OXYCERA. 19 



12. hydroleon, L. s. n. ii. 980. 5 (1767); Dg. ; Fb.; Shr. ; 

 Gm. ; Gf. ; Pz. fn. ! viii. 21 ; Mg. ; LI. ; Fin. ; Mq. ; Ztt.angulata, 

 Pz. fn. ! viii. 19 ; Mq. Nigra, antennis uigris basi fulvis, scutelli mar- 

 gins postico fulvo, alis limpidis, abdomine fulvo vitta dorsali nigra, pe- 

 dibus fulvis. Long. 5 ; alar. 9 liri. 



Scapula in front of the head ferruginous ; sides of the peristoma 

 yellow. Mouth black. Antennae black ; first and second joints tawny. 

 Thorax clothed above with tawny hairs, beneath with white hairs ; 

 spines and hind border of the scutellum tawny. Wings colourless ; veins, 

 alulae and halteres yellow. Abdomen tawny, icith a broad black dorsal 

 stripe which is contracted towards the hind border of each segment, and 

 ends before the tip. Legs tawny. Male. Head black, clothed in front 

 with white hairs. Thorax black. Fern. Head luteous. Thorax aeneous. 



Very rare. In the British Museum. (E.) 



13. viridula, Fb. sp. i. ii. 418. 8 (1781); Shr. ; Gm. ; Pz. fn. ! 

 viii. 18; LI.; Fin.; Mg.; Mq. ; Ztt.- canina, Pz. ; fn. ! viii. 23. Mg. 

 marginata, Fb. dentata, Mg. Nigra, alis albis basi et ad costam sub- 

 fulvis, abdomine viridi nigro-vittato, pedibus fulvis. Long. 2-^3 ; 

 alar. 5-6 lin. 



Black, clothed with tawny hairs. Scutellum armed with 2 tawny 

 spines. Wings white, with a slight tawny tinge at the base and along 

 the fore border ; veins tawny. Halteres tawny, with green knobs. Ab- 

 domen green, with a black dorsal stripe which irregularly widens from 

 the base to the tip, and varies in breadth. Legs tawny. Male. Head 

 much larger than that of the female. Fern. Stripe of the abdomen 

 much broader than that of the male, sometimes occupying the whole 

 surface. 



Generally distributed. (E. S. I.) 



14. subvittata, Mg. zw. ! iii. 150. 19. pi. 26. f. 15 (1822). 

 Nigra, alis albis basi et ad costam subfulvis, abdomine viridi nigro-ma- 

 culato, pedibus fulvis. Long. 3-i- ; alar. 7 lin. 



Black. Antennae black or ferruginous. Thorax clothed with tawny 

 hairs; spines of the scutellum tawny. Wings white with a slight tawny 

 tinge at the base and along the fore border ; veins tawny. Halteres 

 tawny, with green knobs. Abdomen green, with a narrow, much inter- 

 rupted black stripe which is widened into two short bands towards the tip. 

 Legs tawny. 



Rare. In the British Museum. (E.) 



Genus IV. OXYCERA. 



OXYCERA, Mg. zw. iii. (1822); Mq.; Ct.; Ztt.; Stg.; Lw. Musca p., 

 L.;Spl. ; Dnv. Stratiomys p., Fb. ; Gm. ; Prylsr. ; Pz. ; Fin. 



D 2 



