Citation	Auteur	Année	Page	Romains	Figure	Patrie	Catégorie
Asemum asperum	LeConte	1854	18			Prairie Paso, Oregon
Asemum asperum	LeConte	1857	23, 60			Or.
Asemum asperum	LeConte	1862	42
Asemum asperum	LeConte	1869	371				Distribution
Asemum asperum	Gemminger & Harold	1872	2787			Oregon	Catalogue
Nothorhina aspera	LeConte	1873	169
Nothorhina aspera	LeConte	1873	294			Oregon and Vancouver
Nothorhina aspera	LeConte & Horn	1883	279			Oregon and Vancouver
Notorhina aspera	Leng	1884	63
Notorhina aspera	Leng	1886	sans pagination		pl. 3, fig. 24
Notorhina aspera	Smith	1888	91
Nothorhina aspera	Harrington	1899	108				Distribution
Nothorhina aspera	Knaus	1903	176				Distribution
Nothorhina aspera	Snow	1906	179				Distribution
Nothorhina aspera	Snow	1906	170				Distribution
Nothorhina aspera	Fall & Cockerell	1907	191				Distribution
Nothorhina aspera impressa	Casey	1912	264			Colorado
Nothorhina aspera rectipennis	Casey	1912	264			New Mexico
Nothorhina aspera	Casey	1912	263			Oregon
Asemum asperum	Aurivillius	1912	15			Oregon	Catalogue
Nothorina aspera	Garnett	1918	173				Distribution, misspelling
Nothorhina aspera	Craighead	1923	33		pl. 6, fig. 10		Larve
Criocephalus uteanus	Casey	1924	231			Utah
Nothorhina aspera	Hardy & Preece	1927	61			Vancouver Island, British Columbia	Biologie
Nothorhina aspera	Beaulne	1932	198				Plante nourricière
Nothorhina aspera	Mank	1934	79			Montana	Distribution
Megasemum aspera	DeLeon	1934	57				Plante nourricière
Megasemum aspera	Doane & al.	1936	167			from British Columbia through the Rocky Mountains and throughout the Cascades and Sierra Nevada Mountains	Distribution
Megasemum asperum	Van Dyke	1937	112
Megasemum asperum	Hardy	1942	10				Biologie
Megasemum asperum	Keen	1952	196			Western States	Plante nourricière
Megasemum asperum	Linsley	1957	12			Colorado	synonymie
Megasemum asperum	Linsley, Knull & Statham	1961	9				Distribution
Megasemum asperum	Linsley	1962	77		fig. 28 (carte)	Coniferous belt of western North America to southern montane Arizona	Faune
Megasemum asperum	Ross	1968	11, 12				Biologie
Megasemum asperum	Hatch	1971	96
Megasemum asperum	Furniss & Carolin	1977	293			from British Columbia to California, Montana, Colorado and New Mexico	Plante nourricière
Megasemum asperum	Chemsak, Linsley & Noguera	1992	25			oNAmer, México	Catalogue
Megasemum asperum	Monné	1994	21			Coniferous belt of western North America to southern montane Arizona and northern México	Catalogue
Megasemum asperum	Monné & Giesbert	1994	23			w NAmer, nw Mexico (SO)	Catalogue
Megasemum asperum	Noguera & Chemsak	1996	396			Mexico	Distribution
Megasemum asperum	Chemsak	1996	29		pl. II, fig. 4 (femelle)	Coniferous belt of western North America to southern New Mexico	Faune
Megasemum asperum	Linsley & Chemsak	1997	396				Plante nourricière
Megasemum asperum	Heffern	1998	7			AZ, CA, CO, ID, MT, NM, OR, UT, WA, WY, AB, BC, NT, SK, Mexico	Distribution
Megasemum asperum	Monné	2002	35			Coniferous belt of western North America to southern montane Arizona and northern México	Plante nourricière
Megasemum asperum	O'Neill, Fultz & Ivie	2008	33			Tenderfoot Creek Experimental Forest in the Little Belt Mountains of central Montana	Distribution
Criocephalus uteanus	Lingafelter & al.	2014	339		fig. 177 q (holotype)	USA: Utah, Eureka	Holotype
Nothorhina aspera rectipennis	Lingafelter & al.	2014	20		fig. 20 q (holotype)	USA: New Mexico, Cloudcroft	Holotype
Nothorhina aspera impressa	Lingafelter & al.	2014	20, 368		fig. 20 o (lectotype)	USA: Colorado, Boulder Co.	Lectotype
Megasemum asperum	Rice, MacRae & Merickel	2017	669		table 1	Idaho	Distribution

Megasemum asperum compte 4 types :