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     Information relative to the distribution of the ants of the Colorado and Mojave Deserts has been cited by three different methods. First indicated is RANGE: here is cited, in general terms, the total known range of the species. This is followed by DESERT RECORDS: under this heading the range of the species within the Mojave and Colorado Deserts is indicated. In the case of species for which there are many records a general statement is made.
     Where there are few records (usually fewer than 20) collection data are cited in full: locality, date, collector(s), field numbers (where apropos) and depository of the sample.
     Collection sites for each record for each species are indicated on the xx (number) distribution maps. Maps were plotted by means of a computer program Versamap, available as a download and based on longitude and latitude. When precise coordinates were unknown (as was true for almost all earlier records) these were estimated to the nearest minute. Certain assumptions had to be made during this process. For example, a specimen label that reads "11 mi W Needles" almost certainly should be corrected to read "11 mi NW"; there are no roads extending that far west of Needles and the collection was most probably made along the highway (old Hwy 66) which runs northwest out of Needles. Of course, on the scale of these maps, such a slight distinction is hardly evident.
     A few abbreviations in data citation are used, in addition to those of specimen depositories, already noted above under

ACKNOWLEDGEMENTS. These are: ABDP, Anza-Borrego Desert State Park; DG, Derham Giuliani collector; DVNP, Death Valley National Monument; GJW, George and Jeanette Wheeler collectors; JTNP, Joshua Tree National Monument; RRS, R.R. Snelling collector; RRS & CDG, R.R. Snelling & C.D. George collectors; WSC, W.S. Creighton collector


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Date of this version 18, October 2003
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