/. gigas 203 



in front, widely divergent behind ; short hairs, mostly behind the coxae. 

 Spiracles large, subcircular, with macula eccentric (anterior). Gapitulum 

 long (2 mm., Nn.), with base slightly broader than long; dorsal ridge 

 subrectilinear (no cornua) and lateral borders parallel ; porose areas 

 oval, with long axis oblique, the interval nearly equal to their width. 

 (Digit ; see Fig. 195 (2).) Hypostome narrow, lanceolate, as long or 

 slightly longer than the palps; dentition 4 | 4, then 2|2 rows of 10-12 

 teeth, which are widely separated by a median ridge. Palps long ; 

 external border concave posteriorly, article 1 projecting outward like a 

 knot, article 2 twice as long as 3. Legs large, strong (pair 4 extend 

 one-half their length beyond the posterior border of the body in unfed % ), 

 and bearing short hairs. Coxa I bidentate, the internal spur thick and 

 overlapping coxa II, the external spur short ; a short external spur on 

 coxae II-IV. Tarsus 4 tapering gradually ; pad about one-half as 

 long as claws. 



Origin: Karsch's type came from Japan (1 $ , D. Hilgendorf coll.), 

 Neumann's /. laevis came from Sikkim, India (1 $, Harmand coll., 

 Paris Mus.). Neumann has since recorded 2 $s from Sikkim (Berlin 

 Mus.), and we have seen 2 ?s from Japan and S. Formosa (Brit. Mus.). 



24. IXODES GIGAS Warburton, 1910. 



Fig. 196. 



Lit. and Icon: Warburton, 1910, p. 397, Figs. 1 and 2 (reproduced). 



Male: L. 5, W. 3 mm. Body oval, broadest near the hind end, 

 marginal fold uniformly broad. Scutum chestnut coloured, darker on 

 the scapulae and sides, glossy and smooth except for a few small 

 punctations on the scapulae and between the cervical grooves ; the 

 latter parallel at first, then sharply diverging ; no lateral grooves. 

 Gapitulum moderate ; base rather long, pentagonal, without cornua. 

 Palps of medium length, article 2 rather prominent laterally and about 

 twice the length of article 3. Hypostome 2 ] 2, seven or eight teeth 

 per file. Venter: pregenital plate elongate, rather indented anteriorly ; 

 median plate much longer than broad, the sides slightly diverging; 

 anus rather near the posterior border; anal plate with sides curved 

 and slightly diverging ; genital oi'ifice facing the third intercoxal space. 

 Spiracles rather large, oval or slightly reniform. Legs long ; coxae I 



14—2 



