The Tamarix feeding Leafhopper genus Opsius Fieber, 1866 (Hemiptera, Cicadellidae, Deltocephalinae, Opsiini) in the Kingdom of Saudi Arabia, with description of a new species Author El-Sonbati, Saad A. King Saud University Museum of Arthropods, Plant Protection Department, College of Food and Agriculture Science, King Saud University, P. O. Box 2460, Riyadh 11451, Saudi Arabia anase24@yahoo.com Author Wilson, Michael R. Department of Natural Sciences, National Museum of Wales, Cardiff, CF 10 3 NP. Wales, UK Author Dhafer, Hathal M. Al King Saud University Museum of Arthropods, Plant Protection Department, College of Food and Agriculture Science, King Saud University, P. O. Box 2460, Riyadh 11451, Saudi Arabia text Deutsche Entomologische Zeitschrift 2020 2020-01-14 67 1 1 12 http://dx.doi.org/10.3897/dez.67.46662 journal article http://dx.doi.org/10.3897/dez.67.46662 1860-1324-1-1 DEEE35C505974778840ED3D9DA1F996E 4B97B31B679B5491AA9FD0E9F1E4B5DC Opsius richteri Dlabola Figs 5-8 , 26-28 , 41-43 , 58-62 Opsius richteri Dlabola 1960b : 15 Description. In addition to generic characters, with the following characteristics. Male genitalia. Pygofer slightly angled posteriorly (Fig. 58 ); subgenital plates with rounded apex (Fig. 41 ); connective linear, contiguous (Fig. 43 ); apodemes narrow, extend to mid-length or the end of first abdomen segments, apodeme width three times as distance between each apodeme, posterior margin angled externally and tapered internally (Fig. 59 ); aedeagus with only dorsal process, both distinctively curved or bent inward at base, aedeagal shafts with diverging branches, ratio of distance between two shafts at mid-length to tip length 5/11, bent inward at base, shorter than basal process, two times as wide as basal process, basal process extending close to shaft branches, distinctively curved to form distinctive inward pointed tips; phallobase not inflated (Figs 26 , 27 ). Female genitalia. Female 7th sternite three times as broad at base as long medially, posterior margin concave, slightly produced with V-shaped notch in middle, posterolateral angles acutely rounded (Fig. 60 ); first valvula slightly convex; second valvula slender throughout their length with rather small and serrate teeth on dorsal surface (Figs 61 , 62 ). Figures 23-37. Male genital structures of Opsius spp. 23-25. O. heydeni (Lethierry). 23. Aedeagus dorsal view; 24. Lateral view; 25. Style; 26-28. O. richteri Dlabola. 26. Aedeagus dorsal view, 27. Lateral view; 28. Style; 29-31. O. scutellaris (Lethierry). 29. Aedeagus dorsal view, 30. Lateral view; 31. Style; 32-34. O. versicolor (Distant). 32. Aedeagus dorsal view, 33. Lateral view; 34. Style; 35-37. O. wilsoni sp. nov. 35. Aedeagus dorsal view, 36. Lateral view; 37. Style. Measurement. ♂ 2.8 mm; ♀, 3.2 mm; pygofer, 0.39 mm; valve, 0.25 mm; subgenital plate, 0.46 mm; style, 0.32 mm; connective, 0.39 mm; apodemes, 0.22 mm; aedeagus to process, 0.16 mm; aedeagus to shaft, 0.16 mm; distance at top of aedeagal shafts, 0.17 mm; distance at mid-length of aedeagal shafts, 0.08 mm; female 7th sternite, 0.61 mm. Specimens examined. 74♀ 57♂ , KSA: Asir , Wadi Qounonah : 19°24.67'N , 041°36.39'E , 348 m , Light trap , 11.III.2012 , El-Sonbati, S. , Al Dhafer, H. , Fadl , H., Abdel-Dayem , M., El- Torky , A. & Al Ansi , A .; 1♀ 1♂ , same but Al Mandaq , Wadi Tourabah : 20°14.37'N , 041°15.23'E , 1757 m , 9.III.2012 ; 7♀ 2♂ , same but Thalooth Al Mandhar , Wadi Baqrah : 18°47.98'N , 042°01.38'E , 425 m , 4.VI.2014 , El-Sonbati, S.; 1♀ , same but Al Dhafer H. & Fadl H.; 17♀ 3♂ , KSA: Jazan , Baish , Wadi Baish : 17°22.46'N , 042°32.24'E , LT, 30.I.015, Mashry, H. & Iftekhar, R .; 1♂ , same but Abo Arish Road , Al Ariydah : 17°02.39'N , 042°58.47'E , sweep net , 12.II.2010 , Al Dhafer , H. & A. El-Gharbawy ; 7♂ , same but Wadi Jizan : 17°01.28'N , 042°59.19'E , 158 m , Vacuum , 16.III.2014 , El-Sonbati, S.; 1♂ , same but Al-Dayer : 17°20.39'N , 043°07.86'E , Vacuum , 1.V.2014 , Al Dhafer , H. & El-Sonbati, S .; 3♂ , KSA: Bahah , Shada , Wadi Neera : 19°44.87'N , 041°20.01'E , 471 m , vacuum, 10.XII.2014 , Al Dhafer, H., Fadl, H., Abdel-Dayem, S. & El Torky, A.; 2♀ , Oman : Samad Ashan Arrwdha : 22°53.33'N , 058°13.83'E , 20-30.X.2017 , A. Al-Jahdami. Distribution. Iran ( Dlabola 1960b ); Oman, Saudi Arabia (present study) (Figs 75 , 76 ). Ecology and biology. The abundance of this species varied phenologically between areas of the southwestern region of KSA. Peak abundance in Asir Province occurred in March, whereas in Jazan Province, the peak abundance occurred in January. Most specimens were collected by using light traps, but numerous specimens were also collected in Jazan Province from Tamarix spp. with a sweep net and by a portable vacuuming device. Opsius richteri comprised approximately 36% of the total number of specimens of this genus examined from KSA. This species was especially abundant at Wadi Qounonah, Asir Province, KSA (Figs 77-79 ). Diagnosis. The aedeagus of O. richteri is similar to O. scutellaris with the aedeagal shaft branches diverging but can be distinguished by produced crown, aedeagal shafts and dorsal process distinctively curved or bent inward at base, and shaft branches two times as wide as basal process.