I, niarxi 



173 



11. IXODES MARXI Banks, 1908. 



Fig. 167 (original). 



Lit. etc. : Banks, 1908, p. 32, PI. IX, Fig. 8 ( ? dorsum, G. Marx del.), PI. Ill, 

 Fig. 10 ($ capitulum, scutum and coxae; Banks del). 



Male : unknown. 



Female (Fig. 167): Scutum (1-2x0-9 mm.), longer than broad, 

 broadest rather in front of the middle (but not so anteriorly as in 

 /. canisuga); cervical grooves broad and very shallow, only visible for 

 about half the scutal length ; no lateral grooves ; scapulae rather 

 rugose ; scapular angles sharp ; emargination moderate ; a few fine, 

 shallow punctations on the median area of the scutum. Venter: vulva 

 between coxae III ; anal grooves very ogival in front, the sides long, 

 straight, slightly diverging, much nearer together than in /. canisuga ; 

 spiracle very small, circular. Capitulum : base subtriangular, concave 

 posteriorly, with slight cornua, porose areas ill-defined, subcircular, far 

 apart, and far from lateral border ; slight laterally projecting auriculae, 

 ventral surface of basis capituli flat ; palps of medium length, rather 

 narrow, article 2 rather longer than article 3, article 3 somewhat pointed 

 anteriorly ; hypostome short, narrow, lanceolate, 2 j 2, the outer teeth 

 much the stronger, about 6 teeth per file. Legs like those of /. canisuga, 

 but all the articles shorter; coxa I with slight internal spur, coxae 

 II-IV unarmed ; tarsi tapering abruptly, almost humped. 



^jrV 



Fig. 167. I. marxi s : capitulum and scutum, ventral aspect of capitulum with coxae, 

 tarsus 4, spiracle, genital and anal grooves. From specimen kindly loaned by Di- 

 li. 0. Howard, Government Entomologist, Washington, D.C., U.S.A. (Original, 

 G.H. F.N. del.) 



