PLATE XVI 83 



THE 8th STERNITE AND TERMINAL PORTION 



OF BRITISH BIRD FLEAS 



(X 75) 



a b c 



Ormacus rothschildi Ceratophylliis hirundinis OmithopsyUa laetitiae 



(from house-martin) Cfrom house-martin) (from Manx shearwater) 



d e g 



C. rusticus C. vagahunda Cfarreni C. styx 



(from house-martin) (from jackdaw) (from house-martin) (from sand-martin) 



FFC— G 



