48 PROCEEDINGS OF THE NATIONAL MUSEUM vol. iie 



smooth, white sprmkled with fuscous dorsally. Abdomen white, 

 shaded to various degrees with fuscous. Forewing long, somewhat 

 narrow; ground color white, with three large fuscous areas along costa; 

 marginal and submarginal transverse row of fuscous dots at apex, 

 marginal row darker and giving sinuated effect to termen; another 

 area of dark fuscous raised scales at anal angle. Anterior 

 half of cilia light fuscous, posterior half white. Hindwing very Hght 

 fuscous; cilia fuscous basally, white apically. 



Male genitalia: Uncus simple, short, with group of setae at apex; 

 gnathos two lateral plates flanking tuba analis; harpes with pincer- 

 shaped costa, apex somewhat pointed and recurved, bearing heavy 

 bifurcate setae; sacculus with prominent bifurcate lobe; vinculum 

 complete; anellus a large rectangular plate with large upright lateral 

 lobes; aedeagus large basally, tapering apically to a point, cornuti two 

 large clusters of heavy spines. 



Female genitalia: Genital plate large, with large median slot. 

 Ostium bursae sclerotized, ductus bursae short, membranous; corpus 

 bursae large, with large dumbbell-shaped, dentate signum; anterior 

 apophyses long, not fused to genital plate. 



Type: Siesta Key, Sarasota County, Florida. USNM 65825. 



Food plant: Unknown. 



Distribution: Florida: Siesta Key, Sarasota County (Jan., Feb., 

 March, April, May, Nov.); Vero Beach (April). 



Described from the male holotype, Jan. 24, 1954, two male para- 

 types, Feb. 26, 1954, Jan. 15, 1954, collected by C. P. Kimball, 

 Siesta Key, Sarasota County, Florida; two male paratypes, April 2, 

 1941, collected by J. R. Malloch, Vero Beach, Florida; one female 

 paratype, March 4, 1953, collected by C. P. Kimball, Siesta Key, 

 Sarasota County, Florida. 



This is the first species of the genus Mothonica to be described from 

 North America. It is very similar to Mothonica fluminata (Meyrick), 

 a Colombian species. The bifurcate lobe on the harpe of M. kimballi 

 readily separates the males. No females of M. fluminata were 

 available for comparison. 



This species is named in honor of Mr. C. P. Kimball of West 

 Barnstable, Massachusetts, who provided material from his personal 

 collection for description. 



Genus Menestomorpha Walsingham 



Menestomorpha Walsingham, 1907, Proc. U.S. Nat. Mus., vol. 33, p. 214. 



1. Menestomorpha oblongata Walsingham 



Figures 21, 43; Plate 4c; Map 11 

 Menestomorpha oblongata Walsingham, 1907, Proc. U.S. Nat. Mus., vol. 33, 

 p. 215. — Barnes and Busck, 1920, Contrib. Nat. Hist. Lep. North America, 

 vol. 4, p. 238. — Busck, 1934, in Lepidopterorum catalogus, vol. 67, p. 4. 



