ); right paramere subapically with a depression, apophysis apically inclined upward, apex almost flattened ( Figs 16– 17 ); vesica multilobed, membranous lobes apically spinose, medial lobe apically with concentration of enlarged spines ( Fig. 14 ).

FEMALE GENITALIA. Dorsal labiate plate small; sclerotized rings small, elliptical, widely separated, oval, placed laterally and oriented vertically; posterior wall with interramal sclerites, spinulate interramal lobes (medially separated), dorsal structure and large median process ( Fig. 83 ).

COMMENTS. Stenotus is composed of 53 species in the world ( Schuh, 2002 –2013). Eleven species are known in Palearctic region and only two species were previously recorded from Iran (including S. pallidus and S. brevior ) [ Wagner, 1968; Linnavuori, 2009]. Stenotus binotatus as a new record from Iran, was collected on Geramineous plants.

Figures

Figs 1–6. Habitus photographs of new record specimens (male): 1–2 — Stenotus binotatus; 3–4 — Cyphodema humbaba; 5–6 — Rauniella ishtar; 1, 4, 5 — dorsal view; 2, 3, 6 — lateral view. Scale bar: 1 mm. Рис. 1–6. Фотографии габитуса видов, впервые найденных в Иране (самцы): 1–2 — Stenotus binotatus; 3–4 — Cyphodema humbaba; 5–6 — Rauniella ishtar; 1, 4, 5 — сверху; 2, 3, 6 — сбоку. МасШтаб: 1 мм.

Figs 7–17. Male genitalia: 7–9 — Cyphodema humbaba; 10–13 — Rauniella ishtar; 14–17 — Stenotus binotatus; 7, 10, 14 — vesica; 8, 11, 12, 15 — left paramere; 9, 13, 16, 17 — right paramere; apo — apophysis; ml — membranous lobe; sg — secondary gonopore; sp — spiculum. Scale bar: 0.1 mm (7–13 and 14–17 same scale). Рис. 7–17. Гениталии самцов: 7–9 — Cyphodema humbaba; 10–13 — Rauniella ishtar; 14–17 — Stenotus binotatus; 7, 10, 14 — веЗика; 8, 11, 12, 15 — леваЯ парамера; 9, 13, 16, 17 — праваЯ парамера; apo — апофиЗ; ml — мембраннаЯ лопасть; sg — вторичный гонопор; sp — спикулЮм. МасШтаб: 0.1 мм (7–13 и 14–17 в одном масШтабе).

Figs 76–91. Female genitalia of Mirini tribe: Sclerotized ring and posterior wall of bursa copulatrix with their associated structures: 76 — Adelphocoris vandalicus (Rossi, 1790); 77 — Dichrooscytus persicus Josifov, 1974; 78 — Pinalitus cervinus (Herrich-Schaeffer, 1841); 79 — Mermitelocerus schmidtii (Fieber, 1836); 80 — Megacoelum sp.; 81 — Cyphodema humbaba Linnavuori, 1984; 82 — Creontiades pallidus (Rambur, 1839); 83 — Stenotus binotatus (Fabricius, 1794); 84 — Calocoris roseomaculatus roseomaculatus (De Geer, 1773); 85 — Polymerus vulneratus (Panzer, 1806); 86 — Orthops kalmii (Linnaeus, 1758); 87 — Agnocoris reclairei (Wagner, 1949); 88 — Taylorilygus apicalis (Fieber, 1861); 89 — Rauniella ishtar (Linnavuori, 1984); 90 — Charagochilus gyllenhali (Fallén, 1807);