@article {11675,
	title = {A new cave beetle of the genus Ptomaphagus (Catopidae) from DeKalb County, Tennessee},
	journal = {Journal of the Tennessee Academia of Sciences},
	volume = {33},
	year = {1958},
	pages = {170-171.},
	author = {Barr, TC}
}
@article {11622,
	title = {The Blind Beetles of Mammoth Cave, Kentucky},
	journal = {The american midland Naturalist},
	volume = {68},
	number = {2},
	year = {1962},
	pages = {278-284.},
	author = {Barr, TC}
}
@article {10238,
	title = {Studies on the cavernicole Ptomaphagus of the United States (Coleoptera, Catopidae)},
	journal = {Psyche},
	volume = {70},
	year = {1963},
	pages = {50-58},
	author = {Barr, TC}
}
