67] LEPIDOPTEROUS LARVAE — FRACKER 67 



Family Tineidae 



In this paper the Tineidae include only a few genera closely related 

 to Tinea, such as Tineola and Scardia. They distinctly show the char- 

 acters given for the superfamily Tineoidea but differ strikingly from 

 the other three families in the following combination of characters: the 

 setae alpha on the abdominal segments are farther apart than the setae 

 beta, the crochets are uniordinal and are arranged in a complete uni- 

 serial circle, and the three setae forming the Kappa group on the protho- 

 rax are close together. 



Scardia fiskeella (Figs. 51 to 54) was the only species examined of 

 which the material was entirely satisfactory, altho Tineola hisselliella 

 was also seen. 



Family Bucculatrigidae 



Systematists have come to think of the genus Bucculatrix as a 

 chronic obstacle to the satisfactory classification of the lower Micros. 

 It has been driven "from pillar to post" and the end is not in sight. 

 The situation usually consists in the positive denial of admittance to the 

 particular family which an investigator is studying. The author erects 

 a new family for the genus, first, because specialists on adult Microlepi- 

 doptera will not admit the validity of placing Bucculatrix in any one 

 of the recognized families ; second, because the larvae can not be closely 

 associated with those of any other genus of which specimens have been 

 examined. The diagnostic characters of Bucculatrix koehelella are as 

 follows : 



Head about as high as wide, not elongate, bearing primary setae 

 only; front reaching about two-thirds, adfrontals all the way, to the 

 vertical triangle. Body cylindrical, intersegmental incisions moderate. 

 All setae in the position usual in Mierolepidoptera, except that on the 

 abdomen, kappa and eta are widely separated and at about the same 

 level, and that alpha is below the level of beta on segments 8 and 9. 

 Spiracles circular. Prolegs slender and rather long, present on segments 

 3, 4, 5, 6, and 10, the ventral ones each bearing two transverse bands of 

 uniordinal, well-developed crochets, the anal pair bearing a single trans- 

 verse band. 



Family Lyonetiidae 



The small size and generalized but obscure characters of this family 

 make the genera and species difficult to distinguish. It is often almost 

 impossible to make out locations of setae, arrangement of ocelli, and 

 other points ordinarily of value. 



