OF THE TABANID^ OP THE UNITED STATES. 559 



Tabanus fuscopunctatus. 



(See ante, page 432.) 



Male. The coloring is exactly like that of the female ; the white abdominal spots very 

 small ; the toothlike projection on the third antennal joint very large. The head is larger 

 than that of the female, without being very large for a male Tabanus. The line of divi- 

 sion between the large and small facets is very distinct. Length, 20 mm. One specimen 

 from Georgia (H. K. Morrison). 



Tabanus longus. 



(See ante, page 447.) 



About fifty specimens (unfortunately all females), which I have now before me, enable 

 me to improve my description. In the second line strike out the words " and connected 

 with it." The third antennal joint in the majority of specimens is red, with the annulate 

 portion black ; in some rare specimens it is darker. In the fourth line of the description, 

 strike out the words " although obtuse." The scutellum, in some specimens, is reddish. 

 The abdomen is grayish brown rather than grayish black ; the words " reddish on the sides, 

 near the base," would better be struck out. On line twelve strike out the words " usually, 

 but not always." The oblique white spots come in contact with the hind margin on the first 

 segment only. The median abdominal line, as described by me, is visible only in very well 

 preserved specimens ; ordinarily, it appears as a line, interrupted at the incisures, rather 

 than as a series of triangles. The brownish tinge in the costal cell is hardly apparent in 

 most specimens, and hence the words " costal cell pale yellowish brown" are better omitted. 



Tabanus Wiedemanni. 



(See ante, page 455.) 



Of this species I had a single specimen from Floi'ida. I can compare now five other 

 specimens, three from Georgia (H. K. Morrison) and two from Cumberland Gap, Ky. (G. 

 •Dimmock). Some of these specimens are larger, about 19 mm. long ; in some the subcal- 

 lus is only partially denuded, or not denuded at all ; the specimens from Georgia show the 

 remarkably broad linear prolongation of the frontal callosity, alluded to in the description ; 

 in the specimens from Cumberland Gap it is much narrower. 



Tabanus rufus. 



(See ante, page 456.) 



3fale. Much darker in coloring than the female, and at first glance very different in 

 appearance. 



Head, in proportion, not larger than that of the female (and, in fact, smaller, as the whole 

 insect is of smaller size) ; in shape, also, it is but little different ; there is very little differ- 

 ence in the size of the facets, and the line of division between the larger facets of the cen- 

 tral portion of the eye and the smaller ones around and below, is not distinct (at least in 

 dried specimens). Thorax black, with some yellowish pile, especially dense on the pleurae. 

 Abdomen black in the middle, dark brownish I'ed on the sides, the latter color encroaching 

 more or less on the former ; the segments on each side are beset with some appressed 

 minute fulvous hairs, forming narrow fringes on the red portion of the posterior margins ; 



