Bombus (Alpigenobombus) genalis Friese, 1918

Williams, Paul H., An, Jiandong, Dorji, Phurpa, Huang, Jiaxing, Jaffar, Saleem, Japoshvili, George, Narah, Jaya, Ren, Zongxin, Streinzer, Martin, Thanoosing, Chawatat, Tian, Li & Orr, Michael C., 2023, Bumblebees with big teeth: revising the subgenus Alpigenobombus with the good, the bad and the ugly of numts (Hymenoptera: Apidae), European Journal of Taxonomy 892 (1), pp. 1-65 : 41-42

publication ID

https://doi.org/ 10.5852/ejt.2023.892.2283

publication LSID

lsid:zoobank.org:pub:07D215E7-FB43-4640-BB5B-D1AF50269AF1

DOI

https://doi.org/10.5281/zenodo.10023220

persistent identifier

https://treatment.plazi.org/id/1A438786-7907-041C-9EE7-FB2DFAD4F993

treatment provided by

Plazi

scientific name

Bombus (Alpigenobombus) genalis Friese, 1918
status

 

8. Bombus (Alpigenobombus) genalis Friese, 1918 View in CoL

Figs 6 View Figs 1‒9 , 74‒75 View Figs 19–105 , 113 View Figs 106–115

Bombus genalis Friese, 1918: 84 View in CoL .

Species-taxon concept and variation

The taxon concept of the species B. genalis here agrees with the long-standing interpretation (Williams 2022a) that it is separate from the taxon concepts of other species in the subgenus Alpigenobombus , based on: (1) our PTP analysis supports independent species-level coalescents in the COI gene ( Fig. 12 View Fig ); corroborated by (2) diagnostic morphological character states (see the keys).

The PTP and morphological results ( Fig. 12 View Fig , keys) support the interpretation that B. genalis and B. breviceps are separate species. The available COI-barcode-like sequences may all be low-divergence neonumts ( Fig. 11 View Fig ).

No substantial colour-pattern variation is known for B. genalis (Figs 74‒75). Bombus genalis , with its black with orange-legged colour pattern, appears to mimic the common B. (Pyrobombus) flavescens Smith, 1852 , and B. (Melanobombus) eximius Smith, 1852 ( Williams 2007: fig. 5a).

Type material

Bombus genalis Friese, 1918: 84 View in CoL . Syntypes: ♀♀ (queen and worker) Sikkim, India ( ZMHB). Examined .

Morphological diagnosis

Female

Wings pale yellow with the veins light orange (unique within the subgenus Alpigenobombus ), hair short, oculo-malar area shorter than broad, clypeus in its central area shining with only a few small and large widely-spaced punctures (cf. B. breviceps ); mid and hind tibiae exoskeleton and hair bright orange, hair of the thoracic dorsum and T1 black.

Male

Wings pale yellow with the veins light orange (unique within the subgenus Alpigenobombus ), hair short, oculo-malar area shorter than broad; genitalia ( Fig. 113 View Figs 106–115 ) with the gonostylus nearly equally short on both its outer side and its inner side but with the distal lobe projecting inwards as a long broadly triangular acutely pointed process, triangular in section (cf. B. breviceps , B. grahami ); mid and hind tibiae exoskeleton and hair bright orange, the hair of the scutellum and T1 predominantly black.

Material sequenced in Fig. 12 View Fig

CHINA • 1 ♀ (worker); Xizang, Linzhi ; 29.5710° N, 95.4633° E; 29 Aug. 2015; Q.-T. Wu leg.; IOZ seq: FPW12; IOZ: AG#184 GoogleMaps .

Additional sequences in Fig. 10 View Fig and haplotype duplicates

CHINA • 1 ♀ (worker); Yunnan, Guanshizhai ; 25.9334° N, 98.8008° E; 18 Aug. 2011; PW seq: PWB9; IAR: AG#040 GoogleMaps 1 ♀ (worker); Xizang, Miyuecun ; 29.4065° N, 95.3721° E; 18 Aug. 2015; Q.-T. Wu leg.; IOZ seq: FPW13; IOZ: AG#185 GoogleMaps .

INDIA • 2 ♀♀ (workers); Arunachal Pradesh, Salaya ; 27.5969° N, 93.851° E; 22 Jun. 2018; J. Narah leg.; NCBS seq: BG463 BG471; NCBS: AG#200 View Materials , AG#201 View Materials GoogleMaps 1 ♀ (worker); Arunachal Pradesh, Hari ; 27.5838° N, 93.8446° E; 27 Sep. 2015; NCBS seq: BE637; NCBS: AG#202 View Materials GoogleMaps .

Global distribution

Himalaya and borders of southern Hengduan: India (Sikkim, Arunachal Pradesh), China (Xizang, Yunnan), Myanmar: IAR, IOZ, NCBS, NHMUK, PW, ZMHB.

This is an uncommon species and few individuals have been recorded. This species is recorded at elevations of 1561‒1852 m in the Himalaya in the middle forest zone ( Streinzer et al. 2019).

Behaviour

Male eye very slightly enlarged relative to female eye, male mate-searching behaviour unknown.

ZMHB

Germany, Berlin, Museum fuer Naturkunde der Humboldt-Universitaet

PW

Paleontological Collections

NCBS

Yale University

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hymenoptera

Family

Apidae

Genus

Bombus

Loc

Bombus (Alpigenobombus) genalis Friese, 1918

Williams, Paul H., An, Jiandong, Dorji, Phurpa, Huang, Jiaxing, Jaffar, Saleem, Japoshvili, George, Narah, Jaya, Ren, Zongxin, Streinzer, Martin, Thanoosing, Chawatat, Tian, Li & Orr, Michael C. 2023
2023
Loc

Bombus genalis

Friese H. 1918: 84
1918
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