INCISALIA SCUDDER’, A HOLARCTIC GENUS 
(LEPIDOPTERA: LYCAENIDAE) 2 
By Nicholas W. Gillham 
Harvard University 
Recently I have compared specimens of Ahlbergia fri- 
valdszkyi (Lederer), the generitype of Ahlbergia, and 
Incisalia niphon (Hiibner), the generitype of Incisalia. 
The genitalia and external facies of these species indicate 
that they are congeneric, and examination of other species 
of Incisalia further supports this conclusion. I therefore 
propose the following synonymy for the genus Incisalia : 
Incisalia Scudder 
Incisalia Scudder, 1872, 4th Ann. Rept. Peabody Acad. 
Sci., 1871:31. Generitype: Lycus niphon Hiibner, by 
original designation. 
Thecla, div. auct., nec Fabricius, 1840, in Illiger, Magazin 
fur Insektenkunde, 6:286 (generitype Papilio betulae 
Linnaeus, designation by Swainson, 1821, Zoological 
Illustrations, (1) 2, pi. 69), part. 
Lycus Hiibner, [1819], Verzeichniss bekannter Schmettlinge 
[ !] (generitype Papilio rubi Linnaeus, designation by 
Scudder, 1875, Proc. Amer. Acad. Sci., Boston, 10:210), 
part. 
Licus Hiibner, [1819], Zutrage zur Sammlung exotischer 
Schmetterlinge, 2:7, no. 102 (generitype Papilio rubi 
Linnaeus, designation by Scudder, 1872, 4th Ann. Rept. 
Peabody Acad. Sci., 1871:52), part. 
Satsuma Murray, nec Adams, 1874, Ent. Mon. Mag., 11 :168. 
Generitype: Lycaena ferrea Butler (—Thecla frivaldszkyi 
Lederer), monobasic. New Synonymy. 
'Scudder is the author of this genus, not Minot; see dos Passos (1943). 
Published with a grant from the Museum of Comparative Zoology 
at Harvard College. 
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