100 Journal New York Entomological Society, t^oi. xxv. 



hcmionus Raf. (syn. Cervus macrotis Say), the mule deer, in the 

 Northwest Territory, transmitted by Baron Osten-Sacken, were de- 

 scribed and figured by Brauer as C. macrotis, the name being- omitted 

 from the description but inserted in the index (Mon. CEstr., pp. 211- 

 212, 279, pi. IX, fig. 9). If there is any doubt about the validity of the 

 name, it was formally applied and thus confirmed by Brauer & 

 Bergenstamm in 1894 (Muse. Schiz., IV, p. 547). The only locality 

 given by Brauer was North America, but Osten-Sacken supplied 

 further details in 1878 (Cat. Dipt., p. 144). The range of the host 

 in the old Northwest Territory was Minnesota, the Dakotas and 

 western Iowa, which means that these bots came from somewhere in 

 that region. The species will be readily identified on the larval char- 

 acters given by Brauer. It seems very probable that it is the larva 

 of phobifer. On larval characters it comes nearest to the European 

 stimulator. 



1863. Two or more third-stage larvae taken from throat of 

 Cervus canadensis Erxl., the wapiti or American elk, transmitted by 

 Baron Osten-Sacken, were identified by Brauer as ulrichii, which is 

 a European species (Mon. CEstr., p. 202). Again only the locality 

 North America was given. The host originally ranged from Massa- 

 chusetts to North Carolina and westward. Since the larval char- 

 acters of pratti are closely similar to those of ulrichii, it seems practi- 

 cally certain that these larvje from the wapiti were pratti. 



1883. One or more larvae taken from throat of Odocoileus mexi- 

 canus Gmel. (so stated but may have been couesi C. & Y.) in Durango 

 were recorded by Brauer as belonging to this genus (Zweifl. Kais. 

 Mus. Wien, III, p. 82). Brauer & Bergenstamm later applied the 

 name mexicana to these larvae (Muse. Schiz., IV, p. 547). The name 

 is invalid, since it was connected with neither description nor figure. 

 The species, however, is almost certain to be pratti. 



1884. Three dozen or more third-stage larvae, taken from Odo- 

 coileus columbianus Rich, by Dr. Charles H. Townsend in Shasta 

 County, California, bear Smithsonian Accession 17956 and are pratti. 



1889. Four third-stage larvae taken from pockets or pouches in 

 the throat of deer near San Jose, California, are pratti. This is the 

 material referred to in Insect Life, I, 386-7. 



1899. In July and August, I took large numbers of immature 

 third-stage larvae from the heads of many individuals of Odocoileus 



