1955] 
Gillham — I nets alia 
149 
and Licus with one or two unrelated species. Later authors 
either missed or disregarded this reference, and generally 
assigned the species of Incisalia to Thecla. In 1872 Scudder 
erected the genus Incisalia for niphon and its allies, while 
in 1874 Murray created the genus Satsuma for Lycaena 
ferrea Butler 3 . Leech was aware of Murray’s genus, and 
towards the end of the 19th Century described several 
new species as belonging to it. In 1946 Bryk pointed out 
that Satsuma Murray, 1874, was a homonym of Satsuma 
Adams (Mollusca), 1868. He therefore proposed the name 
Ahlbergia to replace Satsuma Murray. My own studies 
show that frivaldskyi is congeneric with niphon. For this 
reason I am placing Satsuma and Ahlbergia in the syn- 
onymy of Incisalia, the senior name. 
Synopsis of Species 
The following synopsis is based on current American 
references for Nearctic species and on Seitz (1910) for 
Palearctic species. No attempt has been made to determine 
whether or not any of these should be synonymized. 
Incisalia niphon (Hiibner), [1819], Verzeichniss bekannter 
Schmettlinge [!], (5) :74. Type locality and sex not 
stated. 
Incisalia irus (Godart), 1823, in Latreille, Encyclopedie 
Methodique, Histoire Naturelle Entomologie, etc., 9:674. 
Type locality: America (?), male. 
Incisalia augustinus (Westwood), 1852, in Doubleday and 
Westwood, The Genera of Diurnal Lepidoptera, 2:486. 
Type locality: northern parts of North America. 
Incisalia iroides (Boisduval), 1852, Ann. Soc. Ent. France, 
Series 2, 10 :289. Type locality : California, sex not stated. 
Incisalia eryphon (Boisduval), 1852, ibid., p. 290. Type 
locality : California, sex not stated. 
3 There is some disagreement on the specific distinctness of ferrea from 
Incisalia Jrivaldszkyi (Lederer). I have examined the genitalia of 
Japanese specimens referable to ferrea and Asiatic specimens referable 
to frivaldszkyi and can find no differences that would warrent keeping 
them separate as species. Therefore, I regard these names as concerning 
the same species. 
