OPCODES. 171 



130. Oncodes fuscus, Brun. 



Oncodes fuscus, Brunetti, Eec. Ind. Mus. vii, p. 477 (1912). 



? § . Head wholly blackish ; eyes closely contiguous ; vertex a 

 little prominent; two ocelli; some black hairs on the rather 

 puffed-out occiput. Arista pale yellowish, nearly transparent, 

 shaped as in 0. octomaculatus, Brun. Thorax wholly dark shining 

 brown, with greyish-brown pubescence. Abdomen dark nut- 

 brown, with greyish-brown pubescence ; the sides and venter a 

 little darker; hind margins of segments with a trace of a narrow 

 black border. Legs uniformly brow-nish yellow ; coxae darker 

 brown. Wings colourless, the stronger veins brownish yellow. 



Length, 3 mm. 



Described from a single specimen in the Indian Museum from 

 Sahelwa, Bahraich District, United Provinces, India, 2. iii. 1909. 



Prom the relatively smaller size of the head and the more 

 puffed-out occiput I infer that the present specimen is a 2 . 



In the Pusa collection is an Oncodes representing a new species 

 allied to fuscus from Bengal, but the abdomen is missing. 



131. Oncodes angnstimarginatus, sp. nov. 



Head with frons and antennae brownish yellow; eves and vertex 

 black ; occiput blackish, with a row of bristly black hairs towards 

 the margin. Thorax moderately shining black, covered with 

 moderately short, rather dense, brownish-yellow pubescence ; 

 scutellum similar. Abdomen moderately shining black, with 

 minute black pubescence ; hind margins of all segments clearly 

 defined, narrowly cream-yellowish ; venter mainly yellow, basal 

 part black. Legs shining black, minutely pubescent ; basal half of 

 all tibiae brownish yellow, the colour rather more extended on inner 

 side ; tarsi dark brownish black, more than the basal half of meta- 

 tarsi brownish yellow, claws black. Wings distinctly brownish 

 yellow, veins very dark brown; thoracic squamae shining black, 

 with minute yellow pubescence ; balteres yellow, knobs black. 



Length, 5 mm. 



Described from a single specimen in the British Museum from 

 Pirivipancheram, Ceylon, 21. i. 1892 (Col. Yerbury). A note 

 adds : — " Only example seen ; at top of hill, found near form of 

 a sambur." A second specimen from Pusa, 6.xii. 1911, with the 

 thorax all black. 



132. Oncodes rufomarginatus, sp. nov. 



Head with eyes black ; the triangular frons blackish, with 

 microscopic grey pubescence; extreme margin white-dusted. 

 Antenna) with 1st and 2nd joints black, with microscopic grey 

 pubescence ; 3rd of normal shape, basal swollen part shining 

 brow y nish black, remainder brownish yellow. Thorax moderately 

 shining black ; dorsum wholly covered with fairly dense, pale 



