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. arcuata, Mcq. D. ii. 573. 4 (1835) ; Hal. Nigra, sciitelli seiis 

 bis quatemis, vena cuhitali suharcuata, tibiis tarsisqueferruginosis. Long. 

 1-1 i ; 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 between the subcostal and the citbital, the latter 

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

 vein parted by half again its length from the pra?brachial transverse 

 vein. Halteres dusky-red. Fore coxa, tibice at each end, and tarsi red- 

 dish-broicn. 



Common. (E. S, I.) 



5. geniculata, Mcq. ii. 572. 3 (1835) ; Hal. Nigra, s'cuteUi sells 

 bis ternis, alis iiifuscatis, halter ib us fiiscis, 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. 



Eare. In Mr. Halidaj's collection. (E. I.) 



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

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

 clavato-comj)7'essis. Long, f-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. TFings rarely hyaline, 

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

 hairs ; radial ending neai'er to the cubital than to the subcostal ; discal 

 transverse vein generally jjarted by half again its length from the pra^- 

 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 tibice 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, capite pedibusque rufis, tarsis posticis nigr is. Long. 1-1 i; alar. 

 2i-2f lin. 



Black. Head taicny-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. AN'ings almost hyaline ; veins 

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

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

 its length from the prajbrachial transverse. Halteres whitish. Legs 

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



