Key to species:

1	Legs yellow, with exterior tibia ridges black, apex of scutellum yellow	2
	Legs dark brown, apex of scutellum concolorous	caniliculatum (Le Peletier & Serville)
2	Pronotum including processi more than 2.1 times larger than body	patibulum Vollenhoven
	Pronotum including processi less than 1.7 times larger than body	maculigerum Stål

note: this provisionnal key is based on the comments of Vollenhoven, on the specimens I atttributed to canaliculatum and patibulum after examination, and on the picture of Stål type on the site of NHRS.