LIST OF DIPTEEA. 865 



outward near the tip ; scales dingy white, with tawny borders- 

 Length of the body 5 lines ; of the wings 14 lines. 

 a. — ? From Mr. Children's collection. 



Dexia serena, n. s., fern. Aureo-viridis, thorace cyaneo micante 

 vittis quatuor nigris, scutelli disco purpureo-nigro, margine pos- 

 tico purpureo-nigro, abdomine purpureo fasciis aureis viridibus 

 et cyaneis, apice ventreque cupreis, palpis fulvis, anlennis fer- 

 rugineis, pedibus nigris, alis limpidis. 



Body clothed with black hairs and bristles: head golden, 

 bright green beneath, adorned with white lustre behind the eyes ; a 

 ferruginous stripe widening from the eyelets to the feelers ; epistoma 

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

 the length : eyes pitchy ; fore part nearly flat, its facets a little 

 larger than those elsewhere : sucker black, pitchy and clothed with 

 tawny hairs at the tip ; palpi tawny, thinly clothed with short tawny 

 hairs : feelers pale ferruginous, very short, less than half the length 

 of the face, almost hidden in the cavities formed by the high middle 

 ridge between them ; this ridge much exceeds them in length, but 

 extends hardly more than half way to the border of the epistoma; 

 third joint slightly convex above and below, rounded at the tip, 

 full thrice the length of the second joint ; bristle black, downy, 

 more than twice the length of the third joint, its first and second 

 joints very short ; first joint ferruginous : chest golden-green, 

 slightly tinged with blue, adorned with four indistinct black 

 stripes ; disk of the scutcheon purplish blue ; hind border tawny ; 

 breast bluish green, tinged with purple on each side, clothed with 

 pitchy hairs: abdomen obconical, purple, very little broader and 

 hardly longer than the chest ; fore border of each segment adorned 

 with a golden interrupted band, which is bordered with green and 

 blue ; last segment and underside bright copper-colour ; hind bor- 

 ders of the segments beneath black, which colour passes to the cop- 

 per hue by means of purple, blue, green and gold : legs black, 

 clothed with black hairs and bristles ; foot-cushions dingy yellow : 

 wings colourless, with a small brown spot on the fore borders near 

 the base ; shoulders pale tawny; wing-ribs pitchy, veins black ; tip 

 cross-vein forming an obtuse angle with the fourth longitudinal vein, 

 almost straight, the inward curve being nearly imperceptible, but 

 there is a very short and slight outward curve at the tip, which joins 

 the border at some distance above the tip of the wing ; lower cross- 

 vein with two extremely slight curves, the lower inward, the other 

 outward ; scales dingy white, with dark tawny borders. Length of 

 of the body 5 lines ; of the wings 14 lines. 

 a. Madras. Presented by Walter Elliott, Esq. 



