22 



American Midland Naturalist Monograph No. 1 



removed in part by the use of a needle point. The true character of the integu- 

 ment is better seen after the removal of the covering. 



Mammillae. — True mammillae as denned in Ormthodoros by authors 

 appear to be absent. Dorsal and ventral surfaces have the integument granu- 

 lated, and with numerous circular depressions, each depression with a central 

 tubercle. 



Discs. — The discs are easily overlooked but are present as small, slightly 



iu Vu \^ 





Fig. 6. Otobius megnini (Duges). A, Hypostome of first-stage nymph. B. Hypostome 

 of second-stage nymph. C, Hypostome of adult. D, Capitulum of nymph, ventral view. 

 E, Leg I of adult. F, Leg IV of adult. G, Leg I of nymph. H, Leg IV of nymph. 

 I, Capitulum of adult, ventral view. 



