Distribution of Neoscapteriscus borellii in North America north of Mexico

Description:

Version of manually-generated dot map displayed above, showing U.S. and Canadian records, was harvested from SINA on Aug-05-2018.


Circled numbers are the last two digits of the earliest record for that locality. Years with arrows show place and approximate date of apparently independent introductions. Thin dashed lines show limits of spread for indicated date. Heavy dashed line is the approximate general distribution in 1980.

Map modified from Fig. 1 in Walker & Nickle 1981.