LIMOSINA. 179 



Thorax with dull blue reflections. Wings obscure hyaline ; base of the 

 costal vein and legs simply pubescent. Abdomen with a glaucous tinge. 

 Not rare. (E. I.) 



4. arcnata, Mcq. D. ii. 572. 4 (1835) ; Hal. Nigra, scutelli setis 

 bis quaternis, vena cubitali subarcuata, tibiis tarsisqueferruginosis. Long. 

 1-H; alar. 2-3 lin. 



Like L. limosa ; face less elevated. Wings obscure hyaline or brown- 

 ish ; veins rust-brown ; costal bristly at the base ; radial extending over 

 two-thirds of the interval betioeen the subcostal and the cubital, the latter 

 recurved, and terminating before the tip of the wing ; discal transverse 

 vein parted by half again its length from the praebrachial transverse 

 vein. Halteres dusky-red. Fore coxae, tibia at each end, and tarsi red- 

 dish-brown. 



Common. (E. S. I.) 



5. geniculata, Mcq. ii. 572. 3 (1835) ; Hal. Nigra, scutelli setis 

 bis ternis, alis infuscatis, halteribus fuscis, coxis anticis genubus tarsisque 

 ferruginosis. Long. 1 ; alar. 2 lin. 



Resembles L. arcuata, but the wings are as in L. limosa. Scutellum 

 with two bristles on each side. 



Bare. In Mr. Haliday's collection. (E. I.) 



6. crassimana, Hal. E. M. iii. 328. 6 (1836). stercoraria, Desv. 

 Nigra, alis infumatis, halteribus fuscis, tarsis crassis ; Mas, tibiis anticis 

 clavato-compressis. Long. | 1 ; alar. 2-2-| lin. 



Black. Front sometimes with a narrow reddish margin. Arista 

 finely pubescent. Scutellum scarcely so long as the metathorax, with 

 but four bristles, as in the nine following species. Wings rarely hyaline, 

 generally dusky ; veins darker; base of the costal ciliate with short 

 hairs ; radial ending nearer to the cubital than to the subcostal ; discal 

 transverse vein generally parted by half again its length from the prse- 

 brachial transverse vein. Halteres brown or blackish. Legs more pu- 

 bescent than in any of the following species; bristles of the middle 

 tibia3 scattered; tarsi thick. Male. Fore tibia clavate, furrowed ; fore 

 tarsi dilated ; hind tarsi with two dilated joints. 



Abundant. (E. S. I.) 



7. ochripes, Meig. Zw. vi. 209. 29 (1830) ; Mcq. ; Hal. ; Zett. 

 Nigra, capita pedibusque rufs, tarsis posticis nigris. Long. 1-1 i ; alar. 

 2|-2f lin. 



Black. Head tawny-red, a dot on the crown, and the occiput black. 

 Antennae sometimes red at the base. Arista very delicately pubescent. 

 Scutellum shorter than the metathorax. Wings almost hyaline ; veins 

 pale; base of the costal pubescent; radial ending half-way between 

 the subcostal and the cubital ; discal transverse parted by nearly twice 

 its length from the prabrachial transverse. Halteres whitish. Legs 

 pubescent, tawny ; hind tarsi, generally also fore tarsi and tips of fore 



