LASIOPTICUS. — SYUPIIUS. 69 



the colours more distinct in $ tlian in cJ . Occipihil margin ash- 

 grey with rather dense white pubescence, which is yellow isli behind 

 vertex. Thorax aeneous-bhick witli brownish-grey pubescence on 

 dorsum, white on pleurae and more yellowish on the broad con- 

 spicuous yellow side margins, which reach tlie yt^Howish trans- 

 lucent scutellum ; latter darker in centre and with black pubescence 

 except for some whitish pubescence at base. Abdomen shining 

 black with three pairs oF broad subequal orange spots, the 

 1st pair lying across middle of 2nd segment, well separated, oval 

 and continned broadly over anterior part of side margins ; 2nd 

 and 3rd pairs, on 3rd and 4th segments, rather less widely 

 separated than 1st pair, a])proximately oval, slightly curved, with 

 outer ends truncate, parallel to but quite clear of side margins ; 

 4th segment with narrow orange hind margin ; 5th black with 

 narrow side and hind margins. Genitalia orange, marked with 

 black ; venter yellow with black transverse marks. Pubescence of 

 abdomen practically following ground-colour. Tjegx orange- 

 yellow; coxfe, anterior femora for nearly basal half, hind pair for 

 more than basal half, black; upper side of tarsi brownish. Whufn 

 colourless, stigma pale yellow; squamsD whitish with white 

 pubescence. 



Length, 11 mm. 



Described from a S from Allahabad, 12. i. 1906 {Ilowldi), and 

 a 2 from Peshawur, 18. iii.1913, "on rye grass" (Ilowlett) : 

 Ferozepore, v. 1908, c^ ?; Abu, cf $ (both Nurxe). 



Types sent to the British Museum by Mr. T. B. Fletcher. 



Genus SYRPHUS, Fahr. 



Syrphiis, Fabricius, Syst. ICiit. p. 7(i2 (177o). 

 Scfeva, Fabrifiu3, Syst. Antl. p. lU8 (ISOo). 

 Psyloijaster, Lioy, Atti Isli. Vfiieto, (:{) ix, p. 7oo (1801). 

 Episirophe, Walker, Ins. Sauiid., Dipt, i, p. --'42 (1852). 



Genotype, Mvscn rihesii, L. ; by universal acceptance *'. 



Head as broad as or rather broader than thorax ; eyes contiguous 

 in (S , well separated in $ , generally bare, but varying up to 

 densely pubescent ; frons prominent; face slightly hollowed below 

 antenna), a moderately large central knob and the mouth-border 

 produced ; face wholly yellow or yellow with a median black 

 stripe; antenna; of moderate and normal Syrphine type, 3rd joint 

 oval, arista nearly basal, bare or slightly pubescent. Thorax 

 subquadratt! or slightly wider just bin'ond middle, black or asneous, 

 or at most slightly y(41owish towards sides, but without con- 

 spicuous markings on pleura;; scutellum normally yellow, with 



* Coquillett's siiKgestion to apply the name Syrphus to Lcucozona lucorum 

 is unwarrivntfiblo ; tlie apecii-s ribcsii lins always been accepted as typical of 

 this genus, and I decline to troiilile about, any prcsiuned claim of any other 

 grfuqi of species U> the nauic Si/rjihiis. 



