Quartinia shestakovi Kostylev, 1935

(Figs 7, 11G, 13C–G)

Quartinia shestakovi Kostylev, 1935: 105, fig. 8, ♀ ♂ (type locality: “Tartugaj (Syr-Darjja-Geb.)” [Kazahkstan]), holotype, ♀, ZISP (examined).

Quartinia shestakovi dilutella “Guss. (in litt.)” Popov, 1948: 324, nom. nud.

Material examined. HOLOTYPE: ♀, labeled “[golden disc] // Тартугай [ Tartugay] / 3-15. VI. 1929 / А. Шестакова [A. Shestakova] // Quartinia ♀ / shestakovi Typ / G. Kostylev det. 1932 // Holotype ♀ / Quartinia shestakovi / Kostylev, 1935 [red label] // Zoological Institute / St. Petersburg / INS_HYM_0000333 [pale yellow label]” [ZISP] . PARATYPES: UZBEKISTAN: NW Bukhara, Yargak, 26.V.1928, 1 ♂, leg. L. Zimin [ZISP]; NW Bukhara, Kumak, 14.VI.1929, 16 ♀, 10 ♂, leg. L. Zimin [ 16 ♀, 9 ♂, ZISP; 1 ♂, ZMMU]; 50 km N Bukhara, Bag-Abzal, 5.IX.1931, 2 ♀, leg. A. Zhelochovtsev [ZMMU]; ibid., 10.IX.1931, 3 ♀, leg. A. Zhelochovtsev [ZMMU] . ADDITIONAL MATERIAL: TAJIKISTAN: Dzhilikul [Jilikul], Staraya Pristan, 8.VII.1941, 1 ♂, leg. V. Gussakovskij [ZISP] ; ibid., 12.VII.1941, 1 ♀, leg. V. Gussakovskij [ZISP]; ibid., 13.VII.1941, 2 ♂, leg. V. Gussakovskij [ZISP]; ibid., 17.VII.1941, 11 ♀, 5 ♂, leg. V. Gussakovskij [ZISP]; ibid., 18.VII.1941, 3 ♀, 3 ♂, leg. V. Gussakovskij [ZISP]; ibid., 20.VII.1941, 11 ♀, 3 ♂, leg. V. Gussakovskij [ZISP]; ibid., 21.VII.1941, 8 ♀, 1 ♂, leg. V. Gussakovskij [ZISP]; ibid., 22.VII.1941, 1 ♂, leg. V. Gussakovskij [ZISP]; Staraya Pristan, Vakhsh River, on Halocharis hispida, 12.IX.1948, 1 ♀, leg. V. Popov [ZISP] . UZBEKISTAN: Vicinity of Zarafshon [River], Kumak, 2.VI.1929, 1 ♂, leg. L. Zimin [ZISP]; Dzhuma [Juma] Station, Uzbek alfalfa brigade of ZISP, on Horaninovia ulicina, 23.VII.1937, 3 ♀, 1 ♂, leg. V. Popov [ZISP]; ibid., on Horaninovia ulicina, 25.VII.1937, 12 ♀, leg. V. Popov [ZISP]; Kurgan-Tyube [Qoʻrgʻontepa], Fergana alfalfa brigade of ZISP, on Horaninovia ulicina, 16.VII.1938, 1 ♀, leg. V. Popov [ZISP]; ibid., on Horaninovia ulicina, 25.VII.1938, 1 ♀, leg. V. Popov [ZISP]; Kokand Sands, 40°35′49″N, 70°48′22″E, on Limonium otolepis, 18.V.2023, 1 ♀, 1 ♂, leg. A. Fateryga [CAFK]. KAZAKHSTAN. Akmola Province: 30 km E Kokchetav [ Kokshetau], 16.VII.1977, 1 ♂, leg. V. Kazanas [FSCV].

Distribution. Tajikistan, Uzbekistan, Kazakhstan (Akmola and Kyzylorda provinces).

Trophic relationships. According to Popov (1948), this species is oligolectic on Chenopodiaceae and was recorded at flowers of Horaninovia ulicina Fisch. & C.A. Mey. in Uzbekistan and “ Salsola sp. ” in Tajikistan, but in the latter case he probably meant Halocharis hispida (Schrenk) Bunge mentioned on one label. However, I observed a pair of Q. shestakovi at flowers of Limonium otolepis (Schrenk) Kuntze ( Plumbaginaceae) in Uzbekistan, and at least the male consumed pollen from them (Fig. 7). Therefore, the species is probably polylectic.

Remarks. The specimen from the Akmola Province is lacking both the head and the metasoma. Its identification is preliminary and requires further confirmation. The mesosoma is smaller than that in other specimens of Q. shestakovi but still larger than that of the next species described below.