Bombus ruderarius ruderarius (Müller, 1776), Muller, 1776

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 : 64

Bombus ruderarius ruderarius (Müller, 1776)

This bumblebee has a Pyrenean distribution between 1175 and 2250 m altitude, preferably on grassland areas of fir, beech and oak ( Ornosa & Ortiz-Sanchez 2004).

At present it has been collected in forest and supraforestal pastures, especially in grasslands of open forests with Pinus uncinata , Abies alba . and scattered patches of subalpine scrub with blueberry, creeping juniper, rhododendron and heather, between 1000 and 2125 m ( Fig. 7), on Acinos alpinus (L.) Moench, Cirsium arvense (L.) Scop., Cirsium acaule (L.) Scop., Eryngium bourgatii Gouan. , Gentiana lutea L., Lonicera pyrenaica L., Lotus corniculatus L., Medicago sativa L. , Rhododendron ferrugineum L., Silene acaulis (L.) Jacq., Taraxacum officinale Wigg. , Trifolium alpinum L., Trifolium pratense L. , Trifolium repens L. Vicia cracca L. and Vicia sativa L.

This species has been recorded below its usual altitude range ( Fig. 7), and it is not regarded as being scarce or threatened ( Table 2).

New records. Andorra: Soldeu, 28- VII-2006, 2 males, 2 workers C. Ornosa leg., UCME.

Spain: Girona: Camprodón , ski resort, 23- VII-2009, 1 worker, C. Ornosa leg., UCME ; Nùria, Bosc de la Verge , 24- VII-2009, 2 workers, C. Ornosa leg., UCME ; La Molina road, 25- VII-2009, 3 workers, C. Ornosa leg., UCME ; La Molina, Roc Blanco , 25- VII-2009, 1 male, C. Ornosa leg., UCME ; La Molina , ski resort, 9- VII-2015, 2 workers, C. Ornosa leg., UCME ; Nùria , 24- VII-2009, 2 workers, C. Ornosa leg., UCME ; Nùria, Pic de l´ Àliga , 24- VII-2009, 1 queen, 2 workers; 10 - VII-2015, 1 worker, C. Ornosa leg., UCME; C. Ornosa leg., UCME; Nùria, Bosc de la Verge, 10- VII-2015, 2 workers, C. Ornosa leg., UCME; Setcases , 23- VII-2009, 1 worker, C. Ornosa leg., UCME . Huesca: Baños de Benasque , 14- VII-2011, 1 worker, C. Ornosa leg., UCME ; Canfranc , ski resort, 3- VII- 2006, 1 queen, C. Ornosa leg., UCME ; Formigal , 9- VII-2009, 1 queen, 2 workers, C. Ornosa leg., UCME ; Formigal , ski resort, 9- VII-2009, 3 workers, C. Ornosa leg., UCME ; Ordesa, Circo de Soaso , 10- VII-2013, 2 queens, 1 worker, C.Ornosa leg.; Ordesa, Gradas de Soaso, 4 - VII-2006, 1 male, 7 workers; 10- VII-2013, 1 queen; C. Ornosa leg., UCME; 8-VIII- 2 014, 2 workers, E. Acosta leg., UMU; Ordesa, Laña Sarratieto, 10- VII-2013, 1 queen, 1 worker, C. Ornosa, UCME; Panticosa , alto, 5- VI-2006, 1 worker, F. Torres leg., UCME ; S. Nicolás de Bujaruelo, 9- VIII-2014, 3 males, 1 worker, P. De la Rúa leg., UMU; Selva de Oza, 10- VII-2009, 4 workers, C. Ornosa leg., UCME; Zuriza , 5- VI-2006, 1 worker, C. Ornosa leg., UCME ; Zuriza track, 12- VIII-2014, 2 males, E. Acosta leg., UMU Lleida: Baños de Tredós, 10 - VII-2014, 1 worker, C. Ornosa leg., UCME; Baños de Tredós , slope, 10- VII-2014, 3 workers, F. Torres leg., UCME ; Estany Llong , slope, 9- VII-2014, 1 worker, C. Ornosa leg., UCME ; Grasslands between Estany Ratera and Estany Sant Maurici, 26- VII-2006, 1 worker, C. Ornosa leg., UCME ; Ribes de Freser , 13- VI-2013, 1 queen, B. Guzmán leg., UCME. Navarra: Abodi pass, 11 - VII-2009, 2 workers, C. Ornosa leg., UCME.