34 INSECTA SAUNDBERSIANA. 
rc 
stump ; scales dark gray; poisers tawny with yellow knobs. Length of 
a, ; the body 8 lines; of the wings 17 lines. 
“a Columbia. 
TaBANus apustus, Fem. 
Piceus, thoracis lateribus ferrugineis, abdomine nigro-piceo, lateribus bast 
ferrugineis, segmentorum marginibus posticis fulvis, antennis pedi- 
busque nigris, tibiis ferrugineis, alis subcinereis basi costa venarwm- 
que marginibus subfulvis. 
Body pitchy: head aboye covered with tawny bloom, excepting a 
shining, reddish-brown, middle stripe; fore part adorned with a golden 
covering ; under side clothed with pale yellow hairs; eyes dark bronze, 
parted above by a moderately broad interval; all the facets very small: 
; sucker black; lancets ferruginous; palpi dark tawny, pitchy above: 
4 feelers black ; horn of the third joint long, slightly curved : chest clothed 
with short tawny hairs, dark ferruginous on each side; breast tinged with 
gray, clothed with longer yellow hairs: abdomen pitchy-black, obconical, 
much longer than the chest, ferruginous on each side at the base; hind 
borders of the segments tawny: legs black, clothed with short black hairs ; 
shanks very dark ferruginous : wings pale gray, tawny at the base and be- 
neath the fore borders, and with a slight tawny tinge along the borders of 
the veins; wing-ribs and veins ferruginous, the latter black towards the 
tips; a slight curve with no angle nor stump near the base of the tip cross- 
vein ; scales dull dark tawny; poisers ferruginous with tawny knobs. 
Length of the body 9 lines; of the wings 18 lines. 
Columbia. 
TABANUS sIMPLEX, Fem. 
. Niger, thoracis lateribus abdomineque ferrugineis, hujus apice piceo, an- 
tennis basi fulvis, pedibus ferrugineis, femoribus anticis tarsisque 
nigris, alis subcinereis, basi costa venarumque marginibus subfulvis. 
Body black: head pitchy above, tawny in front, clothed beneath with 
whitish hairs: eyes bronze, parted by a rather broad interval on the crown ; 
all the facets very small: sucker black ; lancets ferruginous; palpi tawny : 
first and second joints of the feelers tawny; first joint black and pro- 
jecting at the tip: sides of the chest ferruginous ; breast tinged with gray, 
