586 LIST OF DIPTERA. 



than their fore borders : legs tawny, clothed with short tawny hairs ; 

 thighs and hind legs mostly brown : wings slightly gray ; wing- 

 ribs and poisers tawny ; veins black, tawny at the base. Length of 

 the body 5 lines ; of the wings 9 lines. 



a. Van Dieman's Land. Presented by the Rev. Augustus Beaufort. 



Syrphus orientalis, Wied. Anal. Ent. 36, 58. Auss. Zweif. ii. 139, 



40. 

 a. Madras. Presented by Walter Elliot, Esq. 



Syrphus guttatus, Meig. Dipt. Hi. 322, 71. Scaeva guttata, Fall. 

 Syrph. 44, 16. Zett. Ins. Lapp. 604, 22. 



a. ? 



b. St. Martin's Falls, Albany River, Hudson's Bay. Presented by 



G. Barnston, Esq. 



Syrphus 6-quadratus, Barnston s MSS., mas. et fem. Nigro-ceneus 

 aut nigro-cyaneus, fronte fulvo, scutello nonnunquam flavo, abdo- 

 minis fasciis tribus latis interrupts duabusque angustis integris 

 fulvis aut flavis, pedibus fulvis, femoribus basi tarsisque apice 

 fuscis, pedibus posticis nigro-fuscis, alis subcinereis. 



Body brassy black : head hoary and clothed with short tawny 

 hairs behind, beset with black hairs on the crown, tawny in front : 

 eyes red : mouth black : feelers pitchy : scutcheon yellow : abdo- 

 men deep black, adorned with three broad yellow interrupted bands, 

 and at the tip with two very narrow entire bands : on the underside 

 the bands are not broken : legs tawny ; thighs towards the base and 

 feet towards the tips brown ; hind legs dark brown : wings slightly 

 gray; wing-ribs tawny ; veins black; poisers yellow. Length of the 

 body 3^ — 4 lines ; of the wings 7 — 8 lines. 



Var. a. Body bluish black. 



Var. 0. Bands of the abdomen tawny. 



Var. y. Scutcheon brassy. 



a. St. Martin's Falls, Albany River, Hudson's Bay. Presented by 



G. Barnston, Esq. 

 a. Nova Scotia. From Lieut. Redman's collection. 



Syrphus tibicen, Wied. Auss. Zweif. ii. 127, 19. Macq. Dipt. 



Exot. ii. 102, 26, pi 17, /. 3. Walk. Linn. Trans, xvii. 346, 



40. 

 a. Brazil. Presented by the Entomological Club. 



