To my knowledge, I'm the only person who has photographed a living Tetraopes mandibularis (no common name). The males of this species are unique in having a prominent tubercle on the mandible (seen in this comparison with the female on the left and male on the right). Although its host plant--the broadleaf milkweed--is found throughout the southwestern U.S., this beetle is known only from a very small region of TX and OK.
As best as I can discern from searches of the primary literature, the open internet, and iNaturalist, this is the first photograph ever taken of a living Tilloclytus portoricensis longhorn beetle.
I photographed it on Wednesday in the Guanica dry forest in Puerto Rico, which is also the type locality for this poorly known species.