Jan., 1914.] Tabanus Longus, Fuhmlus and Sagax. 
227 
1. Female. Front and face yellowish pollinose, the latter 
with numerous yellow hairs, frontal callosity shining dark brown 
with an unconnected elongate shining spot well above it, antenna 
yellow except the annulate portion of the third segment which is 
black; basal portion of the third segment with a well marked 
anlge above. Front narrow, sides nearly parallel. Thorax 
yellowish gray pollinose concealing the ground color, wing hyaline, 
costal border dilute yellowish as far as the stigma; legs in large 
part yellowish, all the femora dark nearly to apex, apical part of 
each front tibia and whole of each front tarsus dark, extreme 
apex of each of the other tibiae slightly brownish, all but the base 
of each of the other tari brown. The legs may vary however and 
in some specimens before me are almost entirely yellowish, other 
specimens are intermediate in this respect. Abdomen dark 
brown and yellow or black and yellow, middorsal stripe well 
marked, widened on the posterior margin of each segment, a row 
of spots on either side, each spot well defined and more or less 
surrounded by dark brown or black. Length 13-16 mm. Speci¬ 
mens from District of Columbia, Kentucky, North Carolina and 
Tennessee. This appears to be the form that Osten Sacken 
considered as fulvulus in his Prodrome. 
2. Female. This form differs from the above mainly in the 
greater intensity of color, the yellow is golden and the dark is 
nearly black. On the abdomen the row of spots on either side 
of the middorsal stripe takes more or less the form of a zigzag 
stripe on account of each spot reaching the hind border of its 
respective segment. Length 13-15 mm. Specimens from St. 
Simon’s Island, Georgia and from Raleigh, North Carolina. 
3. Female. Colors paler than in either of the two forms 
given above, and the size is less. Specimens are decidedly gray 
in general appearance, the lateral rows of abdominal spots are 
small and distinct and surrounded by light brown, while the 
frontal callosity instead of being nearly black is a sort of faded 
brown. Length about 12 mm. Specimens taken at New Roads 
Louisiana. At the time specimens were taken it was the only 
form observed and it appeared to be plentiful. Numerous exam¬ 
ples were procured. 
4. Female. Size about the same as number 3, altho some 
specimens are smaller and more slender. The pale legs and en¬ 
tirely yellow antennae are most characteristic for this form. The 
coloration of the body in general is something like specimens of 
number 1. Length 10-13 mm. More than a dozen specimens 
from various localities in Louisiana and Georgia. 
Tabanus longus Osten Sacken. Middorsal abdominal stripe 
very narrow and abbreviated behind in most specimens, spots in 
the lateral rows small but distinct. Front in the female wider 
than in the same sex of fulvulus, widest at vertex and gradually 
