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SPH ERIN A.—RHINOPHORA. 205 
SPHARINA, gen. nov.* 
Head large, broader than the thorax ; front not prominent; face perpendicular; facial ridges without bristles ; 
eyes bare, descending nearly to the inferior part of the head. Antenne as long as the face; arista bare. 
Proboscis exserted; palpi small, cylindrical, slightly thickened towards the tip. Abdomen broadly ovate, 
nearly hemispherical, shorter than the thorax; macrochete short, only on the hind margins of the 
segments. Legs with weak bristles. Wings longer than the abdomen, without a costal spine; apical 
cell opened, ending in the tip of the wing; posterior cross-vein in the middle between the small cross-vein 
and the curvature of the fourth vein, this curvature somewhat rounded. 
Spherina is allied to the European genus Clytia, but differs from it by the long 
antenne, the total absence of yellow or rufous coloration on the abdomen, and the 
insertion of the posterior cross-vein in the middle of the apical cell. 
1. Spherina nitidula, sp.n.,¢. (Tab. IV. figg. 16; 16a, head in profile.) 
Shining black, the thorax with a whitish humeral spot on each side; palpi rufous. 
Length 3 millim. 
Front as broad as the eyes, black, opaque; frontal bristles short, not descending beneath the root of the 
antenne ; vibrisse surmounted by two or three shorter bristles. Antenne black; second joint with some 
short bristles; third joint four times as long as the second; arista thickened to the proximal half. 
Terminal lips of the proboscis and palpi pale rufous. Thorax before the transverse suture with some 
grey tomentum, on the shoulders more whitish ; two black stripes are not conspicuous. Abdomen scarcely 
with any grey reflection on the front borders of the segments. Macrochetz of the thorax and abdomen 
short and weak. Legs black, the femora rather thick; hind tibie outwardly with some short bristles ; 
foot-claws and pulvilli very short. Tegule yellowish-white. Wings greyish-hyaline, small cross-vein 
under the end of the auxiliary vein, and distinctly before the middle of the discal cell; apical cross-vein a 
little concave near its end; posterior cross-vein straight. 
Hab. Mexico, Teapa in Tabasco (H. H. Smith). 
A single female specimen. 
RHINOPHORA. 
Rhinophora, Robineau-Desvoidy, Essai sur les Myodaires, p. 258 (18380). 
The following species from Mexico, like those from Europe described by Schiner 
(Fauna Austriaca, Dipt. i. p. 545), seems to possess most of the essential characters of 
the genus Rhinophora. In the partly infuscated wings, in the neuration (a closed and 
. long-petiolated apical cell), and in the presence of a row of bristles on the cheeks close 
to the margin of the eye it especially agrees with Rhinophora ; it differs, however, from 
the European species (2. atramentaria, R. melania, &c.) by the much longer antenne 
and the bare arista. 
1. Rhinophora levigata, sp.n.,¢. (Tab. IV. figg. 17, wing; 17a, head in 
profile.) 
Shining black; face and cheeks whitish; palpi rufous; arista thickened, bare; wings infuscated along the 
costa and on the apical and posterior cross-veins. 
Length nearly 3 millim. 
* opaipa (globe). 
