248 DIPTERA. 
at a short distance before the wing’s tip; curvature of the fourth vein angular, but without appendage ; 
posterior cross-vein beyond the middle between the small cross-vein and the curvature of the fourth vein. 
1. Melaleuca spectabilis, sp.n.,9. (Tab. VI. figg. 3; 3a, head.) 
Grey ; frontal band, antenna, palpi, stripes on the thorax, hind borders of the abdominal segments, and legs, 
black; basal joints of the antenne rufous. 
Length 11 millim. 
Head whitish, without darker reflections; front broader than the eyes; frontal band as broad as the lateral 
portions ; close to the frontal bristles three orbital bristles. Antenne black, the basal joints rufous ; 
second joint prominent, densely haired, and with a rather long bristle ; third joint three times as long as 
the second ; arista thickened in its proximal half, long-plumose. Proboscis black, with the terminal lips 
rufous. Thorax and scutellum light grey; thoracic dorsum with four black stripes—the median ones 
linear and only conspicuous before the transverse suture, the lateral stripes much broader, in the form of 
four spots, two before and two behind the suture; front margin of the scutellum black. Abdomen light 
cinereous, the second segment slightly tinted with yellow; first segment black, the following ones 
with well-defined black hind borders, which on the second and third segments are trigonally enlarged in 
the middle ; the anus shows a tendency to become rufous; the macrochetz on the hind margins of the 
second and third segments are decumbent, and therefore less conspicuous. Hind tibie with bristles of 
unequal length ; foot-claws and pulvilli short. Tegule white. Wings grey ; small cross-vein on the 
middle of the discal cell ; apical cross-vein slightly concave ; posterior cross-vein oblique and curved. 
Hab. Mexico, Xucumanatlan in Guerrero 7000 feet (H. H. Smith). 
A single female specimen. 
EUANTHA. 
Euantha, Van der Wulp, Tijdschr. voor Entom. xxviii. p. 198 (1885). 
Body slender. Front arcuate, as broad as the eyes, in the male narrowed towards the vertex; fgce perpendi- 
cular, not carinated, but convex between the antennal grooves; vibrissal swellings parallel; cheeks 
narrow, their lower portion, however, nearly equalling half the longitudinal diameter of the eyes; vibrissz 
at some distance above the oral margin, which is not prominent; beneath the vibrisse a row of shorter 
bristles; eyes bare. Antenne short, inserted beneath a line drawn through the centre of the eyes; third 
joint longer than the second; arista long-plumose. Proboscis rather short, with well-developed terminal 
lips; palpi small, cylindrical. Abdomen cylindrical, with discal and marginal macrochete. Legs elongate 
and robust ; hind tibie slightly curved and attenuate at the base ; tarsi somewhat compressed ; foot-claws 
and pulvilli short in both sexes. Tegule large. Wings longer than the abdomen, variegated with yellow 
and brown; curvature of the fourth vein angular, usually with a short appendage; apical cell broadly 
opened before the wing’s tip ; posterior cross-vein beyond the middle between the small cross-vein and the 
curvature of the fourth vein. 
The species of this genus are very elegant flies. In the collections before me I find 
thirteen specimens belonging to it, none of which quite agree inter se, especially as 
regards the extension and shape of the markings on the wings. I believe these 
examples belong to two species: one (Dexia dives, Wiedem.) is yellower in colour and 
has in the male the sides of the abdomen largely yellowish-rufous, and the orbital 
bristles absent in both sexes; the other (Euantha pulchra), of which only female 
examples have been captured, is more obscure, and has the light parts of the body 
whitish-grey in colour. 
Dexia aucta, Wiedem., and D. eques, Wiedem., both from Brazil, may perhaps belong 
to the genus Luantha. 
