MEMOIES OF THE NATIONAL ACADEMY OF SCIENCES. 



QS 



1. Tineoids or Stenopteri/gia. 



These are Tineoid forms with many vestige.s of archaic features, nsually with narrow wings, 

 of dull hues or with metallic bars, or with liii;hly specialized scales, and spot", and the venation 

 generalized in the earlier forms. The maxilhe are sometimes aborted (wholly so in Hepialida?); 

 palpi either well developed, more or less reduced, or wanting; mandibles rarely occurring as 

 minute vestiges; the thorax ueuropteroid; in the more primitive forms, becoming shorter, and the 

 segments fused together in the later or more specialized groups. 



The pupic are inconii)lete; the more primitive forms with the eye collar; labial palpi visible; 

 paraclypeal pieces distinct; abdomen often in the most primitive forms with no cremaster. 



Larvie with one haired tubercles, the four dorsal ones arranged in a trapezoid on abdominal 

 segments 1-S; usually a prothoracic dorsal plate; the abdominal legs sometimes wanting in certain 

 nnning forms and Cochliopodida' ; larvte often case-bearers or borers; crochets on the abdominal 



Fig. 7 Larva of 



Adela .iriddla; en- 

 lar;red. 



FiQ. 8.— Larvaot 

 Ncmatois vioh'UiiS; 

 enlarged. 



FlQ. 9. — Larva of Sitniethis oxymnthai A. side view. 



legs in the primitive types arranged in two or more complete circles; in the lowest forms a well- 

 marked spinneret. 



From the generalized types many offshoots or lines of descent arose whose position isdiflicult 

 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. 



liemarJi's on the Tineinu. — It nmst now be very obvious that we need to reexamine and revise 

 the Tineiua, and especially their i)uii;e and inuigines, particularly those of the more genei'alized 

 forms, such as the Tineid;e (Tinea and Blabophaues) and the Tala>pori(he, comprising all those 

 ancestral forms with broad wings and generalized venation, which may have given rise to the 

 ueolepidopterous families. 



Then careful studies should be made on the Adelidit, Choreutida?, and Nepticulid;?, and other 

 families and genera in which the mandibles have persisted (though in a vestigial condition). 



