@article {1719,
	title = {The natural history of dung beetles of the subfamily Scarabaeinae (Coleoptera: Scarabaeidae)},
	journal = {Folia Entomologica Mexicana},
	volume = {12-14},
	year = {1966},
	pages = {1-312},
	author = {Halffter, G and Matthews, E. G.}
}
@article {1995,
	title = {The taxonomy, geographic distribution and feeding habitas of the Canthonines of Puerto Rico (Coleoptera: Scarabaeidae)},
	journal = {Transactions of the American Entomological Society},
	volume = {91},
	year = {1965},
	note = {have  copy},
	pages = {431-465},
	keywords = {bird, canthon, dung beetle mammals, feeding, gastropod, guano, mammal, Neotropical, Puerto Rico, snails},
	author = {Matthews, E. G.}
}
@article {1996,
	title = {A taxanomic and zoogeographic survey of the Scarabaeinae of the Antilles (Coleoptera: Scarabaeidae)},
	journal = {Memoirs of the American Entomological Society},
	volume = {21},
	year = {1966},
	pages = {1-134},
	keywords = {Dung beetles},
	author = {Matthews, E. G.}
}
@article {1997,
	title = {La biogeograf{\'\i}a ecol{\'o}gia de los escarabajos del esti{\'e}rcol},
	journal = {Acta Polit{\'e}cnica Mexicana},
	volume = {16},
	number = {72},
	year = {1975},
	note = {requested 1/23},
	pages = {89-98},
	keywords = {dung beetle, food, mammal, mammals, resource},
	author = {Matthews, E. G.}
}
@article {1998,
	title = {The natural history of dung beetles of the subfamily Scarabaeinae (Coleoptera, Scarabaeidae)},
	journal = {Folia Entomologica Mexicana},
	volume = {12-14},
	year = {1966},
	note = {have copy- need to scan},
	pages = {1-312},
	keywords = {dung beetle, food, mammals, resources},
	author = {Matthews, E. G. and Halffter, Gonzalo}
}
