18 STEATIOMID^:. 



Black. Head clothed in front with pale yellow hairs. Proboscis 

 dark brown. Antennae dark ferruginous, black at the base and to- 

 wards the tips. Thorax slightly chalybeous, very thickly clothed 

 with short tawny hairs ; hind border of the scutellum tawny, armed 

 with 2 tawny teeth. Wings white, slightly tawny at the base and 

 along the fore border ; veins tawny. Halteres pale yellow. Abdomen 

 with 3 more or less triangular tawny spots on each side; tip tawny., 

 underside pale green. Legs tawny. Male. Femora black, with tawny 

 tips; a black band round each tibia. Fern. Head with 2 curved 

 tawny stripes and 2 tawny spots on the crown, and with a tawny or 

 yellow band behind the eyes. 



Generally distributed. (E.) 



9. tigrina, Fb.sp.i.ii. 417. 6(1781); Shr.; Gm.;Gf. ; Pz.fn. ! 

 viii. 20 ; Mg. ; LI. ; Mq. nigrita, Fin. ; Ztt. Cyaneo-nigra, antennis 

 nigris, alis albis basi et ad costam subfuscis, abdomine subtus viridi, 

 pedibus fulvis, femoribus nigris, tibiis nigro-cinctis, tarsis apice nigris. 

 Long. 3-i-4-| ; alar. 6-8 lin. 



Bluish-black. Head clothed beneath with pale tawny hairs. Pro- 

 boscis dark brown. Antennae black. Thorax clothed with ferruginous 

 down. Scutellum armed with 2 tawny spines. Wings white, tinged 

 with brown at the base and along the fore border; veins brown. 

 Halteres pale yellow. Abdomen green beneath on the disc. Legs 

 tawny ; femora black ; a black band round each tibia ; tips of the tarsi 

 mostly black above. Male. Head clothed in front with black hairs. 

 Eyes hairy. Jem. Eyes bare. 



Generally distributed. (E.) 



10. hydropota, Mg. zw. iii. 147. 16(1822); Mq.; Ztt. Nigra, 

 capite luteo, antennis ferrugineis aut nigris, scutello fulvo, abdominis late- 

 ribus ventreque viridibus, pedibus fulvis. Long. 4-4^; alar. 9-10 lin. 



Head luteous, shining. Antennae ferruginous or black. Thorax 

 aeneous, covered with golden down. Scutellum and its spines tawny. 

 Wings whitish ; veins tawny. Halteres tawny, with apple-green knobs. 

 Abdomen green, with a very broad dorsal black stripe which is contracted 

 on the hind border of each segment. Legs tawny. 



Rare. In tbe British Museum. (E.) 



11. hydrodromia, Mg. zw. iii. 146. 15 (1822); Mq. Nigra, 

 alis limpidis ad costam fulvis, abdominis maculis 6 ventreque flavis, tibiis 

 piceis basi fulvis, tarsi fulvis apice piceis. Long. 4 ; alar. 9 lin. 



Black, thickly clothed with tawny down. Wings colourless, tawny 

 along the fore border till near the tips ; veins and halteres tawny. Ab- 

 domen adorned on each side with three somewhat triangular yellow spots, 

 which successively decrease in size from the base ; underside yellow. Ti- 

 biae piceous, tawny towards the base ; tarsi tawny, with piceous tips. 



Bare. In Mr. Stephens's collection. (E.) 



