INSECUTOR INSCITI^ MENSTRUUS 163 



yellow; inner margin yellowish; veins terminally finely yel-_ 

 lowish. Hind wings below black; base of costa and terminal 

 line yellowish. 



Expanse 25 mm. 



Habitat. — Trinidad, Paraguay. 



Type.—Cdii. No. 23904, U. S. Nat. Mus. 



Received from Mr. Pedro Jorgensen. 



Family ARCTIIDTE 



Idalus panamensis, new species. 



Male. — Palpi dark brown above, a lateral white line, and 

 drab fringe below. Head and collar light drab ; some white 

 on frons. Thorax and patagia cinnamon drab; some orange 

 hairs on patagia in front and outwardly. Abdomen above 

 ochreous orange; anus and venter white. Fore wings with 

 basal area cinnamon drab ; costal and inner margins irreg- 

 ularly whitish ; gray and orange hairs at base ; an antemedial 

 white point; pale luteous hairs at base of inner margin and 

 some black scaling medially; a fine dark line from cell be- 

 tween veins 2 and 3 to postmedial shading; a similar line 

 below vein 2 from cell to near termen, also a line above sub- 

 median vein, and one below submedian, the latter shorter and 

 medial ; the veins on basal area slightly darker than ground 

 color ; a transverse straight black line just beyond discocel- 

 lular; a large whitish semihyaline space beyond cell to post- 

 medial shade this space extends from subcostal and base of 

 vein 7 to vein 3, its lower edge irregular, its outer portion with 

 diffuse drab postmedial shadings and streak projecting in- 

 wardly, the shading outwardly lunular, with a dark spot in 

 each lunule on the otherwise light drab terminal space; the 

 veins on outer area finely dark brown ; faint darker vertical 

 streaks on interspaces terminally. Hind wings white; inner 

 margin pale yellow ; veins 2, 3 and 5 drab ; tips of veins darker ; 

 cilia tipped with fuscous gray. Wings below white; fore 

 wings with a black crescent on discocellular, the latter white, 

 also three subapical black spots, the largest between veins 

 5 and 6. 



