Cleptes mongolicus Rosa, Halada & Agnoli, 2020

Rosa, Paolo, Proshchalykin, Maxim Yu., Halada, Marek & Aibek, Ulykpan, 2020, First checklist of the chrysidid wasps (Hymenoptera, Chrysididae) of Mongolia, with description of new species, ZooKeys 999, pp. 49-107 : 49

Cleptes mongolicus Rosa, Halada & Agnoli sp. nov. Figures 2 , 3

Type material.

Holotype: ♀, Mongolia: Dornod, 100 km W of Choibalsan, 820 m, 23.VII.2007, leg. M. Halada (ZIN). Paratypes: 1 ♂, same collecting locality and date (GLAC); 1 ♂, 20 km W of Choibalsan, 48°01'N, 114°14'E, 800 m, 24.VII.2007, leg. M. Halada (PRC).

Diagnosis.

Cleptes mongolicus sp. nov. belongs to the C. nitidulus species group, based on the pronotum without posterior pit row and without longitudinal median sulcus or posterior median keel. It is closely related only to C. margaritae Móczár, 2000 from Tajikistan, for its general habitus and colouration. The latter belongs to the C. satoi group ( Móczár 2000), for the modified pronotal structure, without posterior transversal groove, but with a posteromedian longitudinal keel. Besides the unmodified pronotum, the female of C. mongolicus sp. nov. can be easily separated from the female of C. margaritae by: a) pubescence whitish, shorter on metasoma (max 2.5 MOD) (vs. blackish, longer on metasoma, up to 3 MOD); b) punctation on metasoma with polished T1, shallow and sparse tiny punctures on T2, double punctures on T3 (vs. scattered punctate on T1, densely and evenly punctate on T2 and T3); c) colouration: head entirely black; propodeum entirely blue; T3 and T4 laterally blue; pedicel and F1 yellow; femora apically, tibiae and tarsi yellow (vs. head blue; propodeum black with median blue spot; T3 and T4 fully black; pedicel and flagellum dark brown). The male of Cl. margaritae is currently unknown.

Description.

Female. Holotype (Fig. 2A-F ). Body length 4.6 mm. Forewing length 2.7 mm. POL = 2.2 MOD; OOL = 2.7 MOD. MS = 2.0 MOD. P:F1:F2:F3 = 1.0:1.0:0.7:0.7. F1 1.5 × as long as wide, F2 1.1 × as long as wide. Head. Head in frontal view 1.2 × as broad as long between lower edge of clypeus and vertex. Face and vertex with small, even, and sparse punctures (1-4 PD) (Fig. 2B ). Clypeal lower margin simple, unmodified, 2 MOD width, without acute teeth at corners; lateral edges subparallel. Frontal sulcus broad and deep in the first part, from anterior ocellus to mid of face, faint in the second half, from mid-face to the clypeal margin (Fig. 2B ). Mandibles tridentate. Ocellar triangle isosceles, without post-ocellar sulcus. Postero-lateral pits close to posterior ocelli deep and elongate. Pedicel as long as F1. Malar spaces elongate (2.0 MOD). Mesosoma. Pronotum unmodified; pronotal neck finely striated transversally; posterior margin of pronotum simple, without transverse row of pits or median keel. Pronotum with small punctures similar to those on vertex. Mesoscutum and mesoscutellum scarcely punctate, with tiny and scattered punctures (Fig. 2C ), largely impunctate; notauli and parapsidal lines deep and complete. Mesopleuron with small, deep punctures; transversely aligned medially; with short, deep scrobal sulcus on posterior half (Fig. 2D ). Metascutellum noticeably reduced by large metanotal trough and by deep and large anteromedian suture. Metapleuron transversely striate. Metapostnotum (dorsal surface of metapectal-propodeal complex) short, irregularly reticulate, with large foveae along posterior margin, before the propodeal declivity. Propodeal posterior projections short, stout, and divergent. Wing veins and cells unmodified. Metasoma. All metasomal terga with impunctate, brownish stripe along posterior margin (Fig. 2F ); T1 mostly impunctate, with a few, sparse, tiny punctures; T2 with even, sparse, small punctures (3-5 PD), posteromedially polished; T3 with dense, irregular and double punctation; scattered to polished toward the apical margin; T4 with large, scattered punctures. Colouration. Head black, with violet reflections medially on clypeus; scapus dorsally violet, ventrally brownish without metallic reflections; P light brown and F1 yellow; other flagellomeres dark brown to blackish. Mandible dark brown, medially yellowish. Pronotal neck medially black; pronotum, mesonotum, mesopleuron, metanotum (excluding black anterior suture and axillary trough), metapleuron metallic red with purple reflections dorsally; propodeum dorsally blue, propodeal declivity black; body ventrally black. Metasoma entirely black; apical margin of each tergum with brownish stripe; laterally on T3 with feeble green reflections; laterally on T4 with extended blue reflections (Fig. 2E ). Tegulae brown. Legs with tibiae and tarsi yellowish; coxae red to golden; profemur anteriorly metallic red excluding distal joint; metafemur posteriorly metallic; other parts brown.

Male. Paratypes. Body length 4.0-4.2 mm. POL = 1.6 MOD; OOL = 1.0 MOD. MS = 1.9 MOD. P:F1:F2:F3 = 1.0:1.4:0.9:0.9. F1 3.5 × as long as wide (width taken at distal apex), F2 1.5 ×. Head. Head in frontal view 1.3 × as broad as long between lower edge of clypeus and vertex. Face and vertex with small, even, and denser punctures (1-2 PD) compared to female (Fig. 3B ). Frontal sulcus narrow and visible in the first part, from anterior ocellus to brow, faint in the second half, from mid-face to the clypeal margin (Fig. 3B ). Lower face medially with punctures more spaced 4-5 PD. Ocellar triangle, post-ocellar sulcus, and posterolateral pits similar to female. F1 1.5 × as long as P. Mesosoma. Punctation overall similar to that of female; metascutellum larger, with narrow anteromedian mesoscutellar-metascutal suture; metapleuron polished. Other characters as in female. Metasoma. T1 with denser (2-5 PD), tiny punctures; T2 with even, denser (1-3 PD), small punctures (3-5 PD), posteromedially sparser to polished; T3 with dense, irregular and double punctation; scattered to polished toward the apical margin; T4 with similar punctures; T5 almost polished, with scattered punctures. Colouration. Species sexually dimorphic with head and mesosoma bright green, including ventral side; propodeum blue. Mandible metallic green from base to half length. Scapus green, pedicel and flagellum black. Metasoma entirely black, with terga apically brownish and laterally with feeble blue reflections on T3 and T4 (Fig. 3E ). Tegulae brown. Coxae and femora medially green; trochanters brown, femora distally and tarsi yellowish.

Etymology.

The specific epithet is named after the country of origin.

Distribution.

Mongolia (Dornod).

Figures

Figure 2. Cleptes mongolicus sp. nov., female, holotype A habitus, dorsal view B head, frontal view C head and mesosoma, dorsal view D head and mesosoma, lateral view E metasoma, postero-lateral view F metasoma, dorso-lateral view. Scale bars: 1.0 mm.

Figure 3. Cleptes mongolicus sp. nov., male, paratype A habitus, dorsal view B head, frontal view C head and mesosoma, dorsal view D mesosoma, lateral view E metasoma, postero-lateral view F metasoma, dorsal view. Scale bars: 1.0 mm.