CALLIPHORA. 295 
perhaps best placed in the genus Calliphora, more especially as it seems to be allied to 
C. semiatra, Schiner, and C. prepes, Gigl.-Tos. 
Giglio-Tos has described it in a very recognizable manner, but the male sex only was 
known to him. In the female the front is as broad as the eyes; the frontal band is broad 
and blackish ; and the facets of the eyes are allof minute size. In both sexes the hind 
tibie are slightly carinated on their outer side, and fringed with short bristly hairs. 
C. prescia closely resembles Onesia lucilioides (see p. 288), but the colour is less bright 
metallic, the antenne are longer, the arista is plumose to the tip, and the abdomen is 
without macrochete. 
3. Calliphora semiatra. (Tab. VII. fig. 14, head in profile.) 
Calliphora semiatra, Schiner, Reise der Novara, Dipt. p. 308. 47+; v. Roder, Stett. ent. Zeit. 1886, 
p- 269°; Giglio-Tos, Mem. R. Accad. Scienze di Torino, ser. 2, xlv. (sep.) p. 1°. 
Hab. Mexico ?, Ciudad in Durango (Forrer), Omilteme 8000 feet and Sierra de las 
Aguas Escondidas 9500 feet, both in Guerrero (H. H. Smith); Costa Rica, Volcan de 
Irazu 6000 to 8000 feet (Aogers).—Co tomBia }. 
Three male and eight female specimens, varying from 8-11 millim. in length. The 
front is not at all prominent: in the female as broad as the eyes, with parallel lateral 
borders; in the male in the form of a small triangle, drawn out upwards in a linear 
. prolongation between the eyes. On the facial ridges there is a row of short bristly 
hairs. The small cross-vein is very oblique, under the middle of the mediastinal cell 
and on the middle of the discal cell; the curvature of the fourth vein forms a rather 
acute angle ; the apical cross-vein is incurved at its base, and for the rest straight, the 
posterior cross-vein undulate. 
4, Calliphora melanaria, sp.n.¢. (Lab.VII. figg. 15, g ; 154, head in profile.) 
Deep black, the abdomen bluish-black; thorax anteriorly with some grey tomentum; head yellowish; 
antenne and palpi rufous; base of the wings blackish-brown. 
Length 10°5-12°5 millim. 
Front slightly prominent, trigonal, the eyes scarcely separated on the vertex ; frontal band black, with grey 
reflections; face and cheeks pale yellowish-grey; lower part of the cheeks equalling one-third of the 
longitudinal diameter of the eyes; vibrissew inserted a little above the oral margin, which is somewhat 
prominent ; facial ridges bare. Antenne rufous, inserted beneath the median line of the eyes; second 
joint with a rather long bristle ; third joint three times as long as the second ; arista black, thickened at 
the base, sparsely plumose, but not to the tip. Proboscis shining black; palpi rufous, slender, slightly 
thicker towards the tip. Thorax black, anteriorly with some cinereous tomentum and indistinct black 
lines. Scutellum black. Abdomen unicolorous, shining black ; third and anal segments thickly clothed 
with black hairs. Legs black; hind tibiz fringed outwardly with bristly hairs of unequal length; foot- 
claws and pulvilli elongate (3). Tegule dark brown. Wings brownish-hyaline, blackish-brown at the 
base, this dark coloration reaching to beyond the humeral cross-vein and covering the inferior basal cells ; 
the veins, when seen upon a dark surface, appear rufous-brown; small cross-vein a little beyond the 
auxiliary vein and on the middle of the discal cell; curvature of the fourth vein rectangular; apical 
cross-vein slightly concave ; posterior cross-vein undulate. 
_ Hab. Mexico, Amula in Guerrero 6000 feet (£7. A. Simith). 
Three male spec’mens. ‘This species is allied to C. semiatra, Schin.; but differs 
