268 SYUPHIDiE. 



1. bicolor, Fb. e. s. iv. 297. 71 (1792) ; LI. ; Mg. ; St. F. et Srv,; 

 Mq. ; Ztt. ; lldn. — melanochryHa, Gm. Niger, epistomate Jlavo nigro- 



fasciato, scideUi marginefulvo, alis subcincreis, abdomine rutb-fasciato, 

 pedihus fulvis hasi nigris. Long. 2^; alar. 4^ lin. 



Black. Epistoma yelloto, with a black band. Hind border of the 

 scutellum tawny. - Wings slightly grey. Halteres yellow. Abdonaen 

 with a broad red band. Legs tawny ; femora at the tips and tibise at 

 the base yellow ; femora black towards the base. 

 E-are, In the British Museum. (E.) 



2. arcuatus, Mg. zw. iii. 179. 3. pi. 27. f. 20, 21 (1823) ; St. F. 

 et Srv. ; Mq. Niger, epistomate Jiavo-albo, untomis apice ferrugine'ts, 

 scutelli marginefulvo, alis limpidis, abdomine fascia testacea arcubusqiie 

 iribns interruptis albidls, pedibus Jluvis basi nigris apice fulvis, posticis 

 fusco-cinctis. Long. 2|-; alar. 4^ lin. 



Black. Epistoma yelloicish-ivhite. Third and fourth joints of the 

 untennce ferruginous ; third piceous above. Hind border of the scu- 

 tellum tawny. Wings colomiess. Halteres yellow. Abdomen ajneous- 

 black, with one testaceous band and three arched interrupted tohitish 

 bands. Legs yellow ; femora towards the base and coxae black ; tibise 

 towards the tips and tarsi tawny ; hind tibise with brown bands ; hind 

 metatarsi brown. 



Eare. In the British Museum. (E.) 



3. obscunxs, Mgrle. ; Mg. zw. iii. 183. 12 (1822) ; Mq. ; Ct.— 

 sigillatus, Ct. ! b. e. 593. Nigro-chalybeus, epistomatis lateribus Jtavis, 

 anteunis nigris, alis limpidis, jtedibus fulvis, femoribus basi nigris. Long. 

 2i_2i; alar. 4-4 i lin. 



Chalybeous-black. Epistoma chalybeous-blue, with a yellow stripe 

 of various breadth along each side. Antennse black. Wings colourless. 

 Halteres white. Legs tawny ; femora toioards the base and coxa black ; 

 the black part occupies three-fourths of the hind femora and one- 

 third of the fore femora. Var. /3. A red spot on the disc of the 

 abdomen. 



Generally distributed. (E.) 



4. femoratus, Mgrle.; Mg. zw. iii. 184. 14 (1822). Nigro- 

 chalybeus, anteunis nigris, alis limpidis, pedibus fulvis, femoribus basi 

 nigris, tibiis posticis nigro-cinctis. Long. 2^; alar. 4 lin. 



Male and Female. Chalybeous-black. Head dingy white behind. 

 Epistoma chalybeous-blue, with a pale tawny covering on each side. 

 Anteunfe black. TFiugs colourless. Legs tawny ; femora towards the 

 base and coxoB black ; the black part occupies three-fourths of the hind 

 femora and one-third of the fore femora ; a black band round each hind 

 tibia. 



Generally distributed. (E.I.) 



