129] LEPIDOPTEROUS LARVAE — FR ACKER 129 



dd. Prothorax much smaller than mesothorax; abdomen usually 

 not marked by subdorsal lines. Thecla 



cc. Lateral line discontinuous and faint or absent. 



d. Labrum notched to about one-third its depth. Chrysophanus 

 dd. Labrum very shallowly concave at tip. 



e. Body widest in metathoracic region, tapering rapidly cepha- 

 lad and gradually caudad. 

 f. Fifth ocellus located below center of arc formed by first 

 four ocelli ; second ocellus out of line, making arc un- 

 even. Calycopys 

 ff. Fifth ocellus located at center of arc formed by first four 

 ocelli ; arc regular, even. Heodes 

 ee. Body widest in region of segment 6 of abdomen, tapering 

 gradually cephalad and rapidly caudad. Uranotes 

 aa. Head less than one-fourth the diameter of the bod3\ 



b. Body marked by longer setae on outer margin of narrow dorsal 

 area than on other parts, 

 c. Anal segment broad and greatly depressed. Everes 



Philotes 

 cc. Anal segment narrow and moderately depressed. Cyaniris 



bb. Body covered with setae of uniform length throughout. 



c. Setae of body long, closely set ; vertical triangle rather broad. 



Nomiades 

 ee. Setae of body short, rather sparse ; vertical triangle very nar- 

 row. Rusticus 



This synopsis was prepared to cover the following species. All 

 were examined in the National Museum except those marked with an 

 asterisk and they are carefully described by Scudder : 

 Eumaeiis atala Chrysophanus thoe 



Feniseca tarquinius Calycopys cecrops 



Mitoura damon Heodes hypophleas ^ 



Thecla adenostomatis Uranotes melinus 



Family Riodinidae 



No riodinid larvae have been seen. The group is sometimes called 

 a subfamily of Lycaenidae to which it is closely related. The head is 

 said to be about half the diameter of the subonisciform body. In the 



