5. Coxae without overlapping, pointed spurs and with few hairs all shorter than coxal length. Palpal outline deeply concave laterally and with much reduced basal angle dorsally and ventrally; segment 3 ventrally with wide, bluntly rounded, short retrograde spur. (Rare parasite of hyraxes)..
Coxae with a short, pointed spur on at least two pairs. Palpal outline laterally straight or very slightly concave (deeply concave only in ex- ceptional, small specimens), and usually with large pointed basal angle or spur dorsally and ventral ly; segment 3 ventrally with narrow, pointed, fairly long retrograde spur. (Commonly on carnivores, rare on other animals)....
6. Scutum narrowly elongate (approximately twice as long as wide); punctations numerous, small, usually discrete; length from 2.3 mm. to 3.8 mm., width from 1.2 mm. to 1.9 mm. Basis capi tuli laterally usually diverging only slightly, cornua strong, elongate. Palpal lateral margins straight or slightly concave. Coxae each with a distinct, overlapping spur. Tarsi II to IV elongate, gradually tapering. (Common on canines; less common on other carnivores)..
..H. BEQUAERTI Figures 132 and 133
.H. LEACHII LEACHII Figures 144, 145, and 148
Scutum wider (approximately 1.6 times as long as wide); punctations few to moderate, medium to large, shallow, nondiscrete; size smaller, length from 1.3 mm. to 2.2 mm., width from 0.8 mm. to 1.2 mm. Basis capituli laterally widely diverging, cornua usually short and wide. Palpal lat eral margins usually concave. Coxae with a small but definite spur. Tarsi usually short, may be more or less humped and abruptly tapering. (Com mon on small carnivores; rare on antelopes)....
H. LEACHII MUHSAMI
Figures 150 and 151
1. Palpal segment 3 with basal margin strongly angled or spurred dorsally. Scutal width and length approximately equal. (Equatoria and Bahr El Ghazal; uncommon)
Palpal segment 3 with basal margin dorsally forming a straight line with no spur or angle....
2. Palpal segment 3 dorsally with basal margin sharply angled. Basis capi tuli with strong cornua. Scutal length and width equal or very slight ly longer than wide. Coxa I with inner basal angle produced to a small spur..
Palpal segment 3 dorsally with a retrograde spur. Basis capituli with small cornua. Scutum wider than long. Coxa I with small spur overlapping outer basal margin; no inner basal spur...
..H. ACICULIFER Figures 130 and 131
..H. PARMATA Figures 156 and 157
3. Palpal basal margin straight dorsally, without angle or spur. Basis capituli almost straight laterally, cornua almost obsolete. Scutal length and width approx imately equal. (Avian parasite).
Palpal basal margin angled or spurred dorsally. Basis capituli diverging laterally, cornua moderate to strong. (Mammal parasites)...
4. Palpi ventrally with a comparatively long, narrow spur basally, margin dorsally sharply pointed sublaterally; segment 3 ventrally with narrow elon gate, pointed spur. Coxae each with a strong spur and a few, short hairs; trochanter I ventrally with a strong spurlike ridge (that does not overlap trochantal margin); tarsi abruptly tapering, short, stout, somewhat humped, claw and tarsal length approximately equal. Scutum only slightly longer than wide, broadly rounded posteriorly; punctations few, shallow, mostly ante- rior. (Ground squirrel parasite)..
Combinations of characters differ as below. (Not normally ground squirrel parasites)....
H. HOODI HOODI Figures 138 and 139
...H. HOUY I Figures 142 and 143
5. Coxae without overlapping spurs. Palpi without basal spur dorsally or ventrally; basal margin acutely angled sublaterally; segment 3 ventrally with very short, broad spur. Basis capituli with small cornua. Scutal length and width approximately equal but outline abruptly converging posteriorly; punctations scattered, shallow, moderate numbers of varying size. Tarsi tapering distally. (Hyrax parasite; rare).....
Coxae with an overlapping spur on at least two pairs. Palpi usually with a definite basal spur dorsally or ventrally or both; segment 3 ventrally with an elongate, pointed, narrow ret- rograde spur; lateral outline straight or slightly curved; less commonly con cave. Basis capituli with strong cornua. (Common carnivore parasites; seldom on other animals)..........
6. Scutum elongate, 1.25 longer than wide, gradually narrowing posteriorly; punc- tations comparatively small, numerous, discrete. Palpal spurs usually all large and definite, lateral margins straight or slightly curved. Tarsi elongate and tapering. (Commonly from canines).....
..H. BEQUAERTI Figures 134 and 135
.....H. LEACHII LEACHII Figures 146, 147, and 149
Scutum shorter, length and width approx- imately equal, broadly rounded posterior- ly; punctations comparatively moderate in size and numbers, shallow. Palpal basal spurs frequently reduced, lateral margins more or less concave. Tarsi short, usual- ly abruptly tapered, sometimes humped. (Usually from smaller carnivores, sometimes on larger carnivores and ruminants; not common on canines)..
..H. LEACHII MUHSAMI Figures 152 and 153
Figures 128 and 129, &, dorsal and ventral views Figures 130 and 131, Q, dorsal and ventral views
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