RHAPHIUM. 203 



joints togetJier, hairy towards the tip outside, but not dilated. In the 

 female the pubescence of the coxae is pale, the femora and tibiae yel- 

 low, the anterior or at least the fore femora at the base beneath, the 

 hind pair at the tip above dusky, the hind tibiae have the extreme base 

 dusky ; the anterior tarsi yellowish, with the tip dusky ; the metatarsus 

 of the fore pair as long as all the following joints together. As there is 

 no other species noticed by Loew which answers more nearly to Mei- 

 gen's description, it seems most probable that the latter was mistaken 

 as to the colour of the narrow face of the male which he had in view. 

 Not rare. (E.S.I.) 



17. fascipes, Mg. iv. 54. 20 (1824); Ztt. ; Lw.latipes, Mq. 

 insulsum, Hal. Obscure viridi-ceneum, pedibus nigris, tibiis anterioribus 

 navidis, postids albidis basi apiceque nigris, femoribus posticis muticis ; 

 Mas. capite nigro, tibiis posticis apice valde dilatatis, appendicibus hypo- 

 pygii externis integris elongatis, internis incouspicuis ; Fcem. femoribus 

 posticis basi flavidis. Long. 2i ; alar. 4-| liri. 



Dark brassy-green, not shining. Face and beard black in male. In 

 the female the face is dingy white, and the front and thorax have a 

 yellowish-grey tarnish. Arista as long as the antennae in male, more 

 than twice as long in the female. Wings dark hyaline, more brownish 

 in female. Fringe of the alulae black in male. Inner appendages of 

 the hypopygium very short, triangular, not visible externally ; outer 

 ones long, rather broad towards the base, much attenuated towards the 

 tip, undivided. Legs olive-black, the tip of the femora, the tibiae and 

 the tarsi yellowish in the anterior pairs, the tarsi dusky at the tip ; the 

 base of the hind femora yellowish in the female ; the hind tibite yellowish- 

 white, black at the base and from the middle to the tip, much com- 

 pressed and dilated towards the tip in the male. 



Not rare. (E. I.) 



The remaining species form a peculiar group, with the long 

 and slender tip of the second joint of the antennae received into 

 a deep notch in the base of the third joint : this is elongated in 

 the male, and begins to taper to a point at some distance from 

 the base ; in the female it is short and nearly triangular ; the 

 arista, which is seated at the tip of it, or a little before, is usually 

 short in the male, but much longer than the antennae in the 

 female, with the last joint deflected. The face, narrow in the male, 

 broad in the female, rather concave above and elevated towards 

 the mouth, is glossed with white; the cilia of the lower orbit 

 whitish, with but few hairs behind them ; the proboscis not very 

 prominent even in the female. The scutellum with two long 

 bristles, the prosternum unarmed. The discal transverse vein is 

 distant, usually by little more than its own length from the hind 

 margin, and not very far beyond it the subapical vein is very 



