66 SARGUS MACTANS. 



losity. Front metallic violet, pale yellow above the an- 

 tennae ; face reddish-yellow , infuscated and a little metal- 

 lic below; oral parts pale yellow, Antennae[reddish-yellow , 

 the arista black. From the shoulders to the root of the 

 wings goes a yellow stripe; scutellum with a narrow yel- 

 lowish hind margin. Legs reddish-yellow; hind coxae me- 

 tallic black ; base of the hind tibiae , for about a third , 

 black; the last joints of the hind tarsi also are blackish. 

 Halteres fulvous. Wings greyish, almost hyaline at the 

 basal half; veins black; stigma fuscous, 



16. Sargus laetus , n, sp. 



Thoracis dorso, scutello et metanoto aeneó-viridis ; ca- 

 pite , abdomine pedibusque testacets ; abdominis segmentis 

 2 et d supra fusco-subfasciatis, 4 ei 5 nigro-viridis nitidis; 

 tibiarum posticarum basi nigro ; ocidis subcoJiaerentibus. — 

 cf. Long, 12 mm. 



Front above the antennae reddish-yellow, tapering up- 

 wards to a metallic green stripe, which hardly separates 

 the eyes; face and oral parts pale yellow. Antennae tes- 

 taceous, arista black. Thoracic dorsum, scutellum and me- 

 tanotum bright metallic green , with yellow pilosity , which 

 on the front part and in the sides is longest; scutellum 

 with a narrow yellowish hind margin ; pleurae testaceous 

 with some metallic reflection. Abdomen shining reddish- 

 yellow , with a metallic or copper-colored gloss ; second and 

 third segments each with a brown transverse baud; two 

 posterior segments metallic dark green; genitals black. 

 Legs reddish-yellow, base of the hind tibiae slender and 

 black. Halteres yellow with a brown knob. Wings with a 

 greyish-brown tinge; stigma a little darker, 



A male specimen from Sumatra (v. Lansberge). 



On account of the black base of the hind tibiae closely 

 related to S. mactans. I should consider it as the cT of 

 that species, if not the coloration and pattern of the ab- 

 domen were quite different. 



Notes from the Leyden ^luseum, "Vol. VII. 



