/. hexagonus 177 



14. IXODES HEXAGONUS Leach, 1815. 



Figs. 171-177 (original). 



Synonymy: 1. Ixodes hexagonus Leach, 1815, xi, p. 397, on hedgehog. 



2. Ixodes autumnalis Leach, 1815, xi, p. 398, on pointer dog 1 . 



3. Ixodes erinacei Audouin, 1832, xxv, p. 415 (?) 1,2 . 



4. Ixodes reduvius Audouin, 1832, xxv, p. 422; nee Linnd {$) 1 . 



5. Ixodes crenulatus Koch, 1835-44, Heft 39 L 



6. Ixodes vulpis Pagenstecher, 1861, II, p. 40 1>2 . 



7. Ixodes erinaceus Murray, 1877, p. 190 '. 



8. Ixodes ricinus Megnin, 1880, p. 129 '. 



9. Ixodes sexpunctatus Koch, 1847, p. 22 (nymphs found in Germany), types 



examined by Neumann, 1901, p. 283. 



10. Ixodes cremdatus Koch, in Berlese, 1889, fasc. 55, PI. IV, ? dorsum and 



venter. 



11. Euixodes hexagonus (Leach) in Bonnet, 1908, p. 255. (I. canisuga Johnston, 



1849 ; I. cookei Packard, 1869 ; /. cruciarius Fitch, 1872, are listed by 

 Blanchard, 1909, p. 86, as synonyms ; see our List of condemned species. 

 We recognize canisuga.) 



Iconography : Audouin, 1832, xxv, PI. XIV, Figs. 2, 4.— Koch, 1835-44, Heft xxxix, 

 Figs. 5, 6 ( $ /. sexpunctatus) ; Figs. 8, 9 ( (J § /. crenulatus). — Pagenstecher, 

 1861, ii, PL I, Figs. 12, 13.— Berlese, 1889, fasc. 55, No. 4 (I. crenulatus 

 v. Synon.) ; 1892, fasc. 61, No. 10 ; $ dorsum, venter, capitulum and scutum, 

 spiracle and tarsus 4.— Canestrini, 1890, iv, PL XLIII, Fig. 2 : $ tarsus 4 

 and foot 4, poor. — Railliet, 1895, Fig. 484: $> (gorged), dorsum and venter; 

 Fig. 478, capitulum (after Delafond) poor (reproduced by Ward, 1900, Fig. 256). 

 — Neumann,. 1893, in Railliet, 2nd edit., fasc. 1, Fig. 485 (tarsus 4), same 

 figure reproduced by Ward, 1900, Fig. 257, and Salmon and Stiles, 1901, 

 Fig. 229. — Neumann, 1899, Fig. 10 (<£ venter) not reproduced, but replaced 

 by our original figure. — Salmon and Stiles, 1901, Fig. 229, reproduce figures by 

 Neumann, 1893 {v. supra) and 1899 ; also by Berlese (v. supra). — Wheler, 1899, 

 various stages figured, reproductions of photographs of balsam-mounted speci- 

 mens and details thereof ; much retouched, and of little value ( ? , o and 

 larva). — Mohler, 1905, PL II, Figs. 4, 4a, 4 6 (sketchy, coloured). — Wheler, 

 1906, PL VIII, Fig. 22, $, rough sketch after Neumann, 1899, Fig. 10; 

 PL VIII, Fig. 20: $ dorsum, good photograph of opaque object (reproduced). — 

 Banks, 1908, PL III, Figs. 11, 13 (? coxae, capitulum and scutum), very 

 inaccurate. — Bonnet, 1908, Figs. 14, 17-20 original, but bad. — Blanchard, 1909, 

 Figs. 91-93 (from Neumann and Bonnet). 



Literature : Some of the authors cited below doubtless refer to /. canisuga, but 

 their descriptions are too vague to be certain. In most cases /. hexagonus is 

 undoubtedly described, and this is rendered certain by reference to the Icono- 



1 Also included in Synonymy by Neumann, 1899, p. 129. 



2 Also included in Synonymy by Canestrini, 1890, p. 500. 



