G. H. F. Nuttall 
flat, long-oval. Cervical grooves start as deep pits and fade away 
without attaining posterior border. Pimctations few, medium, grouped 
laterally and anteriorly. Gapitidum resembling that of 1. 1 mm., 
porose areas small, deep, round, far apart. Palps: article 2 over twice 
as long as 3. Hypostome 3 [ 3, 9-10 teeth per external file, very broad 
distally, with long narrow unarmed basal portion. Venter-, vulva 
facing second intercoxal space (in half-gorged specimens it faces coxa 
II). Spiracle sub-triangular. Legs resemble those of but coxa I 
with external spur distinctly longer than the internal, coxae II-IV with 
blunt protuberance. Tarsi tapering slightly, 2-spurred. 
Nymph (Fig. 3) resembles the $. Body (unfed), L. lT-1’2 mm.*, 
when gorged, attaining L. 1'8 mm. Scutum broader than long (1. 0‘6, 
to. 0'7 mm.), emarginate, with angular sides, postero-lateral border 
sinuous, cervical grooves starting as elongate reniform pits and not 
Fig. 3. Amblyomma darlingi o, parts of dorsum and venter, spiracle and tarsus 4. 
(G.H.F.N. del.) 
attaining the posterior border. Eyes large, oval. Pimctations fairly 
numerous, relatively coarse. Capitulum: 0'4 mm., base sub-triangular, 
external borders rounded, cornua slight, dorsal surface slightly corrugated; 
the base, viewed ventrally, sub-rectangular, with rounded angles and 
slightly indented external contour. Palps with article 2 about twice as 
1 The various measurements of nymphs and larvae were made on eight specimens 
chosen from amongst many because of the apparent differences they exhibited in point of 
size. The differences were, however, very slight or nil. 
