Bombus semenovianus
Creators: name: Williams, Paul H.
name: Altanchimeg, Dorjsuren
name: Byvaltsev, Alexandr
name: Jonghe, Roland De
name: Jaffar, Saleem
name: Japoshvili, George
name: Kahono, Sih
name: Liang, Huan
name: Mei, Maurizio
name: Monfared, Alireza
name: Nidup, Tshering
name: Raina, Rifat
name: Ren, Zongxin
name: Thanoosing, Chawatat
name: Zhao, Yanhui
name: Orr, Michael C.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Apidae
Bombus
Bombus semenovianus

description: Bombus semenovianus (Skorikov, 1914)
Figs 5, 15, 125–128, 196
Lapidariobombus semenovianus Skorikov, 1914a: 127.
Bombus lapidarius subsp. problematicus Bischoff, 1935: 255.
Our PTP analysis (Fig. 10) of coalescents in the COI gene supports three coalescents for candidate species within the sichelii- group as identified in the four gene species tree (Figs 21–22): B. incertus, B. sichelii s. lat., and the Himalayan B. semenovianus.
From morphology, B. semenovianus is supported by its distinctive colour pattern with the thoracic dorsum entirely yellow (known otherwise only for some males of B. eriophorus from the Caucasus),
by its distinctive form of the male genitalia (see the Diagnosis), and by its slightly enlarged male eye relative to the female eye (Williams, 1991).
Diagnosis
Females (Fig. 5)
Queens medium-sized body length 17–21 mm, workers 11–15 mm. Can be distinguished by the hair on the thoracic dorsum being uniformly bright yellow (cf. B. keriensis, B. separandus, etc.).
Males
Body length 12–16 mm. Can be distinguished by the unique combination of having the eyes slightly enlarged relative to female eye and the hair of the thoracic dorsum being uniformly bright yellow (cf. B. eriophorus, B. qilianensis). Genitalia (Fig. 196) with the gonostylus as long as broad, reduced as a rounded flat scale with the inner basal process reduced to a tooth (cf. rufipes- group, festivus- group, rufofasciatus -group); volsella with the inner distal corner broadly produced but without a narrow hook (cf. rufipes- group, festivus- group, rufofasciatus -group); eye slightly enlarged relative to female eye.
Material examined
Syntype
INDIA • ♀ (queen), syntype of Lapidariobombus semenovianus Skorikov, 1914 (Williams 1991); Kashmir, Ladakh, Stakmo pass; 13 Jul. 1912; G. Jakobson leg.; ZIN (examined PW).
Material sequenced (5 specimens)
PAKISTAN • 1 ♀ (worker); Karakorum, Holshal; 36.1962° N, 74.9496° E; BOLD seq: 1552E07; SEHU: ML187 • 1 ♀ (queen); Chitral, Tirich Valley; 36.3150° N, 71.9824° E; 27 Jul. 1984; W. Budenburg leg.; BOLD seq: 6877G11; PW: ML416 • 1 ♂; Ganokh; 34.7552° N, 76.2808° E; 4 Sep. 2017; S. Jaffar leg.; BOLD seq: 1555E10; UAP: ML258 • 1 ♂; upper Memosh; 34.7093° N, 76.1208° E; 5 Sep. 2017; S. Jaffar leg.; BOLD seq: 1555E11; UAP: ML259 • 1 ♂; same collection data as for preceding; BOLD seq: 6877H06; UAP: ML422.
Global distribution
(West Himalayan mountain species) Himalaya: AFGHANISTAN, PAKISTAN, INDIA: Kashmir. (NHMUK, PW, SEHU, UAP, ZIN, ZSM.) The species is locally common.
Behaviour
Food-plant generalists (Williams 1991). Male mate-searching behaviour is poorly known (Williams 1991).
description: Published as part of Williams, Paul H., Altanchimeg, Dorjsuren, Byvaltsev, Alexandr, Jonghe, Roland De, Jaffar, Saleem, Japoshvili, George, Kahono, Sih, Liang, Huan, Mei, Maurizio, Monfared, Alireza, Nidup, Tshering, Raina, Rifat, Ren, Zongxin, Thanoosing, Chawatat, Zhao, Yanhui & Orr, Michael C., 2020, Widespread polytypic species or complexes of local species? Revising bumblebees of the subgenus Melanobombus world-wide (Hymenoptera, Apidae, Bombus), pp. 1-120 in European Journal of Taxonomy 719 on pages 75-76, DOI: 10.5852/ejt.2020.719.1107, http://zenodo.org/record/4064324