58 ENTOMOLOGICAL SOCIETY 



branchial filaments ; it wriggles in a similar manner, however. 

 Probably its small size renders it possible to aerate the tissues 

 completely through the skin. 



Larva (Fig 3). Head rounded, flattened, free but somewhat retracted; 

 antennae slender, distinct; eyes of two contiguous black spots. Body 

 slender, filamentous, undulatory. A ventral pad on the prothorax bear 

 ing a tuft of recurved spines. Four anal finger-shaped processes and a 

 dorsal, terminal, double tuft of hairs. Whitish, translucent, alimentary 

 canal more opaque or blackish, according to food. 



Pupa (Fig. 4). Shaped as in the preceding species, the cases forming a 

 moderate prominence. Abdomen slender, tapering, ending in a ventral 

 lamellate projection, the last segment bearing a large tuft of colorless 

 hairs. Translucent, pale greenish, the thorax yellowish, eye dark; wing 

 and leg cases very transparent. A tuft of few, rather coarse, filaments on 

 the prothorax. 



Ceratopogon varicolor Coq. (Fig. 5.) 



The pupa only was observed. It was floating upright with the 

 air tubes penetrating the surface. The abdomen was straightly 

 extended so that the stiff, spiny thing did not suggest the appear 

 ance of a mosquito pupa at all. 



