District of ColumbiaMountain:GarrettRidge & Valley:AlleganyWashington |
Piedmont:FrederickCarroll Baltimore Harford Cecil Howard Montgomery |
Western ShoreAnne ArundelPrince George's Calvert Charles St. Mary's |
Eastern ShoreKentQueen Anne's Caroline Talbot Dorchester Wicomico Somerset Worcester |
OdonataCentral has
information you can use. One of the features is a tab for
checklists in North America.
The ones for the counties in Maryland are linked above. (There
currently is none for the District of Columbia, so a locally
produced PDF file is used instead.)
In addition, you can view dot maps
based on the ODONATA OF MARYLAND & WASHINGTON D. C.
There is a dot map for each species, showing an outline of
Maryland (and D.C.) with a symbol in each county where the
species has been recorded.