864 LIST OF DIPTERA. 



per outward ; scales gray, with tawny borders. Length of the body 



6 lines; of the wings 14 lines. 



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



Dexia decora. Kutilia decora, Guerin, Rev. Zool. 1843, 216, 3. 

 Macq. Dipt. Exot. Suppl. 1846, 180, 13. 



a. New Holland. Presented by the Haslar Hospital. 



b. Adelaide. Presented by the Entomological Club. 



Dexia Chersipho, n. s., fern. Purpurea, capite tuteo, thorace cyaneo 

 vittato et maculato, abdomine niyro -purpurea, fasciis iribus 

 abbreviatis cyaneo -viridibus micante, palpis fulvis, antennis 

 ferrugineis, pedibus nigris, alls limpidis basi fulvis fusco ma- 

 culatis. 



Body clothed with black hairs and bristles: head bright orange- 

 colour, beneath golden-green, which colour passes into bluish-green 

 on one side, and into coppery-purple on the other ; crown dark 

 orange ; a ferruginous stripe widening from the eyelets to the feel- 

 ers ; epistoma very prominent ; sides of the face fringed with bris- 

 tles along half the length : eyes pitchy ; fore part flat, its facets a 

 little larger than those elsewhere : sucker black, clothed at the tip 

 with tawny hairs ; palpi tawny, slender, very long, beset with short 

 black hairs : feelers bright pale ferruginous ; second joint armed 

 with a bristle ; third joint linear, conical at the tip, about thrice the 

 length of the second ; bristle black, bare, much more than twice the 

 length of the third joint ; its second joint short but longer than the 

 first: chest purple, adorned in front with two short pale blue stripes, 

 and on each side with a cluster of three small spots, behind which 

 there is a short stripe of the same colour : breast blue, tinged with 

 green and purple : abdomen obconical, a little broader but not 

 longer than the chest, blackish purple, adorned on each side with 

 three brilliant bluish green short bands, extending equally above 

 and beneath ; the hindmost pair occupy the tip and are there 

 united ; no furrow nor notch at the tip : legs black, clothed with 

 black hairs and bristles ; foot-cushions pitchy : wings colourless, 

 dark brown near the base, which is tawny ; wing-ribs pitchy ; veins 

 black ; tip cross-vein forming an obtuse angle with the fourth lon- 

 gitudinal vein, very slightly curved inward before the middle, 

 straight from thence to the tip, joining the border at some distance 

 above the tip of the wing ; lower cross-vein straight, with the excep- 

 tion of two very slight curves, one inward near the base, the other 



