Quartinia pusilla Kostylev, 1935

Fateryga, Alexander V., 2025, The pollen wasps (Hymenoptera: Vespidae: Masarinae) in Central Asia. Contribution I. Genera Masaris Fabricius, 1793 and Quartinia André, 1884, Zootaxa 5659 (2), pp. 151-178 : 164-166

Quartinia pusilla Kostylev, 1935

( Figs 6 , 11E )

Quartinia pusilla Kostylev, 1935: 104 , ♀ (type locality: “ Krasnovodsk ” [ Turkmenistan]), holotype, ♀, ZISP (examined).

Description of male (hitherto unknown). Body length (from head to apical margin of tergum II) 1.5 mm (total body length about 2 mm); forewing length 1.5 mm. Head in frontal view about 1.3× as wide as long (from top of median ocellus to apical margin of clypeus). Clypeus slightly evenly convex, about 1.5× as wide as long; its apical emargination very shallow, taking about 0.45 of clypeal width, apical teeth blunt. Distance between lateral ocellus and occiput about 0.9× as distance between lateral ocelli and about 1.5× as distance between lateral ocellus and compound eye. Antenna with articles 8–12 forming club about 1.6× as long as wide in dorsal view. Width of gena in front of ocular sinus about 0.4× as width of compound eye at ocular sinus. Occipital carina complete, forming indistinct obtuse angle at lower part of gena. Pronotum with anterior side nearly vertical, roundly angled to dorsal surface. Antero-lateral sides of pronotum broadly rounded in dorsal view; in lateral view, pronotal carina indistinct. Scutellum separated from mesoscutum by transverse suture, moderately convex, broadly rounded posteriorly.Tegula with broadly rounded outer margin produced posterior to blunt medio-posterior angle. Epipleural and episternal sulci distinct. Ventral mesepisternum evenly rounded ventrally. Epicnemial carina indistinct. Dorsal and lateral carinae of propodeum mostly rounded. Terga I–VI and sterna II–VI with transculent apical lamella. Tergum VII apically with two rounded lobes and moderately deep emargination between them. Sternum VII+VIII rather flat, apically trilobed, central lobe broader than lateral ones. Genitalia as in Fig. 11E . Structure of foretibia unknown (not present in studied specimen).

Clypeus dull, with shallow and indistinct punctures. Frons, vertex, and gena finely and sparsely punctate, interspaces moderately shining, distinctly reticulately microsculptured. Pronotum, scutum, scutellum, dorsal and ventral mesepisterna, and mesepimeron also finely and sparsely punctate but punctures slightly larger than those on frons, vertex, and gena, interspaces also moderately shining, distinctly reticulately microsculptured. Other parts of mesosoma and metasoma reticulately microsculptured, without distinct punctures.

Setation weakly developed. Mandible, labrum, clypeus, frons, vertex, and pronotum with minute erect setae much shorter than diameter of median ocellus. Other parts of body mostly without visible setae. Legs from coxae to femora mostly with short appressed setae. Mid and hind tibiae and tarsi with very short setae.

Basal color reddish-brown to dark brown. Following parts pale yellow to yellow: mandible except reddish-brown base, labrum, clypeus, most part of pronotum, tegula (except small brownish antero-central part), large central spot on scutellum, narrow apical band on scutellum, apical bands on terga I–VI, large apical spot on tergum VII, legs from tops of femora. Antenna deep yellow. Wings transparent; veins and pretostigma brown.

Material examined. HOLOTYPE: ♀, labeled “[golden disc] // Красноводск [Krasnovodsk (currently Türkmenbaşy )] / 18.VI.928 / В. Гуссаковский [V. Gussakovskij] // Quartinia ♀ / pusilla, Typ / G. Kostylev det. 1933 // Quartinia / pusilla Kost / Тип. Колл. В. / Гуссаковского [Type. Collection of V. Gussakovskij] / 1941 23 VI [Kostylev’s signature] // МОсКва / ЗООЛОГичесКий / МУЗей МГУ [Moscow, Zoological Museum MSU] // Holotype ♀ / Quartinia pusilla / Kostylev, 1935 [red label] // Zoological Institute / St. Petersburg / INS_HYM_0000379 [pale yellow label]” [ ZISP] . ADDITIONAL MATERIAL: TURKMENISTAN: Repetek , on Alhagi camelorum , 21.VII.1937, 1 ♀, leg. G. Kostylev [ ZMMU]; ibid., on Alhagi camelorum , 22.VII.1937, 1 ♀, leg. G. Kostylev [ ZMMU] . KAZAKHSTAN. Kyzylorda Province : 20 km S Yany-Kurgan [Zhanakorgan], Kyzylkum Desert, 14–15.VII.1990, 12 ♀, 1 ♂, leg. V. Kazenas [ FSCV] .

Distribution. Turkmenistan, Kazakhstan (Kyzylorda Province).

Trophic relationships. The specimens from Repetek were collected at Alhagi maurorum Medik. (= A. camelorum Fisch., Fabaceae ), according to their labels.

Remarks. After the publication of my paper ( Fateryga 2025), curators of both ZISP and ZMMU decided to return the holotype of this species from ZMMU to ZISP, since ZISP was indicated as the depository in the original publication by Kostylev (1935), while the holotype was actually deposited in ZMMU until present.

Figures

FIGURE 6. Quartinia pusilla Kostylev, 1935. A–D, ♂, Kazakhstan; E, ♀, Kazakhstan; F, ♀, Turkmenistan. A, habitus in dorsal view; B, E, F, habitus in lateral view; C, terga VI–VII in dorsal view; D, head in frontal view. Scale bars 0.5 mm.

FIGURE 11. Male genitalia in dorsal view. A, Quartinia chlorotica (Morawitz, 1888); B, Q. funebris Kostylev, 1935; C, Q. mikhaili Fateryga, sp. nov.; D, Q. mongolica (Morawitz, 1889); E, Q. pusilla Kostylev, 1935; F, Q. popovi Richards, 1962; G, Q. shestakovi Kostylev, 1935; H, Q. sovietica Fateryga, sp. nov.; I, Q. uzbeka Kostylev, 1935. Scale bar 0.5 mm.