1924 ] Notes Upon Surcoufs Treatment oj the Tabanidoe 
33 
ornicus Marten and T. hcemaphorus Marten as valid species. 
More recently Hine (Canad. Entom., LV, 1923, pp. 143-146) 
has added T. gracilipalpis and T. sexfasciatus. 
Including these, we obtain a total of 334 species of Tabanidse 
known at present from America north of Panama. They are 
divided among the several genera as follows: Apatolestes, 1; 
Chrysops, 71; Hcematopota, 3; Corizoneura, 4; Diachlorus, 1; 
Diatomineura, 4; Dichelacera, 6; Rhinotriclista {Diclisa of Sur- 
couf), 1; Erephopsis, 2; Esenheckia, 1; Goniops, 1; Lepiselaga, 
1; Merycomyia, 2; Neochrysops, 1; “Pangonius/’^ 18; Pityocera, 
1; Scione, 2; Silvius, 4; Snowiellus, 2; Stibasoma, 2; and Ta- 
banus, 206. Of these Goniops^ Merycomyia, Neochrysops, and 
Snowiellus are restricted to the Nearctic region (north of Mexico). 
It may still be mentioned that Surcouf (p. 130) erroneously 
quotes Trichophthalma amcena Bigot and Hermoneura landbecki 
Philippi among the synonyms of Diatomineura latipalpis 
(Macquart), having evidently followed in this Kertesz (Cat. 
Dipt., Ill, 1908, p. 170). Both Bigot’s and Philippi’s descrip- 
tions refer, however, to a nemestrinid which should be known as 
Eurygastromyia landbecki (Philippi). See Lichtwardt, Deutsch. 
Ent. Zeitschr., 1910, p. 608. 
Remarks Upon Ethiopian Species 
Tabanus corax Loew, Wien. Ent. Monatschr., VII, 1863, 
p. 10. Surcouf (p. 79) lists this as a doubtful synonym of Ta- 
banus pluto Walker. Neave (Bull. Ent. Research, V, 1915, p. 
308), however, has shown that Loew’s name should be used for 
Tabanus xanthomelas Austen, of which T. leucaspis v. d. Wulp 
(not of Wiedemann) is a synonym. 
Tabanus alboventralis Newstead is recorded twice in the 
list (p. 59), the first time misspelled ‘‘albiventralisP It is ap- 
parently a synonym of T. sufis Jsennicke. 
^Whether there any true Pangoniiis, in the restricted sense, in North 
America appears extremely doubtful. The three species which I have ex- 
amined, viz., tranquilla Osten Sacken, rasa Osten Sacken, and fera Williston 
present all the characters of Austen’s genus Buplex, to which, I believe, they 
should be transferred. 
