158 Genus Ixodes 



We possess specimens (N. 626), </\ $, from Gariacus virginianus, 

 Craven County, N. Carolina, XI. 1897 (ex N. C. Rothschild coll.), and 

 (N. 718), ?, from Miami, Florida (ex N. Banks coll., presented by 

 the U. S. Dept. of Agriculture). The collection of C. G. Hewitt, 

 Ottawa, contains % specimens (determined by us), taken in Canada 

 from man, and found by M. Mahafty, VI. 1904, at Bracebridge, Ontario. 



Neumann, in describing /. affinis, remarks on its similarity to 

 /. ricinus. Banks gives it specific rank, and points out certain 

 respects in which it differs from /. ricinus, in some of which we are 

 unable quite to agree with him. We have very carefully examined 

 four % kindly given to us by the U. S. Dept. of Agriculture, 

 Washington, D.C. and other specimens taken in Craven County, 

 N. Carolina (Rothschild coll.). The form is certainly very near /. 

 ricinus, and if found in Europe would be attributed to that species 

 with little hesitation considering the variation revealed by the review 

 of a very large number of typical /. ricinus. It seems to us impossible 

 to accord it higher rank than that of a variety of /. ricinus. 



Ixodes ricinus var. ovatus (Neumann, 1899). 



Lit. etc.: Ixodes ovatus Neumann, 1899, p. 112, Figs. 2,3. It was subsequently 



found that the lot described contained typical ricinus. The figs, of the <J 



and $ hypostomes and digits as in ricinus. 

 Ixodes ovatus Neumann, 1904, p. 452, species maintained (description quoted 



below). 

 Ixodes ovatus Neumann, in Donitz, 1905, p. 132. Donitz considers the species 



probably but a variety of ricinus. 



Neumann (1904, p. 452) states that ovatus differs from ricinus in 

 the following points : 



Male : unknown. 



Female : Scutum about as long as broad, cervical grooves very 

 shallow and long, lateral grooves indicated by a slightly prominent ridge, 

 parallel to the borders; porose areas oval, slightly longer than broad, 

 converging anteriorly ; coxa I with a very short internal spine, II 

 unarmed, sharp on its posterior border, III and IV with a small 

 external tuberosity ; tarsi shorter than in /. ricinus. 



Described from two % found on a horse and a dog at Saga, Japan, 

 by Yamagnchi. The differences noted only appear to ns to be varietal. 



