1880.] 27 



ut in M. simplice ; ocuUs sub-co)di<piis ; pedibus anticis ut in M. sim- 



plice armatis ; tibiis intermediis tuberculo hirsuto hasi posito ; tibiis 



posticis paulo curvatis, et extra ciliatis ; alls suhfuscis ; alulis obscuris. 



Long. 4 — 5 lin. 



Syn. — Cyrtoneura podagrica, Loew,Wien. ent. Mon., i, 45; Scbincr, 

 Dipt. Austr., i, 596. 



(?. Colour shining dark bluo-black, without any tinge of green : thorax and 

 abdomen mai'ked as in the two precedingspecies, but having the latter less tessellated 

 ■with white : head as in M. simplex, the eyes near together, though not contiguous : 

 legs, fore femora ciliated with a comb-like row of bristles on their under surfaces, as 

 in M. simplex ; fore tibiae nearly bare ; middle legs armed as in ]\I. horiorum, and 

 also witli a bristly tubercle seated on the outer side of the head of the tibia ; hind 

 tibiae a little curved, clothed with long soft hairs on their outer sides : alulets with 

 the lower scale of an uniform brownish-yelloW colour : wings tinged with brown at 

 their bases and along the fore borders, the longitudinal veins also a little clouded ; 

 the third longitudinal vein armed at the base with a few spines, as in M. simplex : 

 the $ is unknown to me. 



This fly has not yet been found in Britain, but inhabits lofty 

 mountains in Germany, where it is said to be not uncommon. It is 

 the largest species in the genus, and is of rather a darker colour than 

 the others ; I have not seen a female, but my friend Mr. Kowarz, of 

 Franzensbad, kindly sent me a male specimen. 



4. CUEVIPES, Macq. CcBruleo-nigra nitida ; tJwrace albo-lincato 

 et abdomine cinereo-tessellato ; ^ tibiis p>osticis valde arcuatis ; meta- 

 iarsisque p)Osticis barbatis ; femorihus intermediis subtus in basi spinula 

 erecta armatis ; tibiisque intermediis inclinatis. Long. 2| — 3 lines. 



Stn. — Curtoneura curvipes, Miicq., Dipt, du Nord., 148, et Insect. 

 Dipt., ii, 276. Cyrtoncura curvipes, Zett., Dipt. Scand., iii, 1347 ; 

 Eond., Dipt. Ital., v, 215. Camilla cenescens, R. Desv., Dipt, envir. de 

 Paris, ii, Gil. 



This species varies a good deal in colour, it is less brilliant and less distinctly 

 striped and tessellated than either of the preceding ones, though marked in the 

 same manner ; there is often a greyish, and sometimes an seneous tinge on the ab- 

 domen, and the thorax is less blue than black ; the $ has the eyes somewhat widely 

 separated ; the fore femora are ciliated beneath as in M. simplex ; the fore tibiae 

 simple ; middle femora armed beneath at their bases with a single long strong spine, 

 and with a few long bristles on their outer and under surfaces near their apices ; the 

 middle tibiae have an angular bend in the middle, the lower halves being directed 

 outwards, they are also ciliated along their whole outer surfaces with little stiff 

 rough spines, similar to those seen in M. hortonim and M. podayrica ; the hind 

 femora are evenly clothed along their whole under surfaces with hairs of a moderate 

 length, and have a tuft on their upper surfaces near the base ; the hind tibia; are 

 rather long and strongly curved inwards ; they are bare on their inner sides, with 



