Szekessy Vilmos (szerk.): A Magyar Természettudományi Múzeum évkönyve 55. (Budapest 1963)
Smit, F. G. A. M.: The zoological results of Gy. Topál's collectings in South Argentina 4. Siphonaptera
the zoological results of gy. total's collectings : siphonaptera 431 Family Ceratophyllidae Ceratophyllus sp. From Colaptes pitius ccichinnans: 2 <?, 22. IX. 400 m. A most interesting record, as no species of the Holarctic genus Ceratophyllus was known to have penetrated the tropics into the southern hemisphere (Ceratophyllus (jallinae [SCHRANK ] occurs in New Zea^nd. but it was introduced there by man with its European bird-hosts). One might argue that bird-fleas are apt to be widely dispersed by hosts with a long flight range, but it should be noted that e. g. house martins (Delichon urbica) — whose nests are heavily infested with several species of fleas during their breeding season in the northern hemisphere — have never been found infested with fleas in Africa during or after their migration. Colaptes pilius cachinnans, the host of the two specimens recorded above, is a form of the Chilian flicker with a rather restricted range: through the wooded eastern slopes of the Andes from Neuquen Territory to Santa Cruz Territory. The Chilian flicker is not necessarily the only host for this flea and it is hoped that more birds and their nests will be examined in the Andes so that more will be learned about the occurence of species of Ceratophyllus in that region. As females of the 55 known forms of Ceratophyllus can on the whole be distinguished with difficulty, it would be most unwise to describe the above specimens as a new species. The closest relatives appear to be C. niger C. Fox C. celsus sspp. and C. gilvus .J. & R. Dasypsyllus eteniopus (JORDAN & ROTHSCHILD, 1920) From Scelorchilus rubeeula rubecula: 1 <? 1 3. IX. 300 m. A bird-flea which was so far only known from Chile, viz. Temuco (38° 45' S. 72° 40' W.) ex Scytalopus magellanicus and the Isla Mocha (38° 22' S. 74° 05' W.) ex Pteroptochus rubecula (now known as Scelorchilus rubecula). Both species of passerine birds belong to the Family Pteroptochidae (tapaeulos or babblers). Nosopsyllus fasciatus (Bosc, 1800) From Akodon olivaceus brachiotis or Akodon longipilis suffusus: 1 3, 14—19. VI, 360 m. ; from Oryzomys longicaudatus philippii or Akodon olivaceus brachiotis or Akodon longipilis suffusus: 1 7—9. IV, 480 m. This cosmopolitan parasite of Rattus has been dispersed all over the world by means of ship-rats and was known in South America from Brazil (State of Sao Paulo, ex Rattus sp.). Chile (Santiago and Valparaiso, ex Rattus sp. and Marmoset elegáns) and Argentina (San Pedro near Bariloche, ex Rattus norvegicus, Rattus sp. and Oryzomys longicaudatus). The new records confirm that the contact between species of Rattus and those of wild rodents is close enough to permit an exchange of fleas to take place. Nosopsyllus londiniensis (ROTHSCHILD, 1903) From Oryzomys longicaudatus philippii: 1 ?, 12—19. VIII, 380 m. ; from Akodon olivaceus brachiotis or Akodon longipilis suffusus: 1 14 —19. VI, 360 m. The main hosts of this more or less cosmopolitan flea are the house-mouse (Mus musculus) and the black rat (Rattus rattus): especially on the latter host it is carried ail over the world by ships and is therefore found especially in
