266 Mr. F. Smith on some new Species 
Female. Length 6 lines. Black; the anterior margin of the clypeus 
and the tips of the mandibles rufo-piceous; the six apical joints of the 
antenne pale ferruginous; the clypeus and face below the antennz 
with a thin silvery pile. Thorax: the prothorax beneath, the sides, the 
metathorax, and scutellum with a changeable glittering silvery pile; 
the cox also pilose. The wings hyaline, the nervures dark towards the 
base and pale testaceous towards their apex; a narrow brown fascia 
crosses the superior wings at the apex of the externo-medial cell, and 
a second paler fascia crosses at the base of the marginal cell. Abdomen 
subpetiolate, ferruginous, with the petiole black. 
Hab. Ega (Brazil). In the National Collection. 
8. Agenia polistifornus. 
A. luteo-rufa, vertice, mesothorace et metathorace supra nigro-zeneis; alis 
subhyalinis, margine antico primi paris fusco. 
Female. Length 53 lines. Reddish clay-colour; the face covered 
with a dense bright golden pile; the tips of the mandibles rufo-piceous, 
the flagellum fuscous above, the vertex nigro-gneous. Thorax thinly 
covered with changeable golden pile; the meso- and metathorax above 
nigro-eneous ; wings subhyaline, with a fuscous stain traversing the 
anterior margin of the superior pair; the apical joints of the tarsi 
fuscous. Abdomen subpetiolate. 
The male is smaller and more slender, but similarly coloured to the 
female. 
Hab. Ega (Brazil). In the National Collection. 
9. Agenia annulata. 
A. nigra, clypeo, margine prothoracis postica coxisque albis; pedibus 
abdomineque albo annulatis; alis hyalinis, macula fusca notatis. 
Male. Length 3? lines. Black, with a thin silky cinereous pile; the 
sides of the thorax silvery ; the clypeus, mandibles, palpi, and the scape 
in front white; tips of the mandibles rufo-piceous. The posterior 
margin of the prothorax, the coxre, anterior tibize in front, and the 
basal joints of the anterior tarsi white; the intermediate and posterior 
tibie annulated with white, the intermediate pair have also a white 
hue behind at their apex; all the calcaria white; wings hyaline, with 
a fuscous cloud occupying the marginal and the second and third sub- 
marginal cells. The abdomen with a white ring at the base of the 
second segment; the apical segment white. 
Hab. St. Paul (Brazil). In the National Collection. 
10. Agenia viridis. 
A. lete viridis, antennis, tibiis tarsisque fuscis; femoribus ferrugineis. 
Female. Length 4 lines. Bright green, the clypeus covered with 
silvery pubescence ; the scape with a yellow spot in front; the flagellum 
fuscous, with the basal joints fulvous beneath, Thorax: the scutellum 
