Quartinia kozlovi Fateryga, 2025

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 : 157-158

Quartinia kozlovi Fateryga , sp. nov.

( Fig. 2 )

Diagnosis. The species is unique among other Central Asian members of the genus Quartinia in having the outer margin of the tegula not produced posterior to roundly-acute posterior end and the posterior end not produced medio-apically ( Fig. 2A ), completely dull frons and scutum, with a strong reticulate microsculpture between macropunctures ( Fig. 2A, C ), and predominately yellow coloration ( Fig. 2A–D ).

Description. Female. Body length (from head to apical margin of tergum II) 2.5 mm (total body length about 3.5 mm); forewing length 2 mm. Head in frontal view about 1.3× as wide as long (from top of median ocellus to apical margin of clypeus). Clypeus moderately and rather evenly convex, about 1.45× as wide as long; its apical emargination shallow, about 0.2× as deep as wide, taking about 0.5 of clypeal width, apical teeth blunt. Distance between lateral ocellus and occiput about 0.75× as distance between lateral ocelli and about 1.1× as distance between lateral ocellus and compound eye. Antenna with articles 8–12 forming club about 2.15× as long as wide in dorsal view. Width of gena in front of ocular sinus about 0.5× as width of compound eye at ocular sinus. Occipital carina smoothened at lower part of gena and not forming angle. 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, slightly convex, roundly truncate posteriorly. Tegula with posterior end not produced; outer margin of tegula not produced posterior to roundly-acute posterior end. Epipleural and episternal sulci distinct. Ventral mesepisternum evenly rounded ventrally. Epicnemial carina indistinct. Dorsal and lateral carinae of propodeum smoothened. Terga I–V and sterna II–V with transculent apical lamella.

Clypeus dull, reticulately microsculptured, without distinct punctures. Frons and vertex sparsely punctate with very shallow punctures, interspaces exceeding puncture diameter, dull, reticulately microsculptured. Gena without visible punctures, similarly to clypeus. Pronotum, scutum, and scutellum sparsely punctate similarly to clypeus but punctures slightly deeper, interspaces also exceeding puncture diameter, dull, reticulately microsculptured. Other parts of mesosoma and whole metasoma mostly without punctures, reticulately microsculptured.

Setation weakly developed. Mandible covered with thin erect whitish setae about as long as diameter of median ocellus. Clypeus with erect whitish setae reaching in length 2/3 of diameter of median ocellus; frons and vertex with erect whitish setae reaching in length 1/3 of diameter of median ocellus. Compound eye bare. Mesosoma without visible setae. Metasoma and legs from coxae to femora mostly with short appressed setae. Tibia and tarsus of foreleg with erect stiff setae approximately as long as diameter of median ocellus, those setae on mid and hind legs much shorter.

Coloration predominately yellow except the following: compound eye and ocelli dark, propleuron and lower part of ventral mesepisternum brown, dorsal side of antennal club, large spot on frons, ventral side of pronotum, most part of scutum, most part of ventral mesepisternum, mesepimeron, metapleuron, lateral surface of propodeum, and basal parts of metasomal terga light reddish-brown to ferruginous. Wings transparent; veins and pretostigma brownish-yellow.

Male. Unknown.

Material examined. HOLOTYPE: ♀, labeled “окр. Урги / с. МонголиЯ / КОЗЛОв [Vicinity of Urga (currently Ulaanbaatar), N Mongolia, Kozlov ] 1–4.VI.909 // Holotypus ♀ / Quartinia kozlovi / Fateryga [red label] // Zoological Institute / St. Petersburg / INS_HYM_0000374 [pale yellow label]” [ ZISP].

Etymology. The new species is named after Petr K. Kozlov (1863–1935), a famous Russian and Soviet traveler and explorer of Central Asia, who collected the holotype.

Distribution. Mongolia.

Trophic relationships. Unknown.

Figures

FIGURE 2. Quartinia kozlovi Fateryga, sp. nov., ♀, holotype. A, habitus in dorsal view; B, habitus in lateral view; C, head in frontal view; D, terga II–VI in dorsal view; E, labels. Scale bars 0.5 mm.