Clytochrysus obscurus Lepeletier de Saint Fargeau and Brullé, 1835
Crabro chrysostomus (Lepeletier de Saint Fargeau and Brullé, 1835)
Crabro comptus (Lepeletier de Saint Fargeau and Brullé, 1835)
Crabro denticulatus Lepeletier de Saint Fargeau and Brullé, 1835
Crabro effossus Shuckard, 1837
Crabro gracilissimus F. Smith, 1851
Crabro interstinctus F. Smith, 1856
Crabro lapidarius (F. Smith, 1856)
Crabro obscurus (F. Smith, 1856)
Crabro papagorum Packard, 1866
Crabro sinuatus (Packard, 1866)
Crabro xylurgus Packard, 1866
Ectemnius chrysostomus Packard, 1866
Solenius obscurus Viereck, 1908
Ectemnius lapidarius is a species of square-headed wasp in the family Crabronidae.[1][2][3] It is found in Africa, Europe and Northern Asia (excluding China), North America, and Southern Asia.[2]