LIST OF DIPTERA. 631 



veins black, tawny towards the base, some of them tawny along the 

 whole length ; poisers tawny. Length of the body 6 lines ; of the 

 the wings 12 lines. 



a. Adelaide. Presented by the Entomological Club. 



Eristalis smaragdi, n . s., fern. Viridis, micans, antennis fulvis, pe- 

 dibus nigris, femoribus cyaneis, tibiis anterioribus basi fidiis, 

 alls limpidis. 



Body bright metallic green, thinly clothed with short hoary 

 hairs : head clothed with short pale hairs, white behind, in front 

 tawny and covered with a white bloom : mouth pitchy: feelers 

 tawny : eyes bronzed ; their facets veiy small : breast with a tuft of 

 white hairs on each side: abdomen obconical, as long and as broad 

 as the chest : legs black ; hips and thighs blue ; hind thighs 

 purplish blue, stout, compressed ; four front shanks tawny at the 

 base ; hind shanks curved ; claws black ; foot-cushions dull taw- 

 ny: wings colourless; wing-ribs and veins black; poisers tawny. 

 Length of the body 3 lines ; of the wings 6 lines. 



a. New Holland. Presented by J 6 Hunter, Esq. 



Eristalis chrysopygus, Wied. Zool. Mag. iii. 15, 21. Auss. Ziveif. 

 ii. 152, 1. Phytomia chrysopyga, Guerin, Belanger, Voy. Ind. 

 Orient. 510, pi. 4, /. 8. Megaspis chrysopygus, Macq. Dipt. 

 Exot. ii. 27, 1, pi. 7, /. 2. 



a. Silhet. From Mr. Sowerby's collection. 



b. Silhet. From Mr. Stainforth's collection. 



Eristalis crassus, Fabr. Syst. Antl. 232, 4. Wied. Auss. Zweif. ii. 

 153, 3. Syrphus crassus, Fabr. Ent. Syst. iv. 281, 12. S. me- 

 gacephalus, Fabr. Ent. Syst. Suppl. 561, 17. Megaspis cras- 

 sus, Macq. Dipt. Exot. ii. 28, 2, pi. 7, /. 3. 



j a. Nepaul. From the Hardwicke bequest. 



l b. North Bengal. From Miss Campbell's collection. 



; Eristalis intricarius, Fabr. Syst. Antl. 232, £ Meig. Dipt. iii. 

 391, 12. Macq. Hist. Nat. Dipt. i. 501, 1. Musca intricaria, 

 Linn. Syst. Nat. ii. 985. Faun. Suec. 1800. Gmel. Ed. Syst. 

 Nat. v. 2871, 33. Deg. Ins. vi. 59, 3, pi. 8, /. 10, 11. Steic, 

 El. ii. 265. Turt. iii. 638. M. fuscus, Harr. Ex. 42, pi. 10, 

 O. 3, /. 3. Syrphus intricarius, Fabr. Sp. Ins. ii. 426, 22. 

 Ent. Syst. iv. 281, 11. Panz. Faun. Germ. lix. 11. Fall. 

 Syrph. 23, 12. Zett. Ins. Lapp. 502, 1. S. bombyliformis. 

 Fabr. Ent. Syst. iv. 281, 13. Syst. Antl. 227, 12. Panz. 



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