48 STRATIOMYIDjE. 



short yellow pubescence ; back of head black ; posterior orbit of 

 eyes with narrow silvery-white pubescence. Antennae blackish, 

 inner side of 3rd joint pale; style closely pubescent. Thorax 

 black, moderately shining, with very short black hairs ; covered 

 with microscopic grey hairs, except along a broad median line and 

 on two large spaces towards each side of the dorsnm, i. e., one 

 behind the shoulder and above each wing ; sides of thorax shining 

 black, with microscopic grey pubescence below shoulders and some 

 short snow-white hairs above the fore coxae ; there is also a rather 

 wide perpendicular side-stripe of similar pubescence above the 

 middle coxae, joining the dorsal pubescence in front of the wing ; 

 side-spines short, strong, black. Scutellum black, with short black 

 hairs and concolorous grey pubescence, and two broadly separated, 

 strong, short, black spines on hind margin. Abdomen black, with 

 grey pubescence forming a broad dorsal line on hinder half and a 

 subtriangular spot towards each side of each segment. Venter 

 shining black, practically bare. Legs black, with very minute 

 whitish pubescence ; basal fifth of anterior femora and basal fourth 

 of hind pair, also major portion (from the base) of .'ill the tarsi, 

 pale yellowish white. Wings subhyaline ; stigma dark brown, 

 roughly oval, very distinct ; tip of wing from outer side of discal 

 cell, thence in a straight line to the costa and extending hind- 

 wards, until filling the 2nd posterior cell, distinctly brown, the 

 colour filtering more or less into the 3rd posterior cell ; halteres 

 with stem yellow, clubs dark brown. 



Length, 11 mm. 



Kedescribed from a single perfect $ in my collection from 

 Kandy, Ceylou, viii.1908 (Green) ; Pollibetta, Coorg, x-xi. 1915 

 (Fletcher). Loew's maculipennis (1856) from South Africa is a 

 different species. 



Genus RUBA, Walk. 

 Ruba, Walker, Proc. Linn. Soc. Lond. iv, p. 100 (1860). 



GENOTYPE, Ruba injlata, Walk. ; by original designation. 



Body thick and broad ; head much narrower than thorax ; 

 proboscis and palpi very short. Antennae nearly as long as 

 breadth of head ; " 3rd joint broader and longer than the flagellum, 

 of which the joints are short, compact, and minutely setulose ".* 

 Thorax a little longer than broad, scutellum unarmed ; abdomen 

 globose, very much broader and a little longer than thorax. Legs 

 short. ' Wings moderately broad ; " 1st cubital vein not one-third 

 of length of 2nd ; four complete externo-medial veins ; subanal 

 vein curved, joining the anal vein at some distance from the 

 border ; discal areolet elongated exteriorly, irregularly triangular, 

 exterior side very short." 



Range, India, Celebes, Papua. 



* Walker's '' flagellum " is the style. 



