770 DIPTERA OF AUSTRALIA, 



Obs. — Two specimens were found at Mossman's Bay in a 

 cave facing the sea, only a single specimen at the Blue 

 Mountains. The tinted and beautifully iridescent wings make 

 this species easily recognised. It is evidently uncommon. 



299. DlCRANOMYIA ZONATA, Sp.n. 



(J. — Length of antennae ..... — inch ... — millimetres. 



Expanse of wings 0-220 x 0-055 ... 5-58 x 1-39 



Size of body 0-210x0-030 ... 5-33x0.76 



Antennae wanting. Head, including rostrum and palpi, deep 

 brown or black, the front hoary. Rostrum prominent, shorter 

 than head. Thorax light brown, the humeri and posterior half 

 of metanotum ochreous-yellow ; a deep brown stripe laterally from 

 collare to base of halteres, bordered beneath (including coxse) 

 with pale ochre-yellow ; the mesosternum deep brown. Halteres 

 deep brown, base of stem pale ochre-yellow. Abdomen deep 

 brown, all segments bordered posteriorly with yellow equally 

 distinctly abo\e and beneath; levigate, with yellowish hairs; 

 forceps deep brown. Legs, including trochanters, deep dusky 

 brown. Wings pellucid, faintly tinged with brownish-grey; 

 stigma elliptical, deep fuscous ; veins deep fuscous ; apex of wing 

 and cross-veins a little infuscated. Auxiliary vein extending a 

 short distance beyond origin of second longitudinal vein ; sub- 

 costal cross-vein near its tip ; first longitudinal vein ending in 

 second longitudinal, connected by an indistinct cross-vein to costa 

 scarcely beyond middle of stigma; preefurca moderately long, 

 almost rectangularly bent near its origin, with a stump of a vein 

 at the angle ; sub-marginal cell about \ longer than first posterior 

 cell ; discal cell closed, the great cross-vein close to its inner end. 



Hah. — Blue Mountains, N.S.W. (Skuse). One specimen. 



300. DlCRANOMYIA INCISURALIS, Sp.n. 



9. — Length of antennae 0-040 inch ... 1-01 millimetres. 



Expanse of wings 210 x 0-050 ... 5-33 x 1-27 



Sizeofbody 200x0-025 ... 5-08x0-62 



