1909. j OF THE LEPIDOPTEROUS GENUS LYCENOPSIS. 4435 
16. argiolus Linn. 
A good deal of what I have done in investigating this species 
will be found in Tutt’s account of it (Brit. Lep. vol. ix. p. 387 
et seq.), and in Proc. Ent. Soc. Lond. 1908, p. lxxxi. 
The number of named varieties, races, and aberrations is very 
great. I have examined a very large number of specimens, and 
the ancillary appendages are all identical and quite unlike those ot 
any other species of Lycewnopsis, puspa being perhaps the nearest. 
The amount of variation in the appendages is apparently confined 
to the greater or less prominence of the four or five teeth on the 
spine of the clasp. They are never entirely obsolete, and are 
perhaps as pronounced in British specimens as in those of any 
other race. The soft process of the clasp varies a little in its 
prominence, though this may depend sometimes on slight varia- 
tions of procedure in mounting the specimens. 
Text-fig. 79. 
argiolus (English). X 37. 
I will not deal with varietal names, beyond one or two in 
addition to those that I find in Dr. Butler’s list. 
Dr. Butler confines the name argiolus to the European form, 
to the American form he gives the name ladon Cramer ; Cramer’s 
figure looks like a Lycenopsis, and like an argiolus. The assigned 
locality is obviously erroneous, but whether the specimen actually 
came from Europe, Asia, or America, is quite a matter of doubt. 
pseudargiolus seems therefore the name for the American form. 
Zor 
