Dolichopodidae. 287 



somewhat long on the first segment. Venter green, grey pruinose, 

 with black hairs, longer and pale towards the base. Legs somewhat 

 short and robust, yellow ; coxæ grey, the front coxæ metallic green, 

 whitish grey anteriorly; femora somewhat thick, especially front and 

 hind femora; anterior tarsl with the apex of metatarsus, the apical 

 haif of the second joint, and the three last joints black ; hind tarsi 

 black with only the base of metatarsus pale; the tarsi somewhat 

 short, hind metatarsus longer than the second joint; the pulvilli on 

 the front tarsi large and elongated. The legs are haired with black 

 hairs, which are longer than usual ; the coxæ have bristly hairs 

 anteriorly, the hind coxæ two or three bristles on the outside; the 

 femora have rather long hairs below, somewhat bristly towards the 

 apex; the hind femora have some preapical bristles, placed above; 

 front tibiæ with bristles above and two ventral or postero-ventral 

 bristles; posterior tibiæ with two rows of dorsal bristles, the middle 

 tibiæ have no ventral bristles, the hind tibiæ two ventral or antero- 

 ventral bristles; all bristles somewhat long, especially those on the 

 hind tibiæ. Wings slightly greyish tinged, almost hyaline; veins 

 blackish brown, a little paler at the base; the discai vein with a 

 slight curve. Squamulæ yellow, with a pale yellow fringe. Halteres 

 yellow. 



Female. Quite similar to the male; epistoma somewhat broader 

 and with parallel margins, grey; palpi a little larger, likewise grey. 

 Antenna as in the male. Also the legs as in the male, but the 

 femora much shorter-haired below, the middle tibiæ with a ventral 

 bristle near the apex and the front pulvilli not enlarged. 



Length 4,5 mm. 



M. maritimae is a very interesting species, but it seems to be 

 very rare in Denmark, only one specimen, a female, has been taken 

 in Jutland at Horsens on the shore in July 1878 (H. J. Hansen). It 

 occurs at the shore where also the pupæ are found. 



Geographical distribution:— Europe down intoSpain; its northern 

 limit is in Denmark, and it occurs in England, where it was originally 

 detected. 



17. Xipliaiid.riiiin Loew. 



Somewhat slender species of small or smallish size, and of rather 

 dark metallic green colours, sometimes with yellow colouration on 

 abdomen. Also this genus is related to and similar to Porphyrops. 

 Head a little broader than thorax, semiglobular; there are as usual 

 a pair of ocellar, outer vertical and smaller postvertical bristles, and 

 small hairs on the ocellar tubercle. The eyes are hairy ; the facets 



