82 American Midland Naturalist Monograph No. 1 



Ornithodoros TALAJE (Guerin-Meneville), 1849 

 Plate 8, Figs. 38 and 39 



1849. Argas lalaje Guerin-Meneville, original description, pp. 342-343, with figures. 

 1885. Argas lalaje Guerin-Meneville: Megnin, redescribed, pp. 460-463; 466, 470-472. 



with figures. 

 1896. Ornithodoros lalaje (Guerin-Meneville): Neumann, redescribed, pp. 34-37. 

 1901. Ornithodoros lalaje (Guerin-Meneville): Neumann, made O. rudis Karsch 1880, 



a synonym, p. 259. 



1907. Alectorobius lalaje (Guerin-Meneville) : Pocock, p. 189. New genus described, 

 O. lalaje type species. 



1908. Ornithodoros talaje (Guenn) : Banks, redescribed, p. 19, with figures. 



1908. Ornithodoros talaje (Guerin-Meneville): Nuttall, Warburton, Cooper and Rob- 

 inson, redescribed, pp. 59-61, with figures. 



1911. Ornithodoros lalaje talaje (Guer.) : Neumann, redescribed, pp. 125-126, with 

 figures. 



1930. Ornithodoros lalaje (Guerin-Meneville) : Hoffman, redescribed, pp. 161-163, 

 with figures. 



1936. Ornithodoros talaje (Guerin-Meneville): Brumpt, pp. 1197-1199. 



Sexes similar; nymphs and adults similar. 



ADULT 



Body. — Oval, a little pointed anteriorly, the curve of the posterior border 

 slightly flattened, sides nearly parallel. Margins more incurved opposite legs 

 I, II, and III than in most species. Size of female from 7.25 x 4.60 to 4.20 x 

 2.34. Size of male, 5.8 x 3.40 to 3.36 x 1.75. 



Mammillae. — Large, close but not crowded, conical, with radial ridges on 

 the sides reaching nearly to the tips; each mammillae witt one to three sub- 

 apical excavations or pits. Mammillae larger at the sides and largest on the 

 posterior border; small on the venter and indefinite on the supracoxal folds. 

 Hairs absent on dorsal and ventral surfaces and even on the hood. 



Discs. — Large, distinct, in large depressed areas which occupy much of the 

 median area of the dorsum. Discs on the venter present in lineal arrangement 

 in the preanal, transverse postanal, and the median postanal grooves and in 

 three depressions posterior to the transverse postanal groove. 



Legs. — Small, moderate in length, with the surface micromammillated 

 Hairs small. Tarsus I with a mild subapical dorsal protuberance; absent on 

 all other tarsi. Dorsal humps on the tarsi absent. Length of tarsus I, 0.72; 

 metatarsus, 0.54. Length of tarsus IV, 0.87; metatarsus, 645. 



Coxae. — Coxae I and II well separated; all other contiguous. Surfaces 

 micromammillated and with large excrescences. 



Hood. — Small, reduced to a tongue-shaped flap which is bent downward 

 and in contact with the cheeks with which it forms an enclosure covering the 

 mouth parts. In lateral profile the hood and the anterior extension of the 

 dorsal body wall form a distinct notch. 



