262 DIPTERA OP AUSTRALIA; 



INDICES OF ALAR AND TARSAL PROPORTIONS. 



253. Camptocladius terjugus, sp.n. (PL xii., fig. 16). 



9. — Lengtli of antenn3B 0*017 inch ... 0-42 millimetre. 



Expanse of wings 0-075 x 0-020 ... l-89x0'50 



Size of body 0-090x0-017 ... 2-27x0-42 



Antennae dark brown ; first joint of scapus pale brown or 

 yellow. Head brown or ochreous-brown, with a few hairs along 

 hinder margin of eyes. Clypeus and palpi brown, former some- 

 times with yellowish pubescence. Thorax yellow, often slightly 

 tinged with brown, with three very prominent dusky castaneous- 

 brown, sometimes almost black, stripes, confluent at posterior 

 margin ; intermediate stripe running whole length of thorax, 

 suddenly narrowed a little below middle; a sparse row of dark 

 brown hairs between stripes ; pleurae yellow, with a small, more 

 or less dark brown indeterminate spot under origin of wing; pectus 

 dusky brown"; scutellum umber-brown, fringed with long dark 



