﻿NO. 4 MICROLEPIDOPTERA FROM PANAMA — BUSCK 5 



Family GELECHIIDjE 

 DOLIDIRIA, new genus 



Labial palpi long, recurved, reaching beyond vertex; second joint 

 thickened with smoothly appressed scales; terminal joint shorter 

 than second, slender, acute. Tongue well developed, scaled at base. 

 Maxillary palpi rudimentary. Antennae three-fourths of the wing- 

 length, rather stout, slightly serrated and pubescent; basal joint 

 thickened with heavy scaling. Forewings elongate elliptical ; apex 

 evenly rounded ; 1 1 veins ; 7 and 8 coincident to costa ; rest separate ; 2 

 and 3 from well before the end of the cell ; 2 opposite 10. Hindwings 

 broader than the forewings ; costa straight ; apex blunt ; termen 

 slightly sinuate; 8 veins; 6 and 7 stalked; 3 and 4 stalked; 5 cubital. 

 Posterior tibiae rough-haired above. 



The genus is nearest to and a direct development from Durrantia 

 Busck, differing only in veins 7 and 8 of the forewings being 

 coincident instead of stalked. The diagnosis of the genus Durrantia 

 was purposely widened so as to admit the present form, of which at 

 the time only an undescribed species from Texas was known. 



There are however no good grounds to continue this lumping 

 and Durrantia should be restricted to the forms agreeing with the 

 type (piper at ella Zeller) in having 12 veins in the forewings, while 

 the present genus will include those closely allied species with very 

 similar general habitus, which have but 11 veins in the forewings, 

 caused by veins 7 and 8 becoming coincident. 



Genotype : Dolidiria arcanella, new species. 



DOLIDIRIA ARCANELLA, new species 



Labial palpi white; second joint shaded externally with ochreous 

 brown. Face and head white. Antennae light golden fuscous with 

 darker annulations. Thorax white, tinged with ochreous. Fore- 

 wings ochreous white, with first and second discal spots deep black, 

 edged with ochreous brown, and with sparse single black scales, scat- 

 tered irregularly over the wing ; costal edge golden brown ; cilia 

 white. Hindwings silvery white with an ochreous sheen; cilia 

 white. Abdomen and legs light ochreous; tarsal joints dusky. 



Alar expanse: 13-14 millimeters. 



Habitat : Cabima and Trinidad River, Panama. May. 



Type No. 14531, U. S. Nat. Mus. 



Very similar in general appearance to the species of the genus 

 Durrantia and about the size of D. acompsa Walsingham, described 



