ORTHOCHILE. 179 



hind femora, tip of hind tibia more largely, and the hind tarsi entirely, 

 blackish-brown ; anterior metatarsi yellowish. 



Bare. In Messrs. Dale's and Walker's collections. (E.) 



51. parvilamellatus, Mq. emp. 66. 16 (1827). Atro-virens, 

 tibiis et tarsorum basi flavidis ; Mas. lamellis linearibus jlavidis, hy- 

 postomate fusco-Jiavescente ; Fcem. hypostomate cano. Long, li ; alar. 



3 lin. 



Blackish-green. Front with an ochreous shade. Face in male dusky, 

 with dull ochreous gloss ; in female hoary. Antenna? long, third joint 

 obtuse or truncated ; arista almost glabrous, penultimate joint as long as 

 the last in male, half as long in female. Wings dark hyaline. Lamella 

 dingy yellow, pubescent, nearly linear, with a tooth at the outer apical 

 angle. Coxae and femora black -brown; trochanters and tip of an- 

 terior femora, and the tibiae yellowish ; tarsi dusky, anterior metatarsi 

 (or more) and base of the hind one (more obscurely) yellowish. 



Not uncommon. (E.) 



52. alutifer, (Hal. MSS.) jEneo-mridis, capite albido, pedibus 

 flavis, tarsis apice posticis totis fuscis ; Mas. lamellis linearibus Jlavidis, 



tarsi antici articulis binis primis elongatis, reliquis compressis atris, ultimo 

 apice albo. Long. 1 ; alar. 3 lin. 



Bright metallic-green. Front whitish. Face silvery-white in male, 

 dull white in female. Palpi ferruginous. Antenna? short, black, third 

 joint triangular. Wings dark hyaline; subapical and cubital veins 

 converging. Hypopygium closely applied to the belly, so that the 

 appendages are scarcely visible ; lamella nearly linear, ferruginous. 

 Legs long and slender, yellow ; middle coxa? grey at the base ; tarsi 

 and tip of hind tibia dusky ; first two joints of the fore tarsus and the 

 middle metatarsus yellow. In the male, those two joints are each nearly 

 half as long as the tibia; the following joints together not longer than 

 one of them, compressed, the third and fourth feathered above, deep 

 black, the last white with black base. Allied to Syb. crinipes, Stg. 

 (D. pectinifer, Zlr.), and to D. crinicauda, Ztt. 



Found near Harrietsham, in Kent. In Mr. Stephens' s collec- 

 tion. (E.) 



Genus IV. ORTHOCHILE. 



ORTHOCHILE, LI. gen. iv. 289 (1809); Mg.; Mq. ; Stg.; Lw. 



Antenna articulo tertio apice attenuato, arista dorsali subsinuata. Pro- 

 boscis capite longior, acuminata. Hypopygium marts extricatum, la- 

 mellis geminis externis patulis. 



Eyes separated, very faintly pubescent ; face nearly of equal breadth 

 in both sexes ; cilia of the lower orbit whitish. Proboscis longer than 

 the Jiead, extending downwards as far as the end of the fore coxae, 



