/. brumieus 189 



Description based on 4 Js collected at Punta- Arenas, Straits of 

 Magellan, S. America, by Lebrun, from an undetermined bird (Paris 

 Museum). 



In the British Museum there are 2 % s, from Trupialis militaris, San 

 Sebastian Settlement, Tierra del Fuego (Crawshay coll., October, 1906). 

 The better specimen is mutilated, articles 2-4 of the palps being absent. 

 The sides of the scutum are more angular than in Neumaun's figure of 

 the type, and correspond more to our figure of /. brunneus (Fig. 182). 



18. IXODES BRUNNEUS Koch, 1844. 



Figs. 182, 183. 



Lit. etc. : Ixodes brunneus C. L. Koch, 1844, p. 232 ; 1847, p. 99, PI. XX, Fig. 74 



( $ from N. America). 

 Ixodes avisugus Berlese, 1890, fasc. lv, No. 5. Latin description. Figures of 



dorsum, venter, capitulum and scutum. 

 Ixodes frontalis (Panzer), in Neumann, 1899, p. 133, Fig. 11 (reproduced). 

 Ixodes aoisugus Berlese, in Oanestrini, 1890, p. 505. 

 not Ixodes bifurcatxis Neumann, 1899, p. 122, as stated by Neumann, 1901, p. 347, 



in relation to a $? specimen he subsequently named Dermacentor bifurcatus 



(Neumann, 1904, p. 453). 

 Ixodes brunneus Koch, in Neumann, 1904, p. 454, who gives description, sent 



to him by Dahl, of the type (1 $ )• 

 Ixodes kelloggi Nuttall and Warburton, 1907, p. 396, Figs. 6-8 (reproduced). 

 Ixodes brunneus Koch, in Banks, 1908, p. 26, PI. Ill, Fig. 9 ( $? capitulum and 



scutum ; figures inaccurate). 

 V Acarus frontalis Panzer, 1795, fasc. 59, Fig. 23. 

 ? Ixodes pari Leach, 1815, p. 399, found on Parus major. 

 1 1xodes pall ipes Koch, 1835-1844, Heft 39, Fig. 10, found on Sitta enropaea 



(Larva). 

 ? Ixodes sturni Pagenstecher, 1861, p. 40 (Larva). 



Note : The foregoing synonymy is doubtful with regard to the names 

 preceded by (?), but in these cases the ticks were found on birds, and 

 may well have been brunneus. In the absence of any accurate figures, it 

 is easy to understand the confusion which has arisen regarding this species. 

 The type, a single ? (Berlin Museum), has been mounted in balsam. 

 Professor W. Donitz, who has kindly compared the structures in the 

 type with specimens we sent him, agrees with us as to the identity of 

 kelloggi with brunneus. Banks (1908, p. 26), after seeing our figures 

 of kelloggi, expressed a similar opinion. We agree with Neumann in 

 degrading avisugus to a synonym ; our specimens agree with Neumann's 

 specimens of" 1 '. frontalis (Panzer)" Neumann, 1899. 



