1880.] 27 



ut in M. sirnplice ; oculis sub-contiyuis ; pedibus anticis ut in M. sim- 



plice armatis ; tibiis intermediis tuberculo hirsuto basi posito ; tibiis 



posticis paulo curvatis, et extra ciliatis ; alis subfuscis ; alulis obscuris. 



Long. 4 — 5 tin. 



Bur. — Cyrtoneurapodagrica, Loew,~VVien. ent. Mon., i, 45 ; Schiner, 

 Dipt. Austr., i, 596. 



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

 abdomen marked as in the two preceding species, 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 tibise nearly bare ; middle legs armed as in M. hortorum, and 

 also with 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 9 is unknown to me. 



This fly has not yet been found in Britaiu, 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. curyipes, Macq. Cceruleo-niyra nitida ; tliorace albo-lineato 

 et abdomine cinereo-tessellato ; £ tibiis posticis valde arcuatis ; meta- 

 t arsis que posticis barb at is ; femoribus intermediis subtus in basi spinula 

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



Stn. — Gurtoneura curvipes, Macq., Dipt, du Nord., 148, et Insect. 

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

 Bond., Dipt. Ital., v, 215. Camilla cenescens, B. Desv., Dipt, envir. de 

 Paris, ii, 641. 



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 eeneous tinge on the ab- 

 domen, and the thorax is less blue than black ; the S 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 tibise 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. hortorum and M. podagrica; 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 tibise are 

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



