DERMA TOBIA 



829 



The larva presents two quite different appearances. In the first 

 they are club-shaped, white in colour, with a thick anterior and a 



Fig. 422. — Dermatobia cyaniventris Macquart. (X3-) 



Fig. 423.— Young Larva of Fig. 424.— Older Larva of 



Dermatobia cyaniventris. Dermatobia cyaniventris 



(X3-) (After Blanchard.) Macquart. (X2^.) 



thin posterior end. The anterior portion is beset with booklets, 



and has two strong oral hooks. The posterior end carries the 

 stigmata. 



If left to themselves, the larvae will remain in the skin for some 



