PLATE XIV. 



Fig. 48. — Cross section parallel with the beak and maxillary sclerite. 

 e, compound eye; o, optic nerve; h, ring of pharynx; x, maxillary seta; 

 a, muscle holding the seta to the cranium; r, retractor; p, protractor 

 muscles; d, mandibular seta; t, retractor; n, protractor; c, pumping 

 muscles; w, muscles which operate the pharynx near the epipharynx. 



Fig. 49. — Cross section near the back of the head parallel with the 

 cephalic face, b, lower brain; s, upper brain; h, oesophagus; ni, muscle 

 which supports the oesophagus; x, maxillary seta; o, optic nerve. 



Fig. 51. — Ventral aspect of the reproductory organs of the male. 

 a, last abdominal segment; s, subgenital plate; r, claspers; x, z, elaspers; 

 k, copulatory organ; y, anal plates. 



Fig. 52.- — Lateral aspect of the tip of the abdomen of the male, j, 

 supra-anal plate; p, cercus; r, claspers; x, z, claspers; y, anal plate, bear- 

 ing the copulatory organ on its ventral side. 



