d14 On the Pangonine of the Family Tabanide. 
seems very similar; but Wiedemann’s rather vague descrip- 
tion of the wings of his species makes it doubtful whether 
the two species are identical ; it is also very similar to C. m- 
trudens, Will., but he makes no mention of the small round 
clear spot in the centre of the first submargimal cell seen 
in C. oculatus; it must therefore remain for the present 
bracketed with the two above-mentioned species. 
The following is an exact description of the wings :— 
Brown, with one larger and three smaller clear spots; the 
larger one consists of the apical half of the two basal cells 
and of the anal cell with the exception of its extreme apex ; 
the anal angle is subhyaline; the three other spots are thus 
situated—one round spot in the centre of the first submar- 
ginal cell, oue in the second posterior cell extending into the 
third, and a triangular one in the fifth posterior cell; these 
last two become subhyaline on reaching the hind border. 
Chrysops brasiliensis, 3, Sp. n. 
Length 9 millim. 
Type (male), Amazons, 66. 53 (Bates); type (female), Rio 
Tapayos, Brazil, 53. 27 (Bates) ; one female from Para, 49. 2 
(Bates) ; one female from the Amazons, 66. 53 (Bates). 
Several of these specimens were labelled frontalis, Macq., 
by Walker incorrectly. 
Brown. Abdomen with a small yellow-haired triangular 
spot in the centre of the second and third segments, and 
with yellow bands on the posterior borders of the fourth, 
fifth, and sixth segments. 
Face and tubercles yellow. The callosity on the forehead 
yellow, with the posterior border black, the forehead black ; 
between the callosity and the vertex is a band of yellow 
tomentum, divided in the middle. Antenne yellow, the third 
joint darker ; the first joint is slightly incrassated and a 
little longer than the second. Thorax brown, with indistinct 
stripes ; the sides of the breast brown, with a yellow stripe. 
Seutellum brown. Abdomen brown, with an indistinct small 
pale yellow spot on each side of the first segment and a larger 
one on the second, and a triangular bright yellow-haired spot 
on the centre of the posterior borders of the second and third 
segments ; there is a trace of a yellow band on the posterior 
border of the third segment, which becomes distinct on the 
three following ones. Underside of abdomen brown. Legs 
brown, the anterior and middle femora almost wholly 
yellowish, the posterior femora only so at their apex; the 
anterior and middle tibiz likewise yellowish, and the tarsi 
