1895.] The Classification of the Lepidoptera. 1069 
To turn now to the Protolepidoptera (Packard’s suborder I). 
Aside from the generalized condition of the mouth parts and 
the body as a whole, no characters appear to prove that Erio- 
cephala is entitled to subordinal rank. The possession of gen- 
eralized characters is also called for in placing this genus in 
the Jugatz. It is true that if the external lobe of the maxille 
corresponds to the tongue and not the inner (galea) in Erio- 
cephala as Dr. Packard implies in his article, quoting Dr. 
Walter, we would have a real difference, indicating a dicho- 
tomous division. But Dr. Walter homologizes the true tongue 
of his “höheren Micropteryginen” (the Paleolepidoptera of 
Packard), also with the outer lobe, stating “ Die Innenlade 
der Maxille ist indes völlig geschwunden. Als einzige Maxil- 
larlade ziegt sich hier ein zwar noch kurzes, aber typisch ent- 
wickeltes und leicht rollbares Riisselchen” (Jena. zeit. fur 
Naturwissenschaft, xviii, 761) and Prof. Kellogg thinks that it 
is the inner lobe in all cases that corresponds to the tongue 
(Am. Nat., June, 1895, p. 547), finding a rudiment of the outer 
lobe in the true Micropterygide. 
The larva of Eriocephala is admittedly a specialized one. 
Not much is to be gained in discussing it, as it is in the inter- 
est of both views to show it different from most larve. Still I 
will show that the arrangement of the sete may be derived 
from the Micropteryx type. Their form is unique and most 
interesting, but not valuable in classification. 
I will briefly discuss, but in more detail, the characters of 
the larvee of the several families of the Jugate, as far as they 
are known to me. 
Suborder JUGAT A. 
Superfamily HEPIALIDES. 
Family Hepialide. 
Hepialus mustelinus. Stage I (Fig. 1). The prothoracic seg- 
ment is normal for all generalized Lepidoptera. On the two 
posterior thoracic segments the primary setæ are present with 
3 Grote, Syst. Lep. Hildesiæ, 1895. 
