LIST OF DIPTERA. 863 



Dexia splendida. Musca splendida, Donovan, Gen. III. Ent. i. 

 pi. Hym. Dipt. f. * Wied. Auss. Zweif. ii. 285, 3. Rutilia 

 splendida, Guerin, Rev. Zool. 1843, 266, 5. Macq. Dipt. Exot. 

 Suppl. 1846, 178, 9. R. Australasia?, G. R. Gray, Griff. Cuv. 

 Anim. Kingd. Ins. ii. pi. 144, /. 1. 



a. Sydney, New South Wales. Presented by Dr. Sinclair. 



b. New Holland. Presented by the Linnean Society. 



c. Swan River. Presented by Sir J. Richardson. 



d. Swan River. From Mr. Lambert's collection. 



e. Swan River. 



Dexia Zabirna, n. s., mas. Viridis albo-micans, capite ferrugineo, 

 thorace maculis octo nigris ornato, scutello ferrugineo, abdominis 

 basi apiceque nigris, palpis fulvis, anteunis ferrugineis, pedibus 

 nigris, tibiis ferrugineis, alis limpidis. 



Body clothed with black hairs and bristles : head ferruginous, 

 adorned with white lustre round the eyes, golden-green beneath ; a 

 pitchy stripe fringed with bristles, widening from the eyelets to the 

 feelers ; epistoma very prominent ; sides of the face fringed with 

 bristles for two -thirds of the length from the base: eyes dark red; 

 fore part slightly convex, its facets larger than those elsewhere: 

 sucker black, clothed at the tip with tawny hairs ; palpi tawny, long 

 and very slender, beset with short black hairs : feelers ferruginous, 

 short, not more than half the length of the face ; second joint armed 

 with a bristle ; third joint linear, black from the middle to the tip, 

 which is rounded, about twice the length of the second joint; bristle 

 bare, nearly thrice the length of the third joint: chest green, 

 slightly tinged with white, adorned with eight deep black spots or 

 short stripes, which are disposed in two cross rows ; the two inner 

 pair are shorter than tbe two outer pair ; scutcheon ferruginous, 

 tinged with bluish green : abdomen obconical, bluish green, with 

 while reflections, not furrowed nor notched, a little broader and 

 shorter than the chest ; first segment and tip black ; hind border of 

 the third segment armed with spines ; a slender interrupted black 

 stripe along the back, and a broad black band on the hind border of 

 each segment : legs black, clothed with black hairs and bristles ; 

 shanks dark ferruginous; foot-cushions pitchy: wings colourless ; a 

 small pale brown spot near the base, which it joins on the fore bor- 

 der ; wing-ribs ferruginous ; veins black ; tip cross-vein forming a 

 slightly obtuse angle with the fourth longitudinal vein, almost im- 

 perceptibly curved inward near the base, straight from thence to the 

 tip, joining the border at some distance above the tip of the wing; 

 lower cross-vein with two distinct curves, the lower inward, the up- 



