8 1 6 Journal of Agricultural Research vol. xx, No. « 



the forewing would seem to throw B. diveni into Mey rick's genus Erysip- 

 tila. The latter, however, is again distinct on characters of genitalia on 

 which it will have to be retained and recharacterized, as the raised scale 

 character does not seem to hold. It is possessed by B. diveni but not by 

 the other closely allied species (B. conia, B. fasciata, etc.). The genus 

 Erysiptila, while similar to these in some genitalic characters (for example, 

 the peculiar development of fused and armed soci and gnathus) and thus 

 separable from the genus Borkhausenia, has the organs symmetrical 

 throughout and the harpes laterally rather than ventrally placed. Of 

 the North American species now listed under the genus Borkhausenia 

 only three {B. pseudospretella Staint., B. haydendla Chambers, and B. 

 ascriptella Busck) agree with the type species on all characters. For the 

 present, however, B. diveni and its allies may be retained in that genus. 

 Until the entire family can be revised along lines suggested by the devel- 

 opment of genitalic structures there is nothing to be gained by erecting 

 a single genus on these characters. 



FAMILY STENOMIDAE 

 AEDEMOSES HESSITANS WALSINGHAM 1 



(pl. 95, b, c; 104, d) 



Aedemoses hcesiians Walsingham, 1912, in Biol. Centr.-Amer., Lep. Heter., 

 v. 4, p. 154. 



Eighteen specimens (males and females) of a moth which Mr. Busck has 

 determined as this species were reared by Diven from larvae which he had 

 collected on "Mexican ebony" (Siderocarpus flexicaulis) at Brownsville, 

 Tex. The genus and species were described by Walsingham from a 

 unique female without hind legs, collected at Presidio Durango, Mexico, 

 and have not since been recorded. The present rearing, therefore, adds 

 another to our list of United States species. There can be no doubt of the 

 identification, as Busck has seen and is familiar with the Walsingham 

 type and our reared examples agree in all details with the description. 



The larva is a leaf-tier, binding together several leaves and feeding 

 within the tie, eating first the epidermis and later all but the veins of the 

 leaves. It pupates within the tie, the pupa being naked and attached at 

 its caudal end by a strand of silk to one of the leaves. 



The larva is a typical stenomid, slightly flattened and with seta III 

 antero-dorsad of and close to the spiracle on abdominal segments 1 to 7 

 (PI. 104, D); body white with four pale purplish brown longitudinal 

 stripes, one subdorsal pair just below the level of setae I and II, and a 

 dorso-lateral one just above the level of setae III; thoracic and anal 

 shields pale yellow; thoracic legs pale yellow, lightly shaded with brown; 



1 Meyrick sunk the genus Aedemoses Walsingham as a synonym of the genus Stenoma Zeller, but on 

 insufficient grounds, as he disregards its very distinct venational structure in favor of general appearances. 

 (Meyrick, E. exotic microlepidopiera, v. i, pt. 13. p. 412. 1915.) 



