Explanation of Plate VI. 



Fig. 1. Larva of Trktenotoma childreni, Gray. 



la. Ventral side. Ih. Under-side of head with maxillae 

 removed. Ic. Mandible. Id. Maxilla, le. Leg. 

 1/. Prothorax from side, showing spiracle. 



2. Larva of Melittomma insxdare, Fairni. 



2a. Head, front view. 2h. Labium and Maxilhp. 2c. Leg. 

 2d. Posterior concave face of 9th abdominal segment. 

 2e. 10th segment, forming pseudopod, and inclosing 

 anus. 2/. Mesothoracic spiracle. 



3. Larva of Dascillns cervinm, L. 



3a. Ventral side. S^. Mandibles. 3c. Maxilla. 3d. Labium. 

 3e. Leg. 3/. Prothoracic spiracle. 3j/. Spiracle of 

 3rd abdominal segment. 



