. Cattle ticks (Ixodoidea) of the United States. Ixodidae; Ticks. Fig, 110.—Ventral view of Rhipiceph- alus Fig. 111.—Stigmen of same. Greatly enlarged. Orig- inal, There is some difference of opinion regarding the genus to which the Texas fever tick belongs. While it was originally placed in the genus Ixodes by both Say and Riley, Cur- tice proposed for it a new genus, Bo- ophihis^ and this name has been very generally adopted by American authors and even by the press. /Its validity is, however, disputed. Undoubtedly the Texas fever tick does not belong in Ixodes^ and the questio
. Cattle ticks (Ixodoidea) of the United States. Ixodidae; Ticks. Fig, 110.—Ventral view of Rhipiceph- alus Fig. 111.—Stigmen of same. Greatly enlarged. Orig- inal, There is some difference of opinion regarding the genus to which the Texas fever tick belongs. While it was originally placed in the genus Ixodes by both Say and Riley, Cur- tice proposed for it a new genus, Bo- ophihis^ and this name has been very generally adopted by American authors and even by the press. /Its validity is, however, disputed. Undoubtedly the Texas fever tick does not belong in Ixodes^ and the question is whether it should be placed in Bhipicephalus or be made the basis of a distinct genus, Boophihis. It must be admitted that Boojpliiliis is by no means so clearly defined from Rhijpi- cejyhalus as the latter is from Dermacentor^ Ilwm^aphys- alis^ or Ixodes. On the other hand, it is to a certain extent different from the average Bhipicepha- lus. Neumann, who has examined more different species of ticks than any other author, and to whose opinion, therefore, great weight should be attached, unhesitatingly suppresses the genus Bo- ophilus^ not giving to it even subgeneric rank. Ward, on the other hand, inclines to look upon BoojMlus as of generic rank, and the late Dr. Marx (1892) was of the same opinion. Our own view has been for some years that Boophilus should be given at least subgeneric rank under Bhipice])hahcs. The point at issue is of both theoretical and prac- tical importance. Under existing circumstances, we consider it better in the present paper to hold to the name Boojjhilus^ recognizing this as a distinct genus. We are. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Salmon, D. E; Stiles, Charles Wardell, 1867-1941. Washington : G. P. O.
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