il8 MR. WALKER ON DIPTERA COLLECTED AT MAEESSAR. 



Fam. SIPPHID^, Leach. 

 G-en. Ceria, Fair, 



83. Ceria lateralis, n. s. Mas. Nigra, capite vittis guttisque 

 duabus, thorace maculis octo, pectore fasciis duabus, abdomine ma- 

 culis duabus basalibus fasciisque duabus flavis, antennarum petiolo 

 pedibusque rufis, alls subcinereis, basi costa strigaque fuscis, halteribus 

 flavis. 



Male. Black ; head with two yellow stripes in front, and with a yellow 

 dot on each side at the base of the antennae ; petiole of the latter red- 

 dish ; 3rd joint elongate-fusiform : thorax with three yellow calli on 

 each side ; scutellum with two oblique fusiform yellow spots which are 

 united hindward ; pectus with a yellow band on each side ; abdomen 

 with a slender petiole which is as long as the terminal fusiform part ; 

 a yellow spot on each side of the base; hind borders of the 1st and 

 2nd segments yellow ; legs red ; tarsi piceous ; wings greyish, dark 

 brown at the base, whence a dark brown streak proceeds to the disk ; 

 costa dark brown, blackish exteriorly ; veins black ; halteres yellow. 

 Length of the body 12 hues ; of the wings 16 lines. 



Gen. MiLESiA, Latr, 



84. MiLESiA coNSPiciENDA, n. s. Mas et Foim. Nigra, capite flavo 

 maculis duabus nigris, palpis antennisque rufescentibus, thorace vittis 

 fasciis maculisque duabus, scutelli margine abdomineque fasciis tribus 

 flavis, abdomine fasciis tribus chalybeis, pedibus luteis, femoribus 

 nigro vittatis, tar sis nigris apice luteis, alis cinereis apud costam fuscis. 



Male and Female. Black ; head yellow, with an elongate black spot 

 above the antennae, and with another above the epistoma ; mouth 

 black ; palpi and antenna3 reddish ; thorax with two yellow stripes ; 

 each of its sides in front with a large yellow spot, the latter connected 

 with a band across the pectus ; two yellow bands, the 1st interrupted ; 

 scutellum bordered with yellow ; pectus with two yellow bands on each 

 side; abdomen with three yellow bands and with three chalybeous 

 bands ; 3rd yellow band slightly interrupted ; legs luteous ; femora 

 striped beneath with black ; tarsi black, v/ith luteous tips ; wings grey, 

 brown along the costa ; veins black ; halteres yellow. Male. Abdo- 

 men with a subapical interrupted band ; 1st band notched on the hind 

 side. Female. First abdominal band slightly interrupted. Length 

 of the body 8-9 lines; of the wings 14-16 lines. 



Gen. Graptomyza, Wied. 



85. Graptomyza tibialis, Wlh. See Vol. II. p. 95. 



F(£m. ? Lutea, crassa, lata, pubescens, vertice et epistomatis linea nigris, 

 thoracis maculis duabus, disco postico, scutelli pectorisque discis cu- 

 preo-nigris, abdomine fasciis tribus nigris, femoribus anterioribus 

 tibiisque nigro fasciatis. 



FemaUl Luteous, pubescent, broad, thick; vertex black; epistoma 



