862 LIST OF D1PTERA. 



Dexi a Pan thea, n. s., fem . Aureo-viridis cyaneo micans, capitis vertice 

 fulvo, thoracis vittis quatuor ceneis, scutello cyaneo, abdomine cu- 

 preo, vitta dorsali et segmentorum marginibus posticis nigris, pal- 

 pis fulvis, antennis nigris basi femigineis, pedibus nigris, alis 

 limpidis. 



Body clothed with black hairs and bristles : head thickly co- 

 vered with bright tawny down, bright bluish green behind and be- 

 neath, dark tawny on the crown, having a whitish tinge in front; a 

 ferruginous stripe widening from the eyelets to the feelers; epistoma 

 very prominent ; sides of the face fringed with bristles along nearly 

 half the length ; sucker black, clothed at the tip with tawny hairs; 

 palpi tawny, long, slender, beset with short black hairs : eyes pitchy ; 

 fore part nearly flat ; all the facets small : feelers ferruginous, short, 

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

 a bristle; third joint black, conical at the tip, ferruginous at the 

 base, less than twice the length of the second ; bristle black, downy, 

 about thrice the length of the third joint: chest golden-green, 

 tinged with blue, adorned with four bronze stripes ; scutcheon 

 bright blue ; breast bluish green, clothed with tawny hairs : abdo- 

 men bright reddish copper-colour, which is mingled with green at 

 the base and on each side ; a black stripe along the back and a 

 black band on the hind border of each segment ; no furrow nor 

 notch at the tip ; segments on the underside slightly retracted to- 

 wards the base : legs black, clothed with black hairs and bristles ; 

 foot-cushions pitchy : wings colourless, with a brown spot near the 

 base, which is tawny on the fore border; wing-ribs ferruginous; 

 veins black, ferruginous at the base ; tip cross- vein forming an ob- 

 tuse angle with the fourth longitudinal vein, almost imperceptibly 

 curved inward till near the tip, where it has a slight outward inclina- 

 tion joining the border ; lower cross-vein with a slight inward curve 

 near the base, straight from thence for some space, and afterwards 

 slightly waving to the tip ; scales gray, with tawny borders. 

 Length of the body 7 lines ; of the wings 18 lines. 



a. West Australia. From Mr. Clifton's collection. 



Dexia formosa. Kulilia formosa, Desv. Essai Myod. 320, 2. E. 



splendida? Macq. Dipt. Exot. ii. 81, I, pi. 9, /. 5, 6. Guerin, 



Rev. Zool. 1843, 266, 3. 

 a. New Holland. 



Dexia regalis. Eutilia regalis, Guerin, Rev. Zool. 1843, 265, 

 1. Voy. Coq. Zool. ii. pi. 21, /. 1. Musca regalis, Guerin, 

 Voy. Coq. Zool. ii. 21s* div. 296. 



a. New Holland. Presented by the Entomological Club. 



