IjOI'lSlAiNA ClKCCI.AU No. li. . 



the wings readily distinguishes the species. Takr,, at Logansport, 

 August 19 (Garrett). 



a b 



. is. Spotted horsefly (Tabanua mmxtuH): a male- b female- en 

 two diameters. 



Mr. Garrett says this species seemed to be very scarce in the 

 vicinity of Logansport, for special attention 'had been given to all 

 horseflies noticed while traveling through the country, and only four 

 specimens of this particular species had been captured. Three of 

 these were captured at the same place, in the edge of an old field 

 grown up with young pine trees. Two of the three were captured on 

 August 19 and the other one on September 6. The fourth was cap 

 tured near Mansfield on September 9. 



This species was previously known from Texas, Kansas, Oklahoma 

 and Ohio. It appears to be abundant in parts of Kansas and is said to 

 be a pest of considerable consequence. 



TABANUS COSTALIS Wiedemann (Green-head Horsefly). Thorax 

 yellowish, without stripes; wings hyaline with the front border yellow 

 or brown; abdomen with a distinct median stripe and a stripe, more 

 or less distinct, on either side. Length, slightly more than hah ;m 

 inch. In addition to its occurrence at Cameron, mentioned below, it 

 was taken at Robeline, May 25 (Garrett) ; Lake Charles, June 13 

 (Martin); Keachie, June 14 (Garrett); Crowley, June 17 (Martin); 



TABANUS 5-VITTATUS Wiedemann. Thorax yellowish with in 

 dications of stripes; wings hyaline with brown veins; abdomen usually 

 with three grayish stripes separated by brown si rip. -s of nearly the 

 same width. Average length about two-thirds of an inch. 



TABANUS LINEOLA Fabricius < Lined Horsefly). Thorax more 

 brownish than yellowish, showing three narrow whitish lines, which 

 are more distinct anteriorly; wings hyaline with brown veins; abdo- 

 men with a distinct median gray stripe, and on each side an irregular 

 gray stripe formed of elongate oblique spots. Same size as T .-nutaiit 



The three species just named are the common ones at Cameron, 

 where the Gulf Biologic Station ts located. Probably the first is In* 



