@book{4596,
	author = {Spangles, Paul J.},
	title = {A revision of the neotropical aquatic beetle genus Stegoelmis (Coleoptera : Elmidae)},
	publisher = {Smithsonian Institution,},
	year = {1990},
	series = {Smithsonian contributions to zoology},
	address = {Washington :},
	note = {53-446}
}