76 Orthorrhapha brachycera. 



yellowish, sometimes ferrugineous hairs. The short hairs on the legs 

 all yellowish or deeper yellow; long, thin hairs are found on the 

 ventral and posterior sides of the femora, on the ventral side of the 

 anterior tibiæ and a few on the ventral side of the hind tibiæ; they 

 are yellowish on the femora, only dorsally on the posterior side of 

 the front femora generally black; on the tibiæ they are blackish to 

 a great extent. Spine-like bristles are found on the ventral and front 

 sides of the posterior femora, but in small numbers; on the dorsal 

 and posterior sides of the front tibiæ and on the various sides of 

 the posterior tibiæ except the posterior side of the hind tibiæ ; finally 

 some are found apically on the posterior femora; on the ventral side 

 of the front femora none are found ; the spine-like bristles are almost 

 all black, only on the ventral side of the hind femora there are 

 generally a few yellow; on the posterior side of the front tibiæ they 

 are long. Wings hyaline at the base and in the middle, broadly 

 greyish tinged along the anterior and hind margin and the apex. 

 Veins brown, the subcostal vein ferrugineous. Balteres yello^^^ 



Female. Ovipositor black, rather high, scarcely as long as the 



two last segments; the 

 lower edge very convex, 

 almost obliquely cut at 

 the end ; the second dorsal 

 piece is more than half 

 the length of the first, the 

 connecling line between 

 the two pieces is double 

 Fig.29. E. rufibarbis, female o^npositov. curved : the lamellæ are 



rhomboidal, sparingly punctate; the apical part of the lower piece is 

 obliquely striated. The ovipositor is sparingly hairy, below there are 

 some longer hairs. 



This species varies in colour, especially on the thorax, from more 

 grey to more brown, and the hairs from yellowish towards ferru- 

 gineous. 



Length 17—21 mm. 



E. rufibarbis is not common in Denmark, but has yet been caught 

 in most parts of the country; vicinity of Copenhagen, Tisvilde; on 

 Funen at Odense and Middelfart and in Jutland at Silkeborg and 

 Hald near Viborg. It is a somewhat late occurring species, my dates 

 are ^^h — ^^Is. It occurs especially in dry and sandy localities. 



Geographical distribution: — Northern and middle Europe down 

 into France; towards the north to middle Scandinavia. 



