270 



Genus Ixodes 



than coxa IV, and much nearer to the coxa. Legs more massive, coxa 

 I with larger poster o- external spur prolonged in a point overlapping 

 coxa II, with sharp internal angle ; coxa II angular internally (round in 

 the type). Tarsi tapering less gradually. 



Described from (N. 647) 3 $ s, taken from a large opossum, Tabasco 

 de la Frontera, Mexico, in the month of May (ex Hon. N. C. Rothschild's 

 collection). 



50. IXODES COXAEFURCATUS Neumann, 189a. 



Fig. 271 (original). 



Lit. : Neumann, 1899, p. 127 (no figure). 



Male : Body elongate, narrow, sides parallel, 3"7 x 17 mm. Scutum 

 glabrous, marginal fold narrow at the sides and broad behind ; puncta- 

 tions large, distant ; cervical grooves short, superficial ; faint traces of 

 lateral grooves ; scapulae rounded. Venter : plates glabrous, with 

 punctations as on scutum ; sexual orifice facing the second intercoxal 

 space; pregenital plate triangular, longer than broad, with summit 

 rounded ; anal plate almost twice as long as broad, with sides arcuate ; 



Fig. 271. I. coxaefurcatus j : dorsum, parts of venter, spiracle and tarsus 4. Sketched 

 from the type in the Berlin Museum. (Original, G. H. F. N. del.) 



