0. moubata 



51 



bears 2 J 2 rows of teeth, with two prominent hairs on its base as in the 

 larva. They are usually ready to feed 3 — 4 days after ecdysis 1 and may 

 double in size after feeding. 



Fig. 74. Fig. 75. 



Fig. 74. Nymph, 1st stage, (. l - 3 mm., unfed, dead and shrivelled. Ventral aspect. 



From specimen given by Mr Newstead. Original, N. 

 Fig. 75. 0. moubata. Nymph, capitulum, x 200. Original, N. 



Fig. 76. Fig. 77. Fig. 78. Fig. 79. 



Figs. 76-79. 0. moubata. After Newstead, 1905, pi. I, figs. 1-4, showing respectively 

 contour of egg on first day, x circa 40. — Egg on about 10th day with cuticle broken 

 away showing larva protruding in profile, x circa 40. — Larva removed from the egg, 

 ventral aspect, x circa 40 (anus, omitted in the original figure, has been added, 

 G. H. F. N.). — Tarsus of larva, x 250, seen between the foregoing figures. 



Larva (Figs. 77-80). The larva can be extracted from the egg- 

 shell as was first observed by Dutton and Todd (1905 b, p. 126), "it 

 moves its legs but cannot crawl." It has been fully described by 

 Newstead (1905 b, p. 21), whose figures are here reproduced. It is very 



1 The nymphs were first recorded by Livingstone (1857, p. 382) and described as " the 

 size of a pin's head." 



4—2 



