AKT. 13 



SOME AMERICAN MOTHS HEINRICH 



15 



Remarks. — In my Kevision of the Oletlireutinae/ I placed lineana 

 provisionally in Hedia, calling attention to its aberrant character 

 (concave ternien of fore wing, the strongly bent condition of vein 

 2, and the origin of upper internal vein of cell from between 9 and 

 10). At that time we knew only the female. Since then Frank 

 Morton Jones has collected a number of the larvae in southern Florida 

 and reared a series of males and females, which are now in the Na- 

 tional Museum collection. 



The male genitalia, except for the weakly spined uncus and short 

 cucullus, would not bar the species from Hedia., but on other char- 

 acters it does not fit. The only other American olethreutine genus 

 with concave termen {Epishnus) lacks the tufted thorax and has 

 veins 3, 4, and 5 decidedly approximate at termen. 



Male genitalia figured from specimen reared from larva feeding 

 on Anona in southern Florida (issued March 8, 1930, F. M. Jones). 

 Mr. Jones writes of the larval habits as follows : 



Almost invariably feeding begins at the tip of the leaf, which is pulled to- 

 gether at the margins, leaving the basal portion of the leaf open and flat ; 

 as feeding proceeds and the larva grows larger, the folded-together portion 

 is extended toward the base, until the entire leaf is neatly folded together, 

 its margins meeting more or less evenly; and within the flattened cell thus 

 fonned the larva makes transverse partitions of white silk, these partitions 

 more or less evenly spaced. Usually only one larva inhabits a leaf, and when 

 more are present, they are of different ages. Probably one leaf usually suflices 

 for the growth of the larva, but when two leaves are in contact, the infested 

 one is sometimes joined with silk to the adjacent leaf, and both are fed upon. 

 No cocoons or pupae were found in the leaf-nests, though the small white 

 cocoons of a parasite were frequently present. * * * The Anona leaf tier 

 makes its cocoon by cutting a flap in a leaf -margin (not the leaf it has fed 

 upon) and folding it over. 



EXPLANATION OF PLATES 



The plates herein w^ere drawn under the author's supervision by 

 Mrs. Eleanor A. Carlin, of the Bureau of Entomology. They are 

 much enlarged but not drawn to a definite scale. 



Explanations of symbols applied to genitalia : 



Ae. atHloeagus. 

 An. anellus. 

 Cn. cornutus. 

 Gn. gnathos. 



Go. genital opening (female). 

 Hp. harpe. 

 Si. socii. 



Tff. tegumen. 



U. uncus. 

 Vm. vinculum. 

 Vm. a. bent arm of vinculum form- 

 ing attachment to tegu- 

 ment (in Epipyrops) . 



8 U. S. Nat. Mus. Bull. 132, p. 165, 1926. 



