80 American Midland Naturalist Monograph No. 1 



Ornithodoros brodyi Matheson, 1935 

 Plate 7, Fig. 37 



1935. Ornithodoros brodyi Matheson, original description, pp. 351-352, with figures. 

 Sexes similar; nymphs and adults similar. 



ADULT 



Body. — Oval, sides nearly parallel, a little pointed anteriorly and rounded 

 behind; hood visible from above. Length, 6.0; width, 4.0 (Matheson). 



Mammillae. — Moderate in size and number and about equal in size in the 

 median and peripheral areas; by their shape and crowded arrangement re- 

 sembling the scales of reptiles. Individual mammillae varying in size, flattened, 

 smooth and shining; some with a few punctations in the flattened surface. A 

 few hairs present arising from the integument between the mammillae. Mam- 

 millae smaller or absent on the supracoxal folds and in the intercoxal area; 

 in other ventral areas, as large as on the dorsum. 



Discs. — Moderate in size, superficial. 



Legs. — Long and moderate in size, micromammillated and with numerous 

 fine hairs. Subapical dorsal protuberance moderate on tarsus I, absent on all 

 others; dorsal humps absent on all legs. Length of tarsus I, 1.02; metatarsus, 

 C.78. Length of tarsus IV, 1.2; metatarsus, 1.14. 



Coxae. — Small, with the surfaces granulated. Coxae I and II separated; all 

 others contiguous. 



Hood. — Well developed, a little depressed below the anterior extension of 

 the dorsal body wall. 



Cheeks. — Elongated, sides subparallel, reaching anteriorly beyond the line 

 of attachment for about one-third the length. 



Camerostome. — Well developed and together with the cheeks affording 

 some protection for the mouth parts. 



Capitulum. — Basis wider than long, with the surface irregular and micro- 

 mammillated. Palpi moderate in length; article 1 micromammillated and with 

 a knife-edge flange extending over the base of the hypostome, 2, 3, and 4 free, 

 smooth. 



Hypostome. — Length, 0.125. Denticles in a 2 / 2 pattern with the laterals 

 larger and greater in number than those in the median files; corona large with 

 numerous fine denticles, truncate or faintly notched. 



Folds. — Coxal and supracoxal folds distinct. 



Grooves. — Dorso-ventral groove absent. Preanal, transverse postanal, and 

 median postanal grooves present, the latter extending only from the anus to 

 the transverse postanal groove. 



Sexual opening. — Placed between coxae I. 



Eyes. — Absent. 



Anus. — In an elliptical pattern. 



Our redescriptions are from specimens kindly sent by Dr. Matheson. 

 Descriptions of nymph and larva are quoted from Matheson (1935). 



