CERIA. 327 



hind femora bLirk, a broad yellow ring filling nearly tl>e middle 

 third, incomplete on inner side. Winfjs yellowish-grey ; anterior 

 half dowu to 3rd vein brown ; halteres pale yellow. 



Length, 15 mm. 



Described from a single d" in the British Museum, liangoon, 

 iii. 1881 {Bingham). The peculiarly-sliaped elongate spots on the 

 3rd and 4th abdominal segments easily separate this species from 

 the others in the SjMximorpha-^von^. 



253. Ceria triaugulifera, Brun. 



Ceria trianyulifera, Bruuetti, Rec. Jnd. Mus. ix, p. 273(]91o). 



c? 5 . Head : eyes in <S contiguous for a very short space only ; 

 ocellar prominence filling entire vertex ; a little golden-yellow 

 hair just over junction of eyes. Frons black, rest of front part 

 of head down to mouth-opening rather bright lemon-yellow. A 

 large, semicircular black spot (convex side uppermost) embracing 

 antennal prominence, joined to black upper part of frons by a 

 somewhat narrow black stripe, and also joined by a black stripe 

 below antennjE to an irregular elongate-triangular spot on face, 

 apex downwards, with rounded angles and incurved on the two 

 sides ; the lowest part of this triangle does not quite reach the 

 mouth-opening. Cheeks lemon-yellow, with a broad black stripe 

 from lower corner of eye to lower corner of cheek. Mouth-parts 

 blackish. Antennal prominence ferruginous-brown (there is no 

 distinct petiole) ; basal half of 1st joint, apical half of 2nd and the 

 3rd joint wholly, black, tlie three joints forming an elongate club. 

 A broad bright yellow band betiind vertex and upper post-ocular 

 orbit. Occiput black, yellowish towards sides. Thora.v dull 

 black with just perceptible black pubescence and lemon-yellow, 

 more or less oval, spots |)laced as follows: on humeral calli, at 

 each end of transverse suture, on mesopleura, and one placed 

 transversely on sternopleura. A faint yellow line indistinctly 

 along suture. Metaiiotum blaclc. Scutellum yellow, with a basal, 

 rather small, black semicircular spot. Abdomen black ; 2nd segment 

 often with a narrow dull reddish-brown tinge at base and tip. A 

 large yellow spotat each side of 1st segment ; hind margins of 2nd, 

 3rd and 4th segments yellow ; a little yellow tomentum on hind 

 part of -1th segment. Legs : coxa) black ; anterior femora in <S 

 mainly black, brownish-yellow at base and tips, in $ lemon-yellow, 

 a little browner on apical half, with a black irregular streak on 

 under side and a trace of one aiiove ; hind pair lemon-yellow 

 basally, brownish-yellow apically with an intermediate black band 

 which is considerably wider on under side and is nnich wider in 

 S than § . Tibiie brownish-yellow, a little darkei- towards tips ; 

 hind ])air moderately curved. Tarsi light brown. Wings grey ; 

 anterior part as far as spurious vein on basal half, and as far as 

 3rd vein on apical half, rather dark brown. Halteres yellow. 



I^ength, I 2 mm. 



