GENUS SABETHES 477 



the venter yellow. Tibise and first tarsal joints of middle legs 

 provided with a paddle-shaped expansion of long, hair-like scales, 

 the other legs simply densely scaled. Generally deeply coloured, 

 with varying reflections throughout. 



Head and appendages clothed with Hat, steel-blue scales ; antenn* of 

 $ , with very dense verticils, approachmg the characters of a male ; her 

 palpi three-jointed, about one-fourth the length of the proboscis, acutely 

 fusiform ; those of $ , much shorter than the proboscis, the last three 

 joints of nearly equal length, with tufts of long flexible, silky hairs. 

 Thorax black, with flat purple and blue scales. Abdomen covered with 

 deep blue scales, purple and coppery at the apex, with silverj' spots 

 laterally, yellow ventrally. Legs steel-blue or purple, the mid leg with 

 a dense mass of long scales formhig a kind of paddle on the tibia and 

 first tarsal joint. Wings with rather large flat brown scales, violet along 

 the costa. Length. — -6 nmi. 

 Habitat. — Amazon region. 



2. SABETHES NITIDUS, Theob. (Monog. II, p. 347). 



Specimens of this new species have been recently received 

 from Para. It closely resembles the preceding, differing mainly 

 in the scaly " paddle " of the raid leg being white on its apical 

 half, instead of wholly black. 



3. SABETHES LONGIPES (Fabr.). 



S. loculipes, R. Desv. 

 Syst. Antl. iv, 400, 2 (1794), Fabricius ; Aussereurop. Zwei. Ins. i, 11 (1828), 

 Wiedemann ; Essai s. 1. tr. d. Culicides, M6m. d. 1. Soc. d'Hist. Nat. de 

 Paris, iii, (1827) (= loculipes), Desvoidy ; Hist. Nat. Dipt, i, 36, 16 

 (1834), Macquart ; Dipt. Exot. i, 34, 8, pi. 1, fig. 2 (1888), and Sup. i, 

 8, 9, pi. 1, fig. 2 (1848), Macquart ; Dipt. Argentina, p. 67 (1891), 

 Arribdlzaga.) 



Plate xi, fig 8+ Fore leg : 8m, Mid leg ; 8h, Hind leg. 



"Wings unspotted ; dusky-brown, but with some metallic lustre. 

 Thorax unadorned, clothed with broad, lanceolate scales with 

 azure-green and bronzy reflections. Abdomen unadorned, of 

 much the same tinting, but the venter whitish. Last three mid- 

 tarsal joints white ; the hind tarsi white beneath but dark above ; 

 all three legs with broad paddle-shaped expansions. 



$ . — Head dark brown, with metallic flat scales, mauve at tlie sides ; 

 antennie dark brown, basal joint almost black, with a grey rim ; paljii 

 very short, black scaled ; proboscis of moderate length, curved, black- 

 scaled, metallic ; eyes and clypeus black. Thorax black, with metallic 



