The Genera Boophilus Rhipicephalus and Haemaphysalis (Ixodidae ...

MALE
Length from tips of palpi to posterior, margin (not to tip of
Body.
process) from 1.75 to 2.00; greatest width, 1.05 to 1.20. Oval,
caudal
at about the middle. Scutum not covering entire body at sides;
widest
parts striate and without hairs.
exposed
Length from tips of palpi to tips of cornua, from 0..33 to
Capitulum.
width, 0.40 to 0.49. Basis about twice as long as wide. Cornua
0.40;
pointed, a little raised over the level of the posterior margin..&
bluntly
hairs present on sides and top of basis. Palpal article 1 not visible
few
above.
from
setae.
palpal
Essentially as in the female. Length, about 0.24.
Hypostome.
to the margins. Posterior margin plain, not crenate. Cervical
declivitous
mild, divergent posteriorly; posterior to them, at about the
grooves
absent in grooves and depressions. Surface throughout with very
areas,
Eyes small and often not easily seen.
granulations.
Terminating posteriorly with blunt, free points; surfaces convex;
Shields.
hairs present.
Shorter and heavier than in the female. Length ot tarsus I,
Legs.
metatarsus, 0.30. Length of tarsus IV, 0.:36; metatarsus, 0.50.
0.323
Coxa I with spurs very distinct, triangular, pointed; internal
Goxae.
wider than external; anterior process |ong, extending beyond the
spur
(visible from above). Coxa II with internal and external spurs
scapula
rounded, shorter than on I, internal spur wider. Coxa III with
distinctly
still shorter, rounded, external spur; internal spur as a
roundel
a
(similar to that on II). Coxa IV with spurs absent. Hairs few.
salience
NYMPH
Length well-engorged, 2.40 to 2.70; width, 1.60 to 1.80. Wide
Body.
front, narrow behind, mildly constricted at the spiracular plates; edges
in
the spiracular plates usually visible from above. (No unfed nymphs
of
available.)
Length from tips of palpi to posterior margin, 0.24;
Capitulum.
20
Genital aperture.
Between coxae.II.
ventral view, palpal article 1 with ]n retrograde projection on the
a
side (shape variable). Inner edges of article 2 and 3 with a few
inner
Mildly excaLcated at the sides near the spiracular plates.
Seutum.
long, situated far apart. Lateral and posterior areas increasingly
Scapulae
rounded depressions t:'osterior to these rounded depressions,
middle,
and median grooves present. Hairs numerous on elevated
posterolateral
fine
Genital aperture. Situated between coxae II.
greatest width, 0.30. Basis with posterior salient margin convex. Cornua