Sphecodes Astafurova & Proshchalykin, 2015, sp. nov.

• Main Authors: Astafurova, Yulia V., Proshchalykin, Maxim Yu.
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2015
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Insecta; Hymenoptera; Halictidae; Sphecodes; Yakutsk; Siberia
• Online Access: https://doi.org/10.5281/zenodo.5619723; http://treatment.plazi.org/id/9468AA7BFA60FFA6BCCFFAEB3AB5F96D

Key to the Sphecodes species of the Siberia and Mongolia Females Note: The female of S . kozlovi Astafurova et Proshchalykin and S . schwarzi , sp. nov. is unknown. Additional characters that are not unique but are useful in the identification of some species are indicated in parentheses. *Females of this vicarious species are very difficult to distinguish morphologically; however, S. nippon is distributed in the East Palaearctic to Baikal Lake on the West, whereas S. gibbus is distributed in the West Palaeractic to Baikal Lake and Yakutsk on the East. 1. Preoccipital carina present along vertex only. F2 square, as long as wide, remaining flagellomeres distinctly longer than wide. (Head strongly transverse, 1.25 times wider than long. Scutum densely punctate, punctures separated mostly by less than a puncture diameter. Body length 8.0–11.0 mm). S. spinulosus Hagens - Preoccipital carina not developed or present laterally behind eye only. F2 transverse 0.5–0.7 times as long as wide, remaining flagellomeres square or slightly longer than wide. 2 2. Hind wing with 7–14 hamuli; with basal ( M ) vein weakly curved (Fig. 112). Usually large species: body length 6.0–15.0 mm. 3 - Hind wing with 5–6 hamuli; with basal ( M ) vein strongly curved (Fig. 111). Large or small species: body length 4.5–11.0 mm. 10 3(2). Vertex weakly elevated, with longitudinal sharp carina (Fig. 101). (Head strongly transverse, 1.2 times wider than long. Scutum and scutellum sparsely punctate, medially with punctures separeted by mostly 1–3 puncture diameters; Fig. 90. Pygid- ium slightly narrower than hind basitarsus. Body length 6.0–8.0 mm). S. cristatus Hagens - Vertex strongly elevated, acarinate, but sometimes with weak (indistinct) longitudinal ridge. 4 4(3). Genal area flat. Preoccipital lateral carina developed. (Head strongly transverse, 1.3 times wider than long. Vertex short, distance from top of head to upper margin of lateral ocellus about two lateral ocellar diameters; Fig. 87. Scutum densely punctate and medially with punctures ...