@article {215,
	title = {Mating between subspecies of the Sand Martin flea, Ceratophyllus styx Rothschild (Siphonaptera, Ceratophyllidae).},
	journal = {Entomologist{\textquoteright}s Monthly Magazine 104: 219-224.},
	year = {1968},
	pages = {241},
	author = {Humphries, D. A.}
}
