164 INSECUTOR INSCITI^ MENSTRUUS 



Expanse 35 mm. 



Habitat. — Rio Trinidad, Panama. 

 Type.—Cdl. No. 24905, U. S. Nat. Mus. 

 Collected by Mr. A. Busck. 



Idalus tumara, new species. 



Female. — Palpi gray with a lateral black streak, and fringed 

 below with white, also with begonia rose at base. Head white. 

 Collar white with rose irrorations behind. Thorax white, the 

 patagia mottled with rose and with an orange yellow spot. 

 Abdomen above begonia rose, the last two segments white ; 

 dorsal white spots and a few segmental lines ; underneath 

 white ; legs mostly white ; fore tibiae gray ; fore coxse and 

 lines below shoulders rose color. Fore wings maize yellow ; 

 costal margin white, not reaching apex ; inner margin narrowly 

 white ; cilia white ; two short black streaks at base of costa ; 

 two black streaks in basal half of cell ; a shorter streak below 

 cell, and obliquely placed points above and below submedian ; 

 some rose color at base below cell, expanding on inner margin. 

 A postmedial transverse black fascia, cut by whitish gray 

 veins, the fascia inbent from costa to median and vein 5, then 

 vertical to inner margin and of uniform width; vein 11 is 

 white and there is a white line on interspaces below costal 

 vein ; below cell the fascia is edged with white ; a subterminal 

 black spot above vein 5. Hind wings white. Wings under- 

 neath white, the fore wings showing the black fascia in trans- 

 parency, also the subterminal spot. 



Expanse 34 mm. 



Habitat. — Rio Potaro, British Guiana. 



Type.—CsX. No. 24906, U. S. Nat. Mus. 



Near /. agrica Dyar. 



Received from Mr. S. E. Cassino. 



Prumala suanoides, new species. 



Female. — Body above mustard yellow, the vertex, collar and 

 dorsal tufts on abdomen darker shaded ; underneath yellowish 

 white. Fore wings mustard yellow ; costal edge faintly tinged 

 with lilacine ; indistinct grayish postmedial points above and 



