Bombus humilis quasimuscorum (Vogt, 1909)

Ornosa, Concepción, Torres, Félix & Rúa, Pilar De La, 2017, Updated list of bumblebees (Hymenoptera: Apidae) from the Spanish Pyrenees with notes on their decline and conservation status, Zootaxa 4237 (1), pp. 41-77 : 60

Bombus humilis quasimuscorum (Vogt, 1909)

It is widely distributed in the northern half of the peninsula, between 150 and 2000 m ( Ornosa & Ortiz-Sánchez 2004).

At present it has been collected in Pyrenean forest and supraforestal grassland, more rarely in the latter, and in open areas, between 850 and 1950 m ( Fig. 7 ) on Acinos alpinum (L.), Centaurea scabiosa L., Cirsium monspessulanum (L.) Hill, Echium plantagineum (Nox.) , Echium vulgare L. , Epilobium angustifolium L., Eryngium bourgatii Gouan. , Fragaria vesca L., Lotus corniculatus L., Malva sylvestris L., Medicago sativa L. , Melilotus officinalis L., Mentha longifolia (L.) Hud., Origanum vulgare L., Reseda lutea L., Rhododendron ferrugineum L., Rubus ulmifolius Schott , Silene acaulis (L.) Jacq., Taraxacum officinale Wigg. , Trifolium pratense L. , Trifolium repens L. and Vicia cracca L.

According to the current data, this species exhibits greater orophilous tendency in its lower level ( Fig. 7 ), but it is not regarded as being scarce or threatened ( Table 2 ).

New records. Spain: Girona: La Molina, ski resort, 9- VII-2015, 1 queen, 2 workers, F. Torres leg., UCME ; Setcases , 23- VII-2009, 4 workers, C. Ornosa leg., UCME ; Sort pass track, 12- VIII-2012, 3 workers; 14 - VIII-2012, 2 workers, P. De la Rúa leg., UMU; Ribes de Freser, 9- VII-2015, 1 queen, 5 workers, C. Ornosa, UCME; Sant Joan de les Abadesses, 8- VII-2015, 1 queen, C. Ornosa leg., UCME. Huesca : Baños de Benasque, 14- VII-2011, 11 worker, C. Ornosa leg., UCME ; Benasque , 15- VII-2011, 10 workers, C. Ornosa leg., UCME ; Biescas , 10- VIII- 2014, 2 males, 1 worker, E. Acosta leg., UMU; Canfranc, 3 - VII-2006, 4 workers, C. Ornosa leg., UCME; Cerler , 13- VII-2011, 3 workers, C. Ornosa leg., UCME ; Formigal , ski resort, 9- VII-2009, 1 queen, C. Ornosa leg., UCME ; Linás de Broto , 12- VII-2013, 9 workers, C. Ornosa leg., UCME ; Ordesa , Gradas de Soaso, 4- VII-2006, 2 workers; Ordesa, Laña Sarratieto, 10 - VII-2013, 1 worker, F. Torres; UCME; Panticosa , 5- VI-2006, 1 worker, C. Ornosa leg., UCME ; Las Cutas track, 11- VII-2013, 2 queens, C. Ornosa leg., UCME ; San Nicolás de Bujaruelo , 9- VIII-2014, 1 male, 9 workers, P. De la Rúa leg., UMU; Selva de Oza, 10 - VII-2009, 2 workers, C. Ornosa leg., UCME; Selva de Oza , Aguas Tortas track, 10- VII-2009, 1 queen, C. Ornosa leg., UCME ; Zuriza , 5- VI-2006, 5 workers, C. Ornosa leg., UCME . Lleida : Aigüestortes threshold, 7- VII-2014, 1 queen, C. Ornosa leg., UCME ; Artiga de Lin , 15- VIII- 2012, 2 males, 2 workers, P. De la Rúa leg., UMU; San Nicolás chapel-Estany Llebrera, 9 - VII-2014, 2 workers, C. Ornosa leg., UCME; Espot , 25- VII-2006, 1 worker; 07 - VII-2014, 2 queens; C. Ornosa leg., UCME; 12- VIII-2012, 2 males, P. De la Rúa leg., UMU. Espot, ski resort, 8- VII-2014, 3 queens, 1 worker, C. Ornosa leg., UCME; Ruda track, 10- VII-2014, 4 queens, 2 workers, C. Ornosa leg., UCME ; Salardú , 27- VII-2006, 1 male, 1 worker, C. Ornosa leg., UCME .

Figures

FIGURE 7. Distribution (in meters) range of the bumblebee species and subspecies observed in contemporary samplings (grey rectangles) in the Pyrenees compared with the known altitude distribution (black bars) from historical data.