Numbers
at least 9 species in our area, 136 in total
Agallia barretti Ball, 1900: AZ; Mexico
Agallia bidactylata Oman, 1933: AZ
Agallia constricta Van Duzee, 1894: eastern U.S. and Canada
Agallia deleta Van Duzee, 1909: eastern U.S.
Agallia lingulata Van Duzee, 1907: eastern U.S.
Agallia nielsoni Freytag, 2003: TX, LA to Central America
Agallia obesa Oman, 1933: MS
Agallia pumila Oman, 1971: CA, OR, WA
Agallia quadripunctata (Provancher, 1872): trasncontinental U.S. and Canada
Identification
Nymph: the earlike processes between the eyes are distinctive. Dark members of the genus Ceratagallia can sometimes be confused for Agallia.
Remarks
This genus is highly polyphyletic and in need of revision. The New World members of this genus have been determined to be unrelated to the Old World type of this genus, Agallia consobrina.