OKTHOCHILE. 179 



hind femora, tip of hind VibicB more largely, and the liiud tarsi eutu'ely, 

 blackish-brown ; anterior metatarsi yelloicish. 



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



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



tibiis et tarsorum hasi Jlavidis ; Mas. lamellis linearibm flavidis, hy- 

 postomatefusco-Jiavescente; Fcem. hypostomate cano. Long. \\; alar. 

 3 lin. 



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

 with dull oc/<yro?<.s gloss ; in female hoary. Anteniipe long, third joint 

 obtuse or ti'uncated ; 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. Coxfe and femora black -brown ; trochanters and tip of an- 

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

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



Not uncommon. (E.) . 



52. alutifer, (Hal. MSS.) JEneo-viridis, capite albido, pedibus 

 flavis, tar sis apice posticis totis fiiscis ; Mas. lamellis linearibus flavidis, 



tarsi antici articulis binis primis elongafis, reliquis comp)'essis atris, ultimo 

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



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

 dull white in female. Palpi ferruginous. Antennas short, black, third 

 joint triangular. Wings dark hyaline ; subapical and cubital veins 

 converging. Ii_y})opygium closely applied to the belly, so that the 

 appendages are scarcely visible ; lamella; nearly linear, ferruginous. 

 Legs long and slender, yelloio ; middle coxae grey at the base ; tarsi 

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

 middle metatarsus yelloio. 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 aljove, deeji 

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

 (Z). 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. Hypopygimn maris 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 

 llie head, extending downwards as far as the end of the fore coxse, 



