94i MB. WALKER ON DIPTEBA COLLECTED AT MAKES9AR. 



Fam. STEATIOMID^, Raliday. 

 Greu. Ptiloceka, Wied. 



11. Ptllocera smaragdina. Walk. Dipt. pt. 3. 625. 

 Inhabits also the Philippine Islands. 



12. Ptilocera smaragdifera, n. s. Mas. Nigra, thorace pubes- 

 cente vittis duabus smaragdinis, lateribus purpurascentibus, abdo- 

 mine nigricanti-cyaneo sqiiamis lateralibus viridibus, tarsis basi ob- 

 scure rufescentibus, alls subhyalinis, dimidio basali antice nigricaute 

 postice cinei'eo. 



Male. Black, Thorax thickly pubescent, purplish along each side, 

 with two emerald green dorsal stripes. Abdomen blackish blue, with 

 green scales along each side. Tarsi dark reddish towards the base. 

 Wings nearly hyaline ; basal half blackish in front, cinereous hind- 

 ward ; veins black, yellow along the costa exteriorly. Length of the 

 body 5 lines ; of the wings 8 lines. 



G-en. Hebmetia, Latr. 



13. Hermetia bemittens, n. s. Mas et Fcem. Nigra, capite antico 

 livido, antennis basi subtus lividis apice albis, thorace vittis tribus 

 cinereis, abdomine seneo-nigro, tibiis basi tarsisque albidis, alis ni- 

 gricantibus basi subhyalinis. Mas. Abdominis dimidio basali livido. 



Male and Female. Black. Head livid in front; a whitish line along 

 the eye on each side of the front. Antennae livid beneath towards 

 the base ; apical joint elongate-fusiform, white at the tip, as long as 

 all the other joints together. Thorax with 3 indistinct cinereous 

 stripes. Abdomen slightly bronzed, livid for half the length from the 

 base in the male. Tibiae at the base and tarsi whitish. Wings black- 

 ish, nearly hyaline at the base ; halteres livid. Length of the body 

 78 lines; of the wings 12-14 lines. 



Gren. Stbatiomys, Geoffr. 



14. Stratiomys immiscens, n. s. Mas. Nigra, antennis fulvis par- 

 vis, scutelli margine postico spinisque pallide flavis, abdomine pallide 

 flavo fasciis tribus dorsalibus latis nigris postice excavatis, pedibus 

 flavescentibus, femoribus tibiisque nigro fasciatis, tarsis nigris, alis 

 limpidis. 



Male. Black. Head beneath and thorax with whitish down. An- 

 tennae tawny, short. Scutellum along the hind border and spines pale 

 yellow. Abdomen pale yellow, with three broad black dorsal bands, 

 whose hind borders are much indented. Legs yellowish ; femora and 

 tibiae with black bands; tarsi black. Wings limpid; veins brown; 

 halteres pale. Length of the body 6 lines ; of the wings 10 lines. 



15. Stratiomys FiNALis, n. s. Fcem. Nigra, aureo-tomentosa, capite 



