198 DOLICHOPID^. 



The female has short antennas, with the third joint ovate, the long 

 arista placed a little before its tip ; the wings broader than in the 

 male ; the femora and tibia3 yellow, only the tip of the hind femora a 

 little darker, the tarsi dusky, with the metatarsus yellowish except at 

 the tip. 



Common in swampy spots. (E. S. I.) 



6. cupreum, Mq. d. n. fr. 52. 3 (1827). macrocerum, Ct. ! 

 appendiculatum, Ztt. ; Lw. Atro-virens, nitidum, fronte cyanea, pedi- 

 bus flavis, femoribus postids muticis, coxis anterioribus bisetis posticis 

 unisetis ; Mas. antennis thorace longioribus, arista brevissima, genubus 

 tibiis tarsisque posticis nigricantibus, appendicibus externis hypopygio 

 duplo longioribus, internis filo compresso apice ciliato terminatis. Long. 

 l.U-1! ; alar. 3-3| lin. 



The description of the preceding applies to this also, so exactly, 

 that it is necessary only to mention the differences. The appen- 

 dages are longer, the outer ones twice as long as the hypopygium, 

 strap-shaped, obtuse, pubescent, dingy yellow, but appearing black- 

 ish at the base, where they are applied to the inner ones, which 

 end in a long, pale, compressed, slightly curved thread, ciliated at 

 the tip. The females of the two species are scarcely distinguishable. 



In the like situations with the last, and equally common. 

 (E. S. I.) 



7. macrocerum, Ztt. d. s. 3057. 3 (1849). monotrichum, Lw. 

 caliginosum, Hal. Atro-virens, nitidum, fronte cyanea, pedibus Jlavis, 

 femoribus posticis et coxis posterioribus unisetis ; Mas. antenriis thorace 

 paulo brevioribus, arista brevi, geuubus tibiis tarsisque posticis nigri- 

 cantibus, appendicibus externis hypopygio duplo longioribus capillo termi- 

 natis. Long. 1^ ; alar. 3 lin. 



Metallic blackish-green. Front steel-blue. Face silvery- white. An- 

 tenna not as long as the thorax, third joint about three times as long as 

 the arista. Scutellum bluish. Wings brownish. Inner appendages 

 short, dilated at the tip, but thinly ciliated on the lower edge ; outer 

 ones elongated, dilated in an angle near the base, after this attenuated, 

 linear, ending in a single long hair. Legs yellow ; posterior coxae grey 

 outside, and each with a single black bristle, the fore pair without any ; 

 in the hind pair the upper edge of the femora towards the tip, with the 

 tibiaB and tarsi, blackish-brown, the tibiae often lighter ; the anterior 

 tarsi dusky towards the tip ; the fore metatarsus a little curved and 

 fringed above with longer pubescence ; the spines of the tibiaB rather 

 stronger than in the preceding two species. The female probably may 

 be best distinguished from them by the fewer black bristles on 

 the coxa3. 



Not uncommon. (E. S. I.) 



8. fissum, Lw. e. z. xi. 128. 26 (1850). Atro-virens, nitidum, 



