Bees of the genus Sphecodes Latreille 1804 of Siberia, with a key to species (Hymenoptera: Apoidea: Halictidae)
Astafurova, Yulia V.
Proshchalykin, Maxim Yu.
Zootaxa
2015
4052
1
65
95
Astafurova & Proshchalykin
Astafurova & Proshchalykin
[151,759,1665,1691]
Insecta
Halictidae
Sphecodes
Animalia
Hymenoptera
18
83
Arthropoda
species
schwarzi
sp. nov.
Diagnosis.The male of the new species is similar to that of the south-westpalaearctic S. pinguiculusPérezand S. intermediusBlüthgenby the face with apressed white pubescence below as well as above the antennal sockets and the metasomal terga (including T1) densely punctate ( S. pinguiculusgroup). It differs from this species by the short, triangular gonostylus ( Figs 58, 59) (in S. pinguiculusand S. intermediusthe gonostylus is long and almost rectangular).
Description.Male. Structure. Body length 5.0 mm ( Paratypes5.0−5.5 mm). Head weakly transverse, 1.1 times wider than long ( Fig. 63). Vertex short, distance from top of head to upper margin of lateral ocellus about 1.5 lateral ocellar diameters. Genal area slightly narrower than eye in lateral view. Antenna attaining middle of scutum; F1 short, strongly transverse, 0.5 times as long as wide; F2 longest, 1.3 times longer than wide; other flagellomeres 1.1−1.2 times longer than wide. Undersides of F3−F11 with felt-like areas (depression with very short hairs). Feltlike area on F3 covers about 1/2 underside, on F4 and F5 about 1/2−2/3 and on about 4/5 on remaining flagellomeres (Figs 21, 22). S7 slender, arrow-shaped. S8 trapezoidal. Gonocoxite with dorsal depression. Gonostylus small, triangular ( Figs 58, 59). Sculpture. Face densely punctate, with confluent punctures, area between ocelli and eye with punctutes separated by a puncture diameter. Vertex and genal areas rugose. Scutum with deep, round punctures (15−25 µm / 1−4), becoming denser peripherally. Scutellum with coarse and dense punctures (punctures separated by less than a puncture diameter). Mesepisternum reticulate-rugose. Basal part of propodeum (propodeal triangle) with coarse, longitudinal-curved wrinkles or reticulate-wrinkles, rest of propodeum reticulate-rugose. Metasomal terga densely punctate with punctures separeted by at most a puncture diameter; marginal zones impunctate ( Fig. 75); T7 densely and coarsely punctate. Coloration. Body black except as follows: mandible yellow medially, red-brown apically; flagellomeres brown ventrally; tibia yellow proximally and distally; tarsi yellow; stigma and veins yellowish-brown, marginal zones (at least on T1 and T2) yellowish-brown. Vestiture. Face with apressed white pubescence bellow, as well as above antennal sockets ( Fig. 63). FIGURES 89–94.Females: 89–92—scutum; 93, 94—thorax; 89— Sphecodes scabricollisWesmael; 90— S. cristatusHagens; 91— S. albilabris(Fabricius); 92— S. gibbus(Linnaeus); 93— S. ferruginatusHagens; 94— S. hyalinatusHagens. Female.Unknown.
Typematerial( 5 specimens). Holotype, ♂, Russia, Tyva Republic: 32 kmSW Kyzyl, Elegest River, 22.VII.2014, A. Lelej, M. Proshchalykin, V. Loktionov [ ZISP]. Paratypes. Russia. Tyva Republic: ♂, 31 kmNEE Erzin, Erzin River, 16.VII.2014, A. Lelej, M. Proshchalykin, V. Loktionov [ IBSS]. Mongolia, Dornod Aimag: ♂, Derhin-Tsagan-Obo Mts., 60 kmENE Bayan-Burda, 3.VIII.1976, MK; ♂, Khalkhyn Gol [Khalkh River], 70 kmE Bayan-Nur Lake, 1.VIII.1976, M. Kozlov; ♂, Numergin-Gol River, 32 kmSE Salhit Mts., 8.VIII.1976, M. Kozlov [ ZISP].
Etymology.This species is dedicated to the Austrian hymenopterist Maximilian Schwarz in recognition of his outstanding contributions to bee systematics. We appreciate very much his help and encouragement during many years of collaboration.
Distribution. Russia: Tyva Republic; Mongolia: Dornod Aimag. Hosts.Unknown. FIGURES 95–99.Females, metasoma; 95— Sphecodes crassusThomson, T1; 96— S. pinguiculusPérez, T1; 97— S. monilicornis(Kirby), T1; 98— S. reticulatusThomson, T3–T4; 99— S. alternatusSmith, T3–T4.