CHltl'SOPILUS. 141 



brownish yellow, stigma honey-yellow ; the two upper veins from 

 the discal cell very approximate at their bases, the upper one a 

 little turned downwards ; anal cell closed well before the border. 



Length, 8 mm. 



Described originally from a single § from Tillangchong, Nicobar 

 Islands. 



This species, which has not been seen by me, is said by Schiner 

 to differ from C. ferruginosus, "Wied., by the absence of the 

 brownish wing-tip and the honey-yellow stigma. The two shining 

 white spots above the antennae seem characteristic, otherwise the 

 differences from Wiedemann's species appear slight. 



106. Chrysopilus ferruginosus, Wied. 



Leptis ferruginosus, Wiedemann, Zool. Mag. i, pt. 3, p. 4 (1819); 



id., Auss. Zweiti. i, p. 224 (1828). 

 Heliomyia ferruginea, Doleschall, Nat. Tijd. Ned. Ind. xiv, p. 402, 



pi. vii, fig. 5 (1857). 

 Chrysopilus frater, Brunetti, Bee. Ind. Mus. ii, p. 481 (1909). 

 Chrysopilus ferruginosus, de Meijere, Tijd. v. Ent. liv, p. 287, 



pi. xviii, fig. 8 (1911). 



<3 . Head with vertex and frons blackish or dark grey, lighter 

 above antenna?, with black hairs on vertex : proboscis and palpi 

 tawny, face below antennae grey ; antennae brownish yellow, 3rd 

 joint' sometimes a little brownish; lower facets of eyes only 

 slightly smaller than upper ones, not always clearly demarcated ; 

 occiput blackish, with whitish hair behind eyes. Thorax and 

 scutellum light tawny brown, with minute golden-yellow impressed 

 pubescence ; sternopleurae sometimes nearly livid ; scutellum with 

 pale yellow hairs on hind border. Abdomen light tawny brown 

 to deep orange, darker towards the tips, with yellowish-grey 

 pubescence and some black hairs intermixed ; posterior borders of 

 segments (especially the hinder ones) narrowly black ; venter 

 similarly marked. Legs tawny; coxae with golden-yellow hairs; 

 tibiae and tarsi gradually becoming darker and browner up to the 

 tips of latter. Wings yellowish grey, sometimes slightly darker 

 towards tips ; 2nd posterior cell pointed at base ; outer side of 

 discal cell quite straight; stigma dark brown, oval, distinct; 

 costal cell yellowish ; halteres yellow, knobs brown. 



Length, 10-11 mm. 



Described from the two specimens forming the types of my 

 frater from Tenasserim and two ferruginosus from Batavia, 

 x-xi. 1907 (Jacobson), named by Dr. de Meijere ; all four speci- 

 mens in the Indian Museum. 



107. Chrysopilus unicolor, Brim. (PI. II, fig. 20.) 



Chrysopilus unicolor, Brunetti, Bee. Ind. Mus. ii, p. 432, pi. xii, 

 fig. 13 (1909). 



S . Head with vertex very small, raised, dark brown ; ocelli 

 shining, brownish white, semi-transparent; face grey-dusted; 



