of the Family 'Tabanide. 299 
Walker and Osten Sacken species. C. approximans, 3? , 
Walker, List Dipt. pt. i. p. 198 (1848), from Florida, is not 
a Chrysops, but a specimen of Diachlorus ferrugatus, Fabr., 
and is thus classified in Osten Sacken’s Catalogue. 
C. geminatus, 2, Wiedem., Auss. zweifl. Ins. i. p. 205 (1828), excl. 
syn. Macq. ; Walker, List Dipt. pt.i. p. 200 (1848); id. pt. v. Suppl. 1, 
p. 293 (1854); Osten Sacken, Cat. Dipt. N. America (1878). See 
v. der Wulp, Wien. ent. Zeit. iii. p. 139 (1884). 
*C. niger, 2 ,Macq., Dipt. Exot. i. p. 161 (1838) ; Walker, List Dipt. pt. 1. 
p. 202 (1848); id. pt. v. Suppl. 1, p. 282 (1854); Osten Sacken, 
Mem. Boston Soc. Nat. Hist. u. p. 877 (1876); id. Cat. Dipt. N. 
Amer. (1878) ; Wulp, Tijd. v. Entom. xxiv. p. 161 (1881); Towns- 
end, Trans. Amer. Entom, Soc. xxii. p. 57 (1895). [C. earbonarius, 
é& var. B, Walker, List Dipt. i. p. 203 (1848).|—United States, 
anada. 
*C. furcatus, 9, Walker, List Dipt. 1. p. 199 (1848); Osten Sacken, 
Mem. Boston Soc. Nat. Hist. 1. p. 391 (1876); id. Cat. (1878).— 
Canada. 
*C. cincticornis, 9, Walker, List Dipt. pt. 1. p. 201 (1848).—? N. 
America. [P C.celer, 2, Osten Sacken, Mem. Boston Soc. Nat. Hist. 
ii. p. 376 (1876).—Middle States. | 
*C. merens, 9, Walker, List Dipt. pt. i. p. 201 (1848). [C. estuans, 
y. der Wulp, Tijd. v. Knt. x. p. 135, pl. iui. figs. 8, 9 (1867); Osten 
Sacken, l.c. p. 3878 (1876); id. Cat. (1878); Williston, Trans. 
Kans. Acad. x. p. 182 (1887).|—United States, Canada. 
*C. carbonarius, 9, Walker, List Dipt. pt. i. p. 203 (1848). [C. carbo- 
narius, 9, var. y, Walker, 1. c. C. niger, 2, Walker (nec Macq.), 
Ic. p. 202. C. provocans, 2, Walker, Dipt. Saund. pt. i. p. 73 
(1850). °C. ater, 9, Macq., Dipt. Exot. Suppl. 4, p. 40 (1850). 
C. fugax, 2 , Osten Sacken, 7. c. p. 875 (1876) ; id. Cat. (1878) ; Willis- 
ton, Trans. Kans. Acad. x. p. 182 (1887).|—Canada, United States. 
*C, divisus, 9, Walker, List Dipt. pt. 1. p. 204 (1848). [C. atropos, @, 
Osten Sacken, /. ¢. p. 372 (1876) ; id. Cat. (1878). ]—Florida. 
*C. evcitans, 9, Walker, Dipt. Saund. pt. i. p. 72 (1850) ; id. List Dipt. 
pt. v. Suppl. 1, p. 281 (1854) ; Osten Sacken, /. c. p. 873 (1876) ; 
id. Cat. 1878; Williston, Trans. Kans. Acad. x. p. 182 (1887).— 
Canada and Northern U. States. 
*C, scalaratus, 9, Bellardi, Ditt. Mess. i. p. 72, pl. ii. fig. 9 (1859); 
Osten Sacken, Cat. (1878).—Mexico, [? C. lateralis, Wiedem., 
Auss. zweifl. Ins. i. p. 209 (1828); Walker, List Dipt. pt. v. 
Suppl. 1, p. 200 (1854); Osten Sacken, Cat. (1878).—Patria ignota 
(Wiedem.), Honduras ( Walker’). | 
* CO. mitis, 2, Osten Sacken, J. ¢. p. 874 (1876) ; id. Cat. (1878); Williston, 
Trans. Kans. Acad. x. p. 132 (1887).—Canada. 
*C, sordidus, 9, Osten Sacken, /. ¢. p. 376 (1876); id. Cat. (1878) ; 
Williston, Trans. Kans. Acad. x. pp. 131, 184 (1887).—Canada, 
United States. 
#(C. striatus, 9, Osten Sacken, J. ¢, p. 391 (1876); id. Cat. (1878).— 
Illinois. [C. vetéatus, Bell. (Mec Wiedem.), Ditt. Mess. i. p. 74 (1859). 
—Mexico. } 
*C. fulvaster, S$ 2, Osten Sacken, Western Diptera, p. 221 (1877) ; id. 
Cat. Dipt. N. Amer. (1878); Williston, Trans. Kans. Acad. x. 
pp. 182, 184 (1887). [C. coloradensis, § 9, Bigot, Mém. Soe. Zool. 
Fr. v. p. 605 (1892).]—Colorado. 
C. proclivis, 9, Osten Sacken, Western Diptera, p. 222 (1877) ; id. Cat. 
