382 PEOCEEDINGS OF THE NATIONAL MUSEUM vol. 8« 



Type. — In United States National Museum. 

 Type locality. — Maroni River, French Guiana. 

 Food plant. — Unknown. 

 Remarks. — Known only from the unique male type. 



14. SIGELGAITA, new genus 



Genotype. — Sigelgaita chilensis, new species. 



Antenna of male bipectinate (in transilis with a few flattened setae 

 on the inner row of pectinations of the first five or six segments of the 

 shaft and also on the same segments) ; antenna of female shortly 

 pubescent. Labial palpus of male upcurved, of female porrect (the 

 second segment obliquely upturned, the third bent forward). Max- 

 illary palpus large, extending above front, flamboyant. Hind wing 

 with veins 7 and 8 anastomosing beyond cell ; 3 and 5 stalked. Eighth 

 abdominal segment with two pairs of thin hair tufts (very slight in 

 chilensis) . 



Male genitalia with apical process of gnathos small, bifid; harpe 

 with apex oblique; vinculum long; anellus with base of plate some- 

 what broadly sclerotized, arms moderately long, slightly twisted (in 

 transilis) \ aedeagus moderately stout, long; penis weakly scobinate. 



Female genitalia with signum weak or absent; bursa small and 

 finely scobinate; ductus bursae moderately long, finely scobinate 

 toward bursa and genital opening; ductus semmalis from middle of 

 bursa. 



Larva "blue or blue green" (Dodd), not banded or conspicuously 

 spotted ; two setae in group VII on abdominal segments 7 and 8. 



The larvae are solitary feeders in the fruits of Eulychnia^ Tri- 

 chocereus^ and Plutypuntia. 



Egg and egg-laying habits unknown. 



Remarks. — This genus is closest to Amalafrida but in many char- 

 acters more nearly resembles Nanaia. The maxillary palpi are long 

 in both Sigelgaita and Nanaia but are not so closely appressed to the 

 face in the former as in the latter. The labial palpi of the males 

 (upcurved in Sigelgaita^ porrect in Nanaia) readily separate the two 

 genera. 



KEY TO THE SPECIES OF SIGELGArTA 



1. Fore wing with a dark shade from outer end of cell to inner mar- 



gin; alar expanse over 30 mm 2 



Fore wing with no such marking ; alar expanse less than 30 mm. 



3. transilis, new species 



2. General color of fore wing dark gray (from Chile)- 1. chilensis, new species 

 General color of fore wing pale brownish fuscous (from Peru) . 



2. huanucensis, new species 



