Pseudoanthidium ivanovi
Creators: name: Kasparek, Max
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Megachilidae
Pseudoanthidium
Pseudoanthidium ivanovi

description: Pseudoanthidium ivanovi (Mavromoustakis, 1954) stat. resurrect. & comb. nov.
(Figs 5, 20, 22)
Anthidium ivanovi Mavromoustakis, 1954.—Female, Tajikistan.
Anthidium (Pseudoanthidium) ivanovi (Mavromoustakis, 1954).— Warncke (1980).
non Pseudoanthidium obscuratum (Morawitz, 1875).— A. ivanovi is regarded as a junior synonym of P. obscuratum in secondary sources such as by ITIS (2023) and Ascher & Pickering (2024).
The species was not included in Pasteels’ (1969) revision of the genera of Old World Anthidiini. Warncke (1980) listed the species but did not include it in his consecutive numbering of species, nor did he include it in his key.
Material examined: AFGHANISTAN: 1♀, Bamiyan: 30 km SE Bamiyan, Kohi-Bana Mountains, near Hajigak Pass (c. 34.60°N 68.05°E), 3700–4000 m, 04.viii.2011, O. Pak leg. (CMK: mk1537).
Other material. The female holotype is deposited in the Mavromoustakis’ collection, Nicosia, Cyprus (MoA 1989). It was not available for this study.
Genetic barcode information. Genetic barcode of specimen mk1537 available (ABABQ 177-24). A BIN has not yet been assigned.
Diagnosis (female). Characterized by a narrow, shining flange on each side of the middle of T6 combined with impunctate, polished areas around the ocelli; apical ridge of the clypeus shining, protruding slightly above disc, with shallow tubercles.
Description. Female. 7 mm long.— Head: Black, except for a yellow triangular postocular maculation; clypeus densely punctate, finer towards apical margin; basal area (anterior margin) polished and impunctate, very narrowly at sides and somewhat broadly in the middle (Fig. 20); subapical area transversely depressed, very finely rugosely punctured; apical ridge thickened with some shallow denticles, polished; mandible yellow, but reddish brown towards the margins; with four (possibly five) low, black teeth; supraclypeal area densely punctate except for apical margin; vertex densely punctate except for impunctate, polished area around ocelli; postocular yellow stripe (holotype) or triangular yellow spot (Afghanistan specimen); vertex length 2.25 x the diameter of the posterior ocellus; face around antennal sockets and gena with long silvery hair.— Mesosoma: Scutum densely punctate (Fig. 4c), slightly finer than on vertex; pronotal lobe with high lamella; outer margin of scutellum and axilla widely rounded in dorsal view; apical margin with a very broadly interrupted yellow stripe (holotype) or entirely black (Afghanistan specimen); no axillar suture visible; mesepisternum with long white hair; omaulus widely rounded.— Metasoma: Punctation on T1–T5 fine, T1 with impunctate apical margin; punctation on T2–T5 practically reaches outer margin; punctation on T6 irregular, somewhat rugulose; T1 with broad yellow stripe broadly interrupted in the middle and attenuated inwards (holotype; only short lateral stripe in the Afghanistan specimen); T2 with yellow band almost reaching the middle; T3 with yellow band on each side, subcontiguous in the middle; T4–T5 with yellow band, notched in the middle; T6 black with median, transverse, interrupted yellow stripe (holotype, entirely black in the Afghanistan specimen); T6 trapezoid, with a shallow lamellate flange on each side of the middle (Figs 4b, 22); outer margin of S6 rounded; scopa in the middle blackish brown, lighter at margins.— Legs: Femora black with some yellowish red apically; tibiae bright yellow; tarsi reddish yellow; hind basitarsi with dense light golden hair on inner face.
Note: Warncke (1980) mentioned that P. ivanovi has only half of the vertex length of P. melanurum. Specifically, the vertex length is 2.25 x the diameter of the posterior ocellus, while it is 3.3 x the diameter of the posterior ocellus in P. melanurum. However, it is unlikely that Warncke (1980) examined the type material of P. ivanovi in the Mavromoustakis collection, and therefore it is not clear what Warncke’s statement is based on.
Male. Not known.
Distribution. Afghanistan and Tajikistan (Fig. 26b). The holotype was collected at Khorog (Chorog), Tajikistan (37°30′N, 71°33′E), at 2,200 m above sea level in the Pamir Mountains at the border with Afghanistan. The new material was collected at 3700–4000 m above sea level in the Baba Mountains (Kōh-i Bābā or Kūh-e Bābā), a western extension of the Hindu Kush, Afghanistan. It is the highest place where Pseudoanthidium has been collected so far.
description: Published as part of Kasparek, Max, 2024, New species, new synonyms, and resurrected taxa: A review of West and Central Palaearctic members of the genus Pseudoanthidium (Apoidea: Megachilidae), pp. 1-50 in Zootaxa 5541 (1) on pages 10-11, DOI: 10.11646/zootaxa.5541.1.1, http://zenodo.org/record/14240734