MEMOIRS OF THE NATIONAL ACADEMY OF SCIENCES. 
63 
1. Tineoids or Stenopierygla. 
These are Tiiieoid forms with many vestiges of archaic features, usually with narrow wings,, 
of dull hues or with metallic bars, or with highly specialized scales, aud spots, and the venation 
generalized in the earlier forms. The maxilhe are sometimes aborted {wholly so in Hepialidm); 
palpi either well developed, more or less reduced, or wanting; mandibles rarely occurring as 
minute vestiges; the thorax neuropteroid; in the more primitive forms, becoming shorter, and the 
segments fused together in the later or more si>ecialized gronps- 
Tlie pupie are incomplete; the more primitive forms with the eye collar; labial palpi visible; 
paraclypeal pieces distinct; abdomen often in the most primitive forms with no cremaster. 
Larvje with one-haired tubercles, the four dorsal ones arranged in a tra])ezoid on abdominal 
segments 1-8; usually a prothoracic dorsal plate; the abdominal legs sometimes wanting in certain 
mining forms and Cochliopodkhe ; larvm often case-bearers or borers; crochets on the abdominal 
ViG. 7. — Larva of 
Adela 'iridella; en- 
larged. 
Fig. 8.— Larva of 
Neinatois &iolcUu9i 
enlarged. 
Fig. 9.— Larva of Simiethis oxijcantha; A, side view. 
legs in the primitive types arranged in two or more complete circles; in the lowest forms a well- 
marked spinneret. 
Fi'om the generalized types many offshoots or lines of descent arose whose position is difficult 
to assign until we know more about the pupa>, as well as the venation, so that the following 
grouping is entirely provisional; the more generalized forms are evidently archaic and very 
primitive, and the members of the groups may be briefly called for convenience Tineoids, from 
their general resemblance to the Tineiua. 
RemarJcs on the Tineina . — It must now be very obvious that we need to reexamine and revise 
the Tiiieiiia, and especially their pupm and imagines, particularly those of the moi^e generalized 
forms, such as the Tineidie (Tinea and Blabophanes) and the Taheporidse, comprising all those 
ancestral forms with broad wings and generalized venation, which may have given rise to the 
neolepidopterous families. 
Then careful studies should be made on the Adelidte, Ghoreutidm, and Nepticulidfe, and other 
families aud genera in which the mandibles have persisted (though in a vestigial condition),. 
