8 



Families and Genera of 



outer ones, the i'ulvilli, alone are present. The tarsus, composed 

 of five joints, the proximal one of which is called the META-tarsus, 

 the TiniA, the femih, and the coxa, attaching the leg to the thorax, 

 will be readily understood. 



A few words only, as regards the collection and preservation of 

 flies. Moisture of any kind spoils all specimens ; for that reason 

 they should always be pinned, and never preserved in fluids. Fur- 

 ther, the collecting bottle should be carefully lined with blotting 

 paper to absorb the moisture exhaled. Many flies are injured by 

 rubbing or liandling. Specimens should always be pinned, never 

 glued to cards. 



Classification of the Diptera. — Professor Brauer has recently 

 published* a classificatory system of Diptera, based upon the im- 

 mature and mature stages, which, as the most recent exposition bj' 

 one recognized as an authority in the classification of insects in gen- 

 eral, is worthy of acceptance, at least in greater part. It will be 

 difficult to supplant some of the names already in use, such as the 

 Muse aria calyptrats, etc., nor is such desirable ; but names, 

 here as elsewhere, are wholly of secondary' importance — the facts 

 or views to which such give expression are all that we at present 

 care for. His system is as follows : 



Sub-order ORTHORR KAPHA. 

 [ Tribe Eucephala. M.ycetophilida% Bibionidae, Chiro- 

 nomidfe, Culicidje, Blepharocerida?, Simulidae, 

 Psychodidaj, Ptychopterida?, Rhyphidse. 

 Tribe DLiooxBrRA. CecidomyidiP. 



Limnobida?, Tipulidas. 

 LonchopteridfP. 

 f Notacantha- Stratiom.,Xyloph. 

 J Tanystoma. Tabanida^, _ Acan- 

 1 thomeridffi, Leptidfe. 



( Bombylimorpha Acroc, Nemistr. 



iProcephala, Mydaidaj, Asilidfe, 

 Bombylida?. 

 Polytoma. Therevida;, Scenop. 

 Empidte, Dolichopodidse. 



Ne M A- 

 TO C E R A. 



Tribe Polynei ra. 

 Tribe Acroptera. 



B R a C H- 

 YCE R A. 



HOMOO- 



dactyla. 



Platy- 

 genya. 



[ Hetero- 

 dactyla 

 Tribe Orthogenya. 



Sub-order CYCLORRHAPHA. 



J. „ . ( Trd)e Syrphid.e. 



ASCHIZ A < rr. 1 TT 



Iribe Hypocera. 



SC H IZO- 

 PHORA. 



Tribe Eumyid.e. 

 Tribe Pupipara. 



Syrphida^, Pipunculidai. 



PlioridiP, Platypezidaj. 

 j Schizometopa. Muscidw calyptrata^- 

 I Holometopa, Muscid^ acalyptratse- 

 Hippoboscidae, Nycteribidae. 



♦Denkschr. d. k. Akad. d. Wissensch. XLVII. 11, 1883. 



