be SYEPHID^. 



hairs on hinder part ; face yellow, no median stripe but central 

 bump sometimes a little darker ; face with blaclt pubescence ; 

 cheeks blackish-grey. Antennae wholly reddish-brown, a little 

 paler below, sometimes nearly all blackish, arista dark. Occiput 

 grey, marginal fringe yellowish, paler below and deeper behind 

 vertex ; no long black hairs behind vertex. In 5 , frons gradually 

 widening to level of antennse, where it is distinctly more than 

 one-third of the head; face gradually narrowing downwards; 

 frons shining black with violet reflections and very dense short 

 black pubescence; rest of frons and whole of face bright cln-ome- 

 yellow, former with a little black pubescence but bare just above 

 antennse ; face with almost invisible pale pubescence. Thorax 

 shining a^neous-black, side margins distinctly yellowish (at least 

 in the $ before me); pletirse aeneous with yellowish tinge ; under- 

 side aeneous; sciitellum bright yellow. Pubescence of whole 

 thorax dense, bright yellow. Abdomen shining black ; 1st seg- 

 ment, and hind margin of all segments broadly, with distinct 

 though not strikingly conspicuous bluish tinge; 2ud segment with 

 a pair of approximately triangular or oval, moderately large, 

 distinct but not widely separated, yellow spots, placed slightly 

 obliquely, their upper ends passing widely over the side margins 

 near the anterior corners of the segments ; 3rd and 4th segments 

 ■each with a broad orange-yellow band just behind anterior margin, 

 very slightly emarginate in front and deeply so behind, the band 

 suddenly narrowed towards side margins where it passes narrowly 

 over anterior corners of segment ; hind margin of 4th segment 

 narrowly orange ; 5th segment orange with a rather small, more 

 or less oval, blackish spot in centre ; 6th segment entirely orange. 

 Pubescence bright yellow on yellow spots of 2nd segment, very 

 short and inconspicuous on rest of dorsum, pale yellow on the 

 oi'ange bands, practically all bhick elsewhere and along side 

 margins except at base. Venter mainl}^ blackish, j^ellowish 

 towards margins ; genitalia small. Legs orange-yellow. Fore 

 femora in S on basal -f, in $ on less than i ; middle pair in S on 

 basal |, in $ very narrowly ; hind pair on basal ^ in J and not 

 at all in $ , blaclv. Anterior tarsi practically bare, darker ; hind 

 tarsi brown above. Pubescence in c? mainly black behind 

 anterior femora, with some pale hairs at base on middle pair ; 

 bind pair nearly bare ; in $ practically all yellow, some stiff 

 black hairs behind middle and hind femora ; rest of pubescence 

 in both sexes mainly pale, but black on hind tibiae and tarsi. 

 Wings pale gre}^; stigma pale yellowish ; halteres orange ; squamae 

 yellowish-white. 



Length, 9-9| mm. 



Described mainly from a $ in good condition from Simla, 

 8000 ft., 26. V. 1914 {Capt. Evans); the description of the S 

 being incorporated from Verrall. There is no doubt whatever of 

 the identity. The species has several varietal forms in Europe, 

 and extends to North America. 



