12 
Psyche 
[March- June 
Grosso in Brazil which I believe are that species; they 
average somewhat larger than the Panama specimens, and 
the structure of the front and callus is slightly but consis- 
tently different, as shown in Krober’s and my figures. 
(Figs. 5, 5a, 5b) Bequaert’ s record of T. xipe from Pan- 
ama (1940, Bull. Ent. Res., Ill, 4, p. 449) should certainly 
be the present species. 
Distribution : Costa Rica and Panama. 
Panama records: Camp Pital, Chiriqui Prov., July 11-20, 
1929 (Dunn) ; Changuinola Dist., Bocas del Toro; Mt. 
Hope, C. Z. Oct. 30, 1939, Dec., 1939; Ft. Davis, C. Z. Oct. 
30, 1939 ; Moja Polio, Chagres River region, May to Novem- 
ber, 1940; Venado Beach, C. Z. June 22, 1939; Utevey, near 
Pacora, May 18, 1941; Pacora, Dec. 21, 1931 (Dunn.). 
Tabanus (Bellardia) oculus Walker (Figs. 3, 3a, 3b) 
Tahanus oculus Walker, 1848, List Dipt. Brit. Mus., I, 
p. 157 ( 9 ; Honduras and Colombia) ; 1854, Op. cit., V, 
Suppl. I, p. 190. Osten Sacken, 1878, Cat. Dipt. N. Amer., 
p. 61. Hunter, 1901, Trans. Amer. Ent. Soc., XXVII, p. 146. 
Bodkin and Cleare, 1916, Bull. Ent. Res., VII, p. 187, 
(British Guiana). Hine, 1925, Occ. Pap. Mus. Zool. Univ. 
Michigan, No. 162, p. 23. Bequaert, 1931, Jour. New York 
Ent. Soc., XXXIX, p. 540-541, fig. la. ( $ ; Yucatan, Guate- 
mala, Honduras, Br. Honduras) . Dunn, 1929, Am. J. Trop. 
Med., IX, p. 501 (Colombia; as occulatus ) . 
Bellardia oculus Krober, 1929, Zool. Anz., LXXXIII, p. 
121 ; 1934, Rev. Ent., IV, 2, p. 261. 
Tahanus alhonotatus Bellardi, 1859, Ditt. Mess., I, p. 56, 
PI. II, fig. 5. ( 9 ; Mexico, Tampico). Osten Sacken, 1878, 
Cat. Dipt. N. Amer., p. 60; 1886, Biol. Centr. Amer., Dipt. 
I, p. 55. Hunter, 1901, Trans. Amer. Ent. Soc., XXVII, 
p. 139. Williston, 1901, Biol. Centr.-Amer., Dipt. I, Suppl., 
pp. 257, 260. Aldrich, 1905, Cat. N. Amer. Dipt., p. 200. 
Kertesz, 1900, Cat. Tab., p. 38 ; 1908, Cat. Dipt., Ill, p. 219. 
Surcouf, 1921, Gen. Insect., Taban., p. 59. Bequaert, 1925, 
13th Rep. United Fruit Company Med. Dept., (1924) p. 206. 
Bellardia alhonotatus Rondani, 1863, Arch, per la Zool., 
Modena, III, I, p. 81. 
Tahanus hipartitus Walker, 1848, List. Dipt. Brit. Mus., 
