101 



ent at the caudal end of the body. Only one genus of this family was 

 available for study. 



The following species were examined : 

 Scythris eboracencis Zeller, iinpositclla Zeller. 



Family Gelechiidae 



The pupae of the Gelechiidae never show any portion of the labial 

 palpi, unless it should be a very small triangular area caudad of the 

 labrum, between the halves of the maxillae. The prothoracic femora 

 are never exposed (Figs. 90, 91, 92, 93, 94). The fronto-clypeal su- 

 ture is always distinct and usually e>;tends almost straight across be- 

 tween the proximal ends of the antennae, but occasionally each half 

 is directed cephalad near the meson so that an angle is formed at their 

 junction. The caudal parts of the antennae usually lie adjacent on the 

 meson for about two fifths of their length and usually cover the caudal 

 ends of the maxillae and sometimes of the prothoracic and mesotho- 

 racic legs. They usually separate at their distal ends to show the meta- 

 thoracic legs, or what will be referred to as such in this paper. There 

 was not enough available material in condition for dissection to de- 

 termine whether the maxillae ever reached the caudal margin of the 

 wings and overlaid the metathoracic legs, as might easily be the case. 

 The maxillary palpi are present in all, but do not always reach the 

 proximo-lateral angles of the maxillae. They are always reached by 

 both prothoracic and mesothoracic legs. The wings vary somewhat 

 in length, but are usually firmly soldered down, and the abdominal seg- 

 ments are somewhat depressed on the ventral surface, forming a 

 shallow cavity into which the wings are fitted and, therefore, are not 

 elevated above the surface of the body. There are usually very deep 

 incisions between the segments, especially on the dorsal and ventral 

 surfaces. Many species have the incisions deeper on the ventral sur- 

 face so that the caudal end of the body may be strongly curved ven- 

 trad. The pupae are usually very active, and many of them are able 

 to move after the fashion of click-beetles. The body is entirely cov- 

 ered with setae in some genera, while others have a fringe of setae 

 along the margin of certain slightly projecting ridges and occasional 

 depressions found usually on the seventh abdominal segment. There 

 seems doubt as to the generic standing of the following species : Aris- 

 totelia physalicllo, Gnorinwscliema laz'crnclla, and Rcciirvaria variclla; 

 at least they differ from other species examined in these genera. In 

 the case of Aristotclia it has been impossible to determine which 

 species is the type of the genus. The genera of Gelechiidae may be 

 separated as follows : 



