Fig. 1. 
Fig. 1. 
Fig. 1. 
Fig. 1. 
Fig. 1. 
EXPLANATION OF THE PLATES. XIX 
TAB. X. 
Atax dentipalpis, 2 (pp. 10, 47): 1a, ventral surface; 1 6, palpus; 1c, mandible ; 
1 d, posterior margin of the abdomen, with the genital lamine (ventral view). 
. Nesea guatemalensis, ¢ (pp. 11, 47): 2a, part of the ventral surface, showing the 
disposition of the epimera and genital arev ; 20, palpus. 
TAB. XI. 
Nesea guatemalensis, $ (pp. 11, 47): la, part of the ventral surface, showing the 
disposition of the epimera and genital lamine; 14, genital lamine; 1c, palpus; 
1d, mandible; 1 e, section of the fourth joint of hind leg; 1/, tarsus of first leg. 
Nesea numulus (pp. 12, 47) : 2a, part of the ventral surface, showing the disposition 
of epimera and genital ares; 20, genital are; 2c, palpus. 
TAB, XII. 
Amblyomma mixtum, & (pp. 19, 49): la, the same, full of blood after suction ; 
16, genital aperture; 1c, anal aperture; 1d, top of mandible (pseudochela) ; 
le, stigmatic plate (peritrema); 1 f, radula of the arca maxillaris, viewed from 
beneath ; 1g, tarsus of hind leg; 1/, palpus; 17, tarsus of first leg. 
Amblyomma miztum, 8 (pp. 19, 49) : 2a, genital aperture; 24, anal aperture. 
Amblyomma foreli, (pp. 21, 50), tarsus of hind leg: 3a, top of mandible (pseudo- 
chela) ; 3, palpus of the same. (See also Tab. XIV. fig. 3.) 
TAB. XIIT. 
Ixodes boarum, 2? (pp. 18, 19): la, ventral surface; 1 6, dorsal surface of a young 
individual; lc, sucking-apparatus, showing the palpi, the radula of the arca 
maxillaris, and the mandibles (pseudochele); 1d, tarsus; le, stigmatic plate 
(peritrema). (See also Tab. XIV. fig. 4.) 
TAB. XIV. 
Amblyomma crassipunctatum, 3 (pp. 22, 50): la, anal aperture; 1 4, genital aper- 
ture; lc, stigmatic plate (peritrema) ; 1d, palpus; 1e, tarsus of first leg; 1, tarsus 
of hind leg; 1g, top of the mandible ; 1 #, radula of the arca maxillaris. 
. Amblyomma sabanere, 2 (pp. 23, 50): 2a, coxa of hind leg; 24, tarsus of hind 
leg; 2c, tarsus of first leg ; 2d, radula of the arca maxillaris; 2, stigmatic plate 
(peritrema) ; 2,f, palpus; 2g, top of the mandible; 2h, genital aperture; 27, anal 
aperture. 
. Amblyomma foreli, 2? (pp. 21, 50): 34, stigmatic plate (peritrema) ; 3 4, first tarsus ; 
3c, genital aperture; 3d, anal aperture. (See also Tab. XII. figg. 3-3 4.) 
Ixodes boarum, 2 (pp. 18, 49), anal aperture. (See Tab. XIII.) 
