dorsal closeup on a male european golden-tailed woodborer, lithurgus chrysurus on a yellow centaurea solstitialis

arthropod bee centaurea solstitialis europe flora france gard hymenoptera insect lithurgus chrysrurus chrysurus mediterranean woodboring megachilidae nature yellow star thistle starthistle animal biodiversity biology closeup daisy family entomology flower flowering goldentailed woodborer invertebrate knapweed macro outdoors pollinator single solitary wild wildflower wildlife wood borer dorsal natural vertical male european