4 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I3I 



series appeared more or less simultaneously in the Memoires de la 

 Societe Royale des Sciences, de I'Agriculture et des Arts de Lille, and 

 in a separately published form put out by Librairie Encyclopedique de 

 Roret, Paris. There is no difference in the text, but the pagination is 

 different, and in some cases the reprint is of an earHer or later date. 

 I have not been able in all cases to check as to which edition a given 

 page number refers, but since the work is adequately indexed in both 

 editions, this is not of great importance. The possible conflict between 

 Supplement 4 of Macquart's work and the Diptera Saundersiana of 

 Walker, both dated 1850, does not seem to concern any names for 

 Neotropical Tabanidae. Mr. Oldroyd felt that since Macquart's paper 

 was read in June 1849, though not published until sometime in 1850, 

 while Walker's paper appeared after September 12, 1850, it is best 

 to assume priority for Macquart's names where conflict occurs. Nearly 

 all of Bigot's species were described in an article entitled "Descrip- 

 tions de Dipteres Nouveaux" published in 1892 in Mem. Soc. Zool. 

 France, vol. 5, and will be cited here merely by the date and page. 

 Secondary references will be cited only by author and date, the full 

 reference cited only in the bibliography. 



Although fairly detailed notes, and in some cases camera lucida 

 sketches, of nearly all the types examined were made, it has seemed 

 better to present the results in the more condensed form of an anno- 

 tated list of the types examined. Much information that might aid 

 in the determination of specimens has thus had to be omitted, and the 

 list is primarily of nomenclatorial interest. It is planned, as time and 

 opportunity permit, to make the more interesting and perhaps more 

 valuable descriptive matter of the notes available, together with figures 

 of homotypes, in connection with planned revisionary studies now 

 being undertaken in collaboration with Dr. C. B. Philip. In the mean- 

 time, copies of the full notes will be deposited in the U. S. National 

 Museum and the British Museum for reference purposes. 



I have refrained from specifically selecting lectotypes of species with 

 more than one specimen in the type series. To do so at the time of 

 examination would have used more time in writing labels than I could 

 spare; to do so now would lead me into explanations and justifica- 

 tions for my action in each case and would unduly lengthen this paper. 

 In cases where more than one species is obviously involved in the type 

 series, I have indicated which one I believe should represent the name. 



The species discussed here are nearly all listed by Krober (1934) 

 in his catalog of the Neotropical Tabanidae. A few species listed by 

 him have been omitted here, such as T. pniinosus Bigot from Mexico, 

 fully treated by Philip (1950), and T. parvidentatus Macquart, dis- 



