These beetles are wingless and parasitize solitary bees during their larval stage[3] and are pollinators as adults.

In contrast, specimens from populations situated north of the Sistema Central mountain range, encompassing northern Portugal and the Spanish provinces of Ourense, León, and Zamora, typically display wider abdominal transverse bars than those in the southern and central populations.

In the majority of populations within the Extremadura region, these bars appear yellow to orange.

However, in areas extending northward to the Sistema Central mountain range, the coloration shifts to a deep red hue.

[5] This particular species inhabits the entire western region of the Iberian Peninsula, encompassing both Portugal and the westernmost parts of Spain, stretching from Ourense to Huelva.