Hedychridium tarbinskyi, Rosa & Agnoli, 2019

Rosa, P. & Agnoli, G. L., 2019, Two new outstanding species of the genus Hedychridium Abeille from Kyrgyzstan (Hymenoptera: Chrysididae), Zoosystematica Rossica (Zoosyst. Rossica) 28 (1), pp. 42-50 : 45-48

Hedychridium tarbinskyi , sp.nov.

( Figs 7–10 )

Holotype. Female , Kyrgyzstan, Northern Tian Shan, Eeastern Terskey Ala Too Range, 4 km S of Teplokluchenka Vill., 25 km SE of Karakol, 2200 m, 15–30.VIII.2000 ( ZIN).

Paratypes. Kyrgyzstan: 4 females, same data as for holotype ( GLAC; PRC) ; 1 female, Northeastern Kyrgyzstan , Terskei Mountain Range, 2000 m, Aksu Figs 5–6. Hedychridium karakolense sp. nov., paratype, male (Kyrgyzstan): 5, habitus, dorsal view (scale bar: 1.0 mm); 6, genital capsula (scale bar: 0.5 mm) .

Vill., 42°28'N, 78°32'E, 24.VIII.1996, leg. S. Zonstein ( IBPB) .

Description. Female: body length 6.8 mm; fore wing length 3.9 mm; OOL = 2.0 MOD; POL = 1.4 MOD; MS = 1.0 MOD; relative length of P:F1:F2:F3 = 1.0:1.3:0.9:0.8.

Head. Frons with double punctation, where small (0.3 MOD) punctures mix with minute ones; face finely and densely punctured laterally, punctures becoming smaller towards clypeus and malar space; face largely polished with scattered punctures along the deep mid line; face asetose; distance between lower margin of midocellus and antennal sockets equal to narrowest interocular distance; subantennal space 1,5 MOD; apex of clypeus triangular and thickened; ocellar triangle isosceles; vertex laterally to posterior ocelli polished; punctation from posterior ocelli to occiput double, with smaller punctures than on frons. F1 2.75 times long; mandibles toothed.

Mesosoma. Pronotal anterior margin with carina largely interrupted medially. Pronotum with deep and irregular punctuation, with differently sized punctures, ranging from 0.6 to 0.1 MOD, irregularly mixed both subcontiguous or with polished interstices. Mesoscutum with similar punctures, yet larger polished interstices (0.2–1.0 PD); notauli and parapsidal furrows deep and complete. Mesoscutellum with relatively smaller punctures, with polished interstices. Mesopleuron rounded ventrally, with large and shallow punctures antero-ventrally. Metanotum slightly shorter than pronotum. Metascutellum with large foveate-reticulate punctures, on postero-lateral margin with small, irregular and elongate punctures. Propodeal teeth triangular, slightly curved like a sickle. Forefemur unmodified not expanded or angulate, hindfemur with an elongate and wide depression on inner surface; hindtarsi unmodified, with second and third tarsomere subequal in length; fifth tarsomere as long as third+fourth. Tarsal claws with a very small submedian tooth, hardly visible. Forewing outer veins scarcely visible, medial vein gently curved; Rs stub as long as R1.

Metasoma. Metasomal terga with minute, shallow, even punctation, punctures 1–3 PD apart, with polished intervals ( Figs 7, 9 ); tergum 2 with smaller and denser punctures on the basal margin. Third tergum with narrow, translucent apical rim on posterior margin. First sternum impunctate, second and third tergum with scattered small punctures, broadly polished; laterotergites minutely and densely punctured on outer side.

Colouration. Head blue with frons and vertex flame red; pronotum, excluding pronotal collar, mesoscutum, metascutellum and mesopleuron flame red to purplish; remaining part of mesosoma blue, with some greenish reflections, laterally and black ventrally; metasoma purplish dorsally and blackish ventrally. Legs metallic green, foreleg golden on outer side; tarsi brownish.

Vestiture. Overall covered by erect, whitish setae, distinctly long (2 MOD) on head laterally, or very long (up to 2.5 MOD) on coxae, trochanters, femora, on second metasomal sternum and on apical margin of third metasomal tergum.

Etymology. The species is named after Yurij Serafimovich Tarbinsky, the most active author on the chrysidid fauna of Kyrgyzstan, who died prematurely without completing the revision of the cuckoo wasps of this Country.

Distribution. Kyrgyzstan.

Figures

Figs 7–10. Hedychridium tarbinskyi sp. nov., holotype, female (Kyrgyzstan): 7, habitus, dorsal view; 8, habitus, lateral view; 9, metasoma, dorsolateral view; 10, head, dorsal view. Scale bar: 1.0 mm.