Bombus mesomelas
Bombus mesomelas are species with medium size. Elongated head.
Females : 17-19 mm
Males: 14-16 mm
Pale yellow coloration, with a interalar black band. Black pubescence intermixed. T2 orange or pale yellow. T3 can be as T2 or paler. Males are more pale than females.
It has not been evaluated.
No threats described.
Females: elongated head, malar space longer than distal width. Malar space without dots.Rounded flattened labral tuber. Wide shallow labral groove.The labral lamina 's edge is curved. Clypeus longer than the distal width, almost rectangular, convex and prominent. Fine and sparse dotted. In the upper third, the points are in furrow and in lines. Well defined, little and narrow apical impression, with pits arranged in parallel and transverse rows. Discreet and slightly sculpted front, with areas without dotted well defined. A5 longer than A4. A3 just like A4+5. On the hind legs, the femur's dorsal region has a hairless space. Bright, lightly crosslinked and hairless tibia. Wide basitarsus.T6 with wide dotted, looking grainy, with the posterior edge up.
Genitalia: elongated, wide sting case with the external projections and simple internal projections, with a little tooth in the internal region.
Males: long head, malar space longer than distal width . Beardless, mat jaws with a well defined ventral tooth and a litlle dorsal tooth. Narrow and long midlle basitarsus, with almost parallel sides. On the hind legs, convex tibia with hair on the surface. Wide basitarsus with acute posterodistal angle. E6 thickened edge. Wide and subtriangular E7. Elongated E8 with a recess in the end.
Genitalia: wide, long and divergent sagittae, with a tooth int he inferior middle region, finished in a dilated region, which has a little spine. Long and narrow shock, widened at the base. Concave, rounded escuama. Elongated volsesas, with hair at the base, Bent at an angle and extended, upwards, into a small hook.
Bombus mesomelas are a mountainous species.
This specie is distributed throughout southern European high mountains (Alps, Apennines, Pyrenees, Tatras, Balkans, Carpathians). Caucasus, Turkey, Elburs. Also appears in the Cordillera Cantabrica, Sierra Cebollera and Sierra de los Ancares in the Iberian)
1200-2500 m.
Potential distribution map at the present time
Potential distribution map in 2050 with the same level of pollution emission and the climate changes consequence of these contamination levels
Map legend
Maps are made with GBIF data of this specie in Iberian Peninsula
Subterranean nest.
Flight period: June-september
They have been collected in Lamiaceae,,Asteraceae, Rosacea, Cariofilaceae, Fabaceae and Gencianaceae.
Biotopes: open and forested areas cleared of fir, oak and beech.