48 



differs markedly, too, the prothorax and metathorax being much 

 shorter. The mesonotum has its caudal margin produced into a long 

 lobe, while in the other families the caudal margin of the mesonotum 

 is very slightly curved. The appendages are very slightly soldered to 

 each other and to the body, and the wings reach on to the fourth ab- 

 dominal segment. The spiracles are small, circular, and very slightly 

 produced. The pupae are from 6-8 mm. in length. The genera may 

 be separated as follows : 



a. Body setae longer than the abdominal segments, heavily chitinized 

 and forked at the end ; maxillae, measured on the meson, about half 

 the length of the wings ; abdominal segments without deep punctures 

 along the cephalic margin, but with a row of sharp triangular spines. 



Breniliia Clemens. 



aa. Body with very short inconspicuous setae ; maxillae extending to the 



caudal margin of the wings ; abdominal segments 2-6 with a row of 



deep punctures along the cephalic margin, and with a row of 



sharp triangular spines just cephalad of the punctures. 



Clioreutis Hiibner. 



The following species were examined : 

 Brcnthia pavonacella Clemens 

 Choreutis inflatella Clemens, gnaphiclla Kearfott 



SuPERFAMiLY AEGERIOIDEA 



■ The Aegerioidea, together with the Tortricoidea retain freedom of 

 movement in abdominal segments 3-7 in the male and 3-6 in the 

 female. The appendages are soldered to the body so that there is no 

 ventral movement possible between the first two abdominal segments ; 

 but there is undoubtedly dorsal movement, and at dehiscence these 

 segments separate very distinctly from each other and the thorax, indi- 

 cating that they have only recently lost their power of motion. In this 

 superfamily is included the one family Aegeriidae. They form a very 

 compact group in which it is hard to find satisfactory characters differ- 

 entiating the genera. Moreover, pupae in good condition are difficult 

 to obtain ; but it is hoped that the characters used here in separating 

 the genera and in defining the superfamily will hold good for those 

 groups to which they are applied. The sexes vary considerably and 

 it has not been possible in all cases to obtain both male and female. 

 This superfamily has most often been associated with the Tineoidea, 

 but pupal characters indicate a much closer relationship to the Tortri- 

 coidea. It is apparently somewhat nearer to the primitive families 

 Eriocraniidae and Nepticulidae than the Tortricoidea, owing to the 



