LIST OF DIPTERA. 



SECOND SERIES. 



PART I. 



Class. DIPTERA. 



Os suctorium, proboscide, setis inclusis, tarsisque. Tarsi pen- 

 tameri. Alae binae ; halteres bini pone alas. 



Sub-class 1. PKOBOSCIDEA. 

 Antennae capitis fronte insertae. Pedes approximati. 

 Proboscidea, Latr. 



Order 1. BRACHYCERA. 



Palpi porrecti, aut proboscide incumbentes, quasi exarticulati. 

 Antenrae articulis post 3um connatis, vel extremis nimis attenuatis. 

 Alarum areola analis ferme clausa ; venae posteriores ramosae, vel 

 anastomosi connexae. 



Brachocera (Hexachaeta, Tetrachaeta et Dichaeta), Macq. Hist. Nat. 



Dipt.i. 183. Westw. 

 Brachycera (Polychaeta et Dichaeta), Zett. Dipt. Scand. i. 1, 3. 



B 



