MYDAS. 317 



from and vertex sunken, ocelli indistinct or removed far from 

 vertex ; proboscis only slightly prominent,* labella terminal, tri- 

 angular, compressed; palpi one-jointed; antenna? porrect, at 

 base approximate, clubbed or knobbed at tip, three- jointed, the 

 first two moderately short, the 3rd elongate, with annular im- 

 pressions. Thorax subquadrate, with sparse, sometimes thicker 

 pubescence on dorsum and coarse pubescence towards the sides ; 

 pleurae with more pubescence in some species than others ; 

 humeri prominent: scutellum oblong, small, unsphied, meta- 

 notum very large. Abdomen elongate, 7-segmented, with light 

 pubescence only, the last segment in the 5 without a circlet of 

 spines ; genitalia of moderate size in <5 . Legs strong and stout ; 

 hind femora slightly thickened, generally serrate or spinose on 

 underside ; hind tibiae generally with a spur. Wings : auxiliary, 

 1st, 2nd, and 3rd longitudinal veins as in the family diagnosis, 

 both branches of the latter vein ending in the 1st; the 4th vein's 

 upper branch ends in the costa distinctly before the wing-tip, its 

 lower branch bends downward and joins the upper branch of 

 the 5th vein. As for the small vein forming the outer side of 

 the discal cell, it may be regarded as a lower prong of the upper 

 branch of the 4th vein or as a discal cross-vein. Remaining 

 veins in accordance with the family diagnosis. 



Range. S. Europe,^. Africa, India, Mala} r Archipelago, North 

 and South America, and Cuba. 



Life-history practically unknown. 



Table of Species. 



Third aiitennal joint bright red ruficornis. Wied. 



Third antennal joint black. 



Abdomen wholly black carmichaeli, Brum 



Abdomen with pale hind margins to segments . annulata, Brun. 



250. Mydas ruficornis, Wied. 



Mi/das ruficornis, Wiedemann, Analec. Entom. p. 20(1824); id., 

 Auss. Zweifl. i, p. 242 (1828) ; id., Monog. Gen. Midas, p. 46, 

 pi. lii, fig. 11. 



" Head black ; 1st and 2nd antennal joints black, 3rd fiery red- 

 yellow ; epistome on both sides [presumably above and below] 

 with yellowish hairs ; a white hair spot on the side of the 

 jintennee ; occiput whitish. Thorax brownish honey-yellow, be- 

 coming blackish behind. Abdomen almost metallic black, rather 

 sparsely punctured. Wings brown, with violet-blue reflections ; 

 halteres brown. Legs black ; hind tibia? and base of tarsi dark 

 red-brown ; hind femora below with three or four rather long 

 spines." ( Wiedemann.) 



LengtJi, 18 mm. 



Tranquebar. 



Type in the Vienna Museum. 



* Schiner adds " with four bristles." 



