306 
The Genus Ixodes 
aspect). Scutum oval, slightly flattened at the scapular margins, cervical 
grooves obsolete, glossy, coarse, and medium-sized punctations irregu¬ 
larly distributed, long fine hairs. Capitulum base pentagonal, as broad 
as long, dorsal ridge straight, forming obtuse angles with the postero¬ 
lateral margins which diverge forwardly, with a few fine punctations; 
palps with article 1 small, articles 2-3 of equal length, distinctly 
articulated, when taken together over twice as long as broad; ( Ventral . 
aspect) article 1 with ventral protruding flange (also present in ?); 
base with ventral ridge somewhat pointed, trenchant, and two more or 
less distinct rugose protrusions laterally; hypostome (of the I. ricinus 
type) with a single large basal tooth on each side and fine denticles 
distally in 4-5 transverse rows. Venter: Sexual orifice between 
coxae III; median plate broad, its postero-lateral angles far back, 
adanal plates short, anal grooves widely diverging behind (as in the $), 
all the plates, especially the epimeral, bear long hairs; spiracle ovoid, 
the blunt end directed forward. Legs : Coxa I with short internal spur 
continuous with the trenchant posterior border which runs on to an 
external ridge which ends abruptly giving it a spur-like look dorsally; 
coxae II-IV trenchant, coxa IY with a short broad-based external 
spur; legs hairy throughout; trochanters 1-3 with slight protuberance 
or small but distinct spurs; tarsi tapering gradually, the distal pseudo¬ 
article over twice as long as the basal; pads as long as the claws. 
Female: Our description of the ? in Ticks, Part n. p. 208, needs no 
modification excepting on the subject of variability observed in 10 $s 
which have since become available. The scutum of the type measures 
T1 x 1-1 mm., that of the 10 newly acquired $s as follows in mm.: 
1-04 x 1-05 
1-05 x 1-05 
1-07 x 1-04 
M0 x 1-04 
M3 x 1-05 
0-9 x 0-94 
0-97 x 0-98 
0-97 x 1-0 
0-97 x 1-0 
1-02 x 1-03 
Described from 3 lots (N. 2947-8-9) comprising 1 1 ¥ from the 
collector’s person, and 5 $ from a cow, taken in forests on the Ka-gur-pu 
Mountains (11,000 feet elevation), vi. 1913, and 1<J 4 ? from the 
collector’s person, taken at Dokerla (13,000 feet elevation), 1914; these 
localities are situated in the N.W. corner of Yunnan on the borders of 
China and Tibet; and (N. 3019a) 1 d, the largest, from the collector’s 
person, taken in the jungle, Hpimaw District, Upper Burma (elevation 
6000-8000 feet), 1914, together with Ixodes acutitarsus (Karsch, 1880) 
