98 



bb. Caudal end of tenth segment showing eight setae ; four of these on 

 the ventral surface extending laterad and sometimes slightly 

 curved at the tip ; mesothoracic legs never reaching cephalad to 

 the maxillary palpi ArgyrestMa Hiibner. 



The following species were examined : 

 Plutella maculipennis Curtis 

 Yponomeuta padellus Linnaeus, malinelhis Zeller 

 Zelleria celastrusella Kearfott 

 Argyresthia freyella Walsingham 



Family Coleophoridae 



This family has usually been associated with the Elachistidae, but 

 since the division of that family the name means very little unless we 

 use it to include the genus Elachista and others closely related, which 

 certainly would not include the Coleophoridae. They seem, rather to 

 be more closely allied to the Yponomeutidae and are so considered 

 here. They differ mainly in the loss of the maxillary palpi and in the 

 lateral extensions of the ninth abdominal segment (Fig. 87). The ap- 

 pendages are usually very long, extending nearly to the caudal mar- 

 gin of the body, and often beyond it, when the movable segments are 

 contracted. The abdominal segments from the first to the sixth are 

 very much longer than the remaining segments. 



The following species were examined : 

 Coleophora caryaefoliella Clemens, vcrnoiiiacdla Chambers, mativo- 



rella Riley. 



SuPERFAMiLY GELECHIOIDEA 



This superfamily includes those pupae which possess a distinct 

 epicranial suture, with the caudal portions of the antennae lying adja- 

 cent on the meson and usually separating at their distal ends to expose 

 the metathoraic legs. The maxillary palpi are usually present, but 

 labial palpi and prothoracic femora are seldom exposed. The body is 

 usually ovate in outline as seen in dorsal or ventral view; widest in 

 the thoracic region and somewhat depressed. The superfamily is 

 closely related to the Yponomeutoidea. It includes here two groups 

 representing two distinct lines of development: the group retaining, 

 the fronto-clypeal suture, including the families Lavernidae, Scythri- 

 dae, Gelechiidae, and Chrysopeleiidae ; and those in which it is not 

 distinct or is absent, including the families Oecophoridae, Stenomidae, 

 Cosmopterygidae, and Elachistidae. The latter group may represent 

 a distinct superfamily when all its allied genera have been studied, but 

 at present there is no evidence to warrant such a conclusion. The fol- 

 lowing table will serve to separate the families of Gelechioidea : 



