DEGEERIA. 153 
curvature of the fourth vein with a blunt angle; apical cell very narrowly opened (sometimes nearly 
closed) just before the wing’s tip ; apical and posterior cross-veins straight, the apical more oblique. 
Hab. Mexico, Amula in Guerrero 6000 feet (H. H. Smith). 
Four female specimens. 
5. Degeeria nigricans, sp. n., ¢. 
Black ; face and cheeks whitish; thorax anteriorly grey, with black lines; abdominal segments with narrow 
white front margins; palpi rufous. 
Length 4 millim. 
Front cinereous, broader than the eyes ; frontal band blackish, as broad as the lateral portions; frontal bristles 
descending beneath the second antennal joint; vibrisse inserted at the oral margin; beard white. 
Antenne black, shorter than the face; second joint bristly ; third joint four or five times as long as the 
second; arista thickened to the proximal half. Thorax with whitish-grey tomentum, before the trans- 
verse suture with two black lines. Abdomen elliptical, shining black, the second and following segments 
with narrow white front margins and with marginal macrochete ; on the middle of the anal segment 
some shorter macrochete. Legs black; hind tibie with a row of bristles of unequal length. Tegule 
whitish. Wings nearly hyaline; small cross-vein a little before the middle of the discal cell; apical cell 
very narrowly opened at the wing’s tip; curvature of the fourth vein with a blunt angle; apical cross-vein 
very slightly concave; posterior cross-vein straight, in the middle between the small cross-vein and the 
curvature of the fourth vein. 
Hab. Mexico, Chilpancingo in Guerrero 4600 feet (H. H. Smith). 
A single male specimen. 
6. Degeeria magnicornis, sp. n., 3 2. | 
Black; head whitish; thorax grey, with four black stripes; abdomen with white front margins to the 
segments, without discal macrochete ; antennz very long; palpi rufous. 
Length 3°5 millim. 
Front as broad as the eyes, with parallel sides ; frontal band black, narrower than the lateral portions ; frontal 
bristles descending beneath the second antennal joint. Antenne black, as long as the head, the basal 
joints very short; arista inserted at the base of the third joint, thickened to the proximal half. Thorax 
greyish, the black stripes distinct—the intermediate stripes linear, the outer ones broader and in the form: 
of spots. Abdomen elongate-oval ( ¢ ) or ovate (2 ); second and following segments with rather narrow 
white front borders, which are interrupted by a black dorsal line ; on the anal segment the white colour 
is sometimes less conspicuous; macrochate only at the hind margins of the segments. Legs black; hind 
tibis with several bristles of unequal length; foot-claws and pulvilli short in both sexes. Tegule 
whitish. Wings hyaline, with a slight greyish tint; small cross-vein a little before the middle of the 
discal cell; curvature of the fourth vein with a blunt angle or somewhat rounded ; apical cell narrowly 
opened or nearly closed just before the wing’s tip; apical and posterior cross-veins nearly straight, the 
posterior perpendicular, in the middle between the small cross-vein and the curvature of the fourth vein. 
Hab. Mexico, Amula in Guerrero 6000 feet, Atoyac in Vera Cruz (i. H. Smith). 
Three male specimens (one of which has lost the abdomen) and one female. 
e . _ O - 
7. Degeeria compressa, sp.n., ¢ 2. (Tab. IV. figg. 9; 9a, wing.) = C2 la 
Black; head whitish-grey ; thorax anteriorly grey ; abdomen not longer than the thorax (compressed in the 
female), with whitish lateral stripes, without discal macrocheete ; palpi pale rufous. 
Length 3 millim. 
Front broader than the eyes; frontal band black, narrower than the lateral portions; frontal bristles 
descending a little beneath the root of the antenne ; facial bristles mounting to beyond half the face. 
BIOL. CENTR.-AMER., Dipt., Vol. I1., June 1890. £ 
A cr -” 
Q ; 
>) . 4 
phos hy ten a 
(hs ay tage be AL 
pte 
bee Se 
ey 
Cae 
