PUPAE OF TSETSE-FLIES. 



Fig. 4. 



'iipa of Glossina pallidipes, Austen, dorsal aspect (x 12) : a, posterior extieiiiity, 

 showing pit and (st) right Jarval stigma (x 24) : b, anterior extremity, sliowin" longi- 

 tudinal seam, which opens to permit the escape of the fly (x 8). " 







Fig. 5. 



Pupae of six species of Tsetse-flies, dorsal aspect, natural size. — A, G. brevipalpis, Newst. ; 

 B, G.fuxca, Wallc. (cephalic (lower) extremity missing); C, G. morsitans, Westw. ; 

 D, G. pallidipes, Austen ; E, G. tachinoides, Westw. ; F, G. palpalis, Rob.-Desv. 

 (From photographs of actual specimens.) 



