Lithostege infuscata, Eversmann

Sh, Hossein Rajaei, Stüning, Dieter & Viidalepp, Jaan, 2011, A review of the species of Lithostege Hübner, [1825] 1816 (Lepidoptera: Geometridae, Larentiinae), occurring in Iran and adjacent countries, with description of two new species from Iran and Pakistan, Zootaxa 3105, pp. 1-46 : 24

L. infuscata (Eversmann)

( Figs. 30 , 56 , 75 ; Map 7)

Minoa infuscata Eversmann, 1837: 63 . Holotype Ƥ, ZISP (examined). Type locality: Sarepta [= Volgograd], Russia. Lithostege griseata: Prout, 1914: 172 (jun. syn.).

Lithostege griseata ab. infuscata: Prout, 1937: 84 .

Lithostege infuscata: Prout, 1938: 238 ; Viidalepp, 1988: 20; 1996: 47; Parson et al., 1999: 546.

Material examined. Type material: Holotype Ƥ: ‘[ Russia, Volgograd] Sarepta’, ‘III. a’, ‘coll. Acad. Petrop.’, ‘ Holotype: Ƥ Lithostege infuscata Eversmann , det.: V. Mironov, 1998’; in ZISP. Additional material: 18 3, 20 Ƥ: 15 3, 11Ƥ: NW-Iran, 15 km sö Maku, 1050 m, 3.6.1975, H.G. Amsel leg., preps 3 1032 and Ƥ 1033/2010 H. R.; 1 Ƥ: NW-Iran, 25 km nö. Khoy, 1000 m, 7.6.1975, H. G. Amsel leg.; 2 Ƥ: NW-Iran, 17 km nw. Maku, 1400 m, 4.6.1975, H.G. Amsel leg.; 1 Ƥ: Moghan [Ardabil prov.], [leg.] Damn [Damanabi]; all in SMNK. 1 3, 1Ƥ: Keredj [Karaj], Iran, 1800 m, Brandt.-B.-Salz, coll. Dr. Wehrli, preps Ƥ 1029/2010 and 3 1030/2010 H. R.; both in ZFMK. 1 3: Persia [ Iran], Keredj [Karaj], leg. Brandt 1936, subfuscata det. A. Hausmann, Sammlung Osthelder, ZSM 3 genital prp. No. 4471; 1 3, 1Ƥ: [ Iran] Azarbayjan, Marand, 1050 m, 4.6.1975, [leg.] Abai; in HMIM. 2 Ƥ: Russ [ia], Armen, Erivan, 13.V. [1]925, [leg] Rjabov; 16 15, gen. prep. 1036/2010 H. R.; 1 Ƥ: Tadzhikistan, Parhar vic., Karatau Mts., 22.05.1987, V. G. Mironov leg.; in IZBE. Preparations of genitalia: 3 3, 3 Ƥ.

Description & Diagnosis. Wingspan 22–25 mm. Forewings brownish grey, darker distally, hindwings a little lighter, both without pattern. Underside like upperside ( Fig. 30 ). The similar, but larger and darker grey L. flavicornata is also clearly distinguishable by the genitalia. Male genitalia ( Fig. 56 ) with valves narrow, sclerotized costa very short, with a very large, triangular projection. Harpe with a long, upright, distally curved process, dorsal arm strong, stout, with long spines terminally. Aedeagus long, narrow, straight. Female genitalia ( Fig. 75 , holotype) characterized by trapezoid, posteriorly concavely rounded sterigma, with inserted triangular ostium orifice; ductus bursae tubular, corpus bursae globular, completely spined internally, large diverticulum present.

Bionomics. Specimens studied are collected in May and June at altitudes of 1000–1800 m.

Additional data on distribution based on literature sources. Falkovitsh (1986): Uzbekistan; Prout (1937 – 1939): Karaj (Tehran prov.).

Distribution. S Russia to Armenia and N Iran; distribution areas in southern Uzbekistan and western Tajikistan probably disjunctive (Map 7).

Figures

FIGURES 27 – 31. Adult moths of Lithostege Hübner (left column, a: upperside, right column, b: underside). 27. L. palaestinensis (Ƥ, Ahvaz, SW Iran); 28. L. luminosata (3, Kyzyl-Arvat, Turkmenia); 29. L. luigi (Ƥ, Badkhyz, Turkmenistan); 30. L. infuscata (Ƥ, Karaj, Iran); 31. L. flavicornata (3, Ak-Chehir, Turkey). Scale bar: 10 mm.

FIGURES 56 – 59. Lithostege Hübner: Male & female genitalia. 56 - 57: Male genitalia. 56. L. infuscata (gen. prep. 1032 H. R.; Maku, NW Iran), a: genital capsule, b: aedeagus, lateral view; 57. L. flavicornata (gen. prep. 1062 H. R.; Ak-Chehir, Turkey), a: genital capsule, b: aedeagus, lateral view; Figs 58 - 59: Female genitalia. 58. L. amoenata (gen. prep. 1023 H. R.; Nikolajevsky pass, Tajikistan); 59. L. distinctata (gen. prep. 1618 H. R.; Kurgan, Turkmenistan). Scale bar: 1 mm.

FIGURES 72 – 76. Lithostege Hübner: Female genitalia & details of abdominal integument. 72. L. palaestinensis (gen. prep. 781 H. R.; Varamin, N Iran), a: genital organ, b: 7 th tergite; 73. L. luminosata (gen. prep. J. V.; Parhai, Turkmenistan); 74. L. luigi (gen. prep. 3688 J. V; Badkhyz, Turkmenistan); 75. L. infuscata (gen. prep. 1036 H. R.; Erivan, Armenia); 76. L. flavicornata (gen. prep. 1031 H. R.; Ak-Chehir. Turkey). Scale bar: 1 mm.