BRAUER'S CLASSIFICATION 

 OF DIPTERA 



(* An asterisk denotes that the family is illustrated in this book.) 



Sub-order i. ORTHORRHAPHA 



Larva with a distinct head. Pupa obtected. 



The adult escapes from the pupal skin by a straight dorsal slit which 

 may be transverse but is more usually longitudinal Imago lacks the 

 frontal lunule and ptilinum. 



Sub-order 2. CYCLORRHAPHA 



Larva without any distinct head. The Pupa coarctate. 



The adult escapes from the puparium through a more or less round 

 opening at the anterior end. Frontal lunule present; ptilinum usually 

 present. 



Sub-order i. ORTHORRHAPHA 



Section L NEMATOCERA 



Antennae long and thread-like, composed of many similar or very 

 similar segments. The maxillary palpi usually elongate and flexible 

 of from 2 to 5 segments. Second long vein often forked. 



Section U. BRACHYCERA 



Antennae usually of three segments, the third usually elongated 

 and sometimes composed of a number of indistinct sub-segments and 

 often bearing a style or arista. Maxillary palpi of i to 2 segments, 

 not flexible. Second long vein not forked. Squamae completely 

 concealing the halteres. 



