OF NEW ZEALAND. 7 



Beachtcera — continued. 

 Family — Acalypteid^. 

 Analysis of the Sub-families. 

 A. Neuration of the wings complete. 



a. All the tibioe spurred. 



* Costa of wing bristly. Helomyince. 

 ** Costa smooth. 



Thorax rounded. Cordylurince. 

 Thorax flat. Phycodromince . 



b. No spurs on tibiae, but a bristle. 



No furrows for the antennae. Sciomyzince. 



c. Middle tibiae only spurred, 



* Posterior basal cells large. 



1. Front with bristles on the crown only. 



Tip of mediastinal vein obliterated by a fold in the wing. Psilinae. 

 Subcostal vein bare. Micropezince. 

 Cubital vein generally hairy. Ortalince. 



2. Front bristly. 



Veins of wing with bristles. Trypetince. 

 Palpi rudimentary. Sepsince. 

 ** Posterior basal cells small. 



Tibiae with a small bristle near the end. Sapromyzina. 

 Tibias without any bristle. Loncliceina. 



d. Middle and posterior tibiae spurred. 



Subcostal vein rather short. Seteroneiirince . 

 B. Neuration incomplete ; the mediastinal vein more or less rudimentary. 



a. Eyes on lateral projections. Diopsince. 



b. Eyes normal. 



* Thorax flat. BoiorincB. 

 ** Thorax rounded. 



1. Wings with several veins running into the costa. Phorina>. 



2. Wings normal. 



t Posterior tibiae with a short spur. Opomyzinfe. 

 ft Middle tibiae only spurred. 

 % Mouth without vibrissas 



Mouth large. Epliydinince . 

 Front without bristles. Oscinincp. 

 XX Mouth with vibrissa?. 



H Costa with bristles. Geomyzinre. 

 IF^ Costa without bristles. 



a. Claws and pulvilli very small. BrosopMlince. 

 y8 Claws and pulvilli normal. 



1. Posterior transverse vein near the border of the 



wing. Piophilince. 



2. Posterior transverse vein distant from the mai'gin 



of wing. AgromyzincE. 



3. Posterior transverse vein wanting. 



Posterior basal cells small. Phytomyzinee . 

 Posterior basal cells wanting. Asfeince, 



