References
- Avise , J.C. 1974 . Systematic value of electrophoretic data . Systematic Zoology , 23 : 465 – 481 .
- Ayala , F.J. 1975 . Genetic differentiation during the speciation process . Evolutionary Biology , 8 : 1 – 78 .
- Bates , J.K. 1962 . Field studies on the behaviour of bird fleas 1. Behaviour of the adults of three species of bird fleas in the field . Parasitology , 52 : 113 – 132 .
- Ferguson , A. 1980 . Biochemical Systematics and Evolution , Glasgow and London : Blackie .
- George , R.S. 1974 . Provisional Atlas of the Insects of the British Isles. Part 4. Siphonaptera , Natural Environment Research Council .
- Greenwood , M.T. and Ward , R.D. 1980 . Genetic variation in fleas . Isozyme Bulletin , 13 : 90 – 90 .
- Humphries , D.A. 1968 . Mating between subspecies of the Sand Martin flea, Ceratophyllus styx Rothschild (Siphonaptera, Ceratophyllidae) . Entomologist's Monthly Magazine , 104 : 219 – 224 .
- Humphries , D.A. 1968 . Behavioural aspects of the ecology of the Sand Martin flea Ceratophyllus styx jordani (Siphonaptera) . Parasitology , 59 : 311 – 334 .
- Nei , M. 1972 . Genetic distance between populations . American Naturalist , 106 : 283 – 292 .
- Rothschild , N.C. 1900 . Notes on Pulex avium Taschenberg . Noviates zoologicae , 7 : 539 – 543 .
- Smit , F.G.A.M. 1955 . Two new subspecies of fleas (Siphonaptera) from the British Isles . Transactions of the Royal Entomological Society of London , 107 : 341 – 356 .
- Smit , F.G.A.M. 1957 . “ Siphonaptera ” . In Handbooks for the Identification of British Insects , Vol. 1 , 1 – 94 . London : Royal Entomological Society . 16
- Sneath , P.H.A. and Sokal , R.R. 1973 . Numerical Taxonomy , San Francisco : Freeman and Co. .
- Ulmanen , I. 1979 . Fleas (Siphonaptera) in Sand Martin (Riparia riparia) nests in Finland and northern Sweden . Notulae Entomologicae , 59 : 29 – 32 .