@article {12571,
	title = {Variations in the males of Ptomaphagus sericeus, Panz},
	journal = {EMmg},
	volume = {32},
	year = {1896},
	pages = {229-230.},
	author = {Champion, G. C.}
}
@article {11842,
	title = {The aedeagi of the british species of the genera Ptomaphagus Ill., Nemadus Th., Nargus Th., Bathyscia Sch. (Col. Cholevidae)},
	journal = {EMmg},
	volume = {81},
	year = {1945},
	pages = {121-125.},
	author = {Kevan, D. K.}
}
@article {11596,
	title = {The spermathecae of the British species of Ptomaphagus Illiger and Parabathyscia wollastoni (Jansen) (Col. Catopidae)},
	journal = {EMmg},
	volume = {99},
	year = {1963},
	pages = {216.},
	author = {Kevan, D. K.}
}
