PROC. ENT. SOC. WASH., VOL. 24, NO. 6, JUXE, 1922 139 



vein 4 to inner margin, the postmedial hardly defined above vein 5; terminal 

 black points on interspaces. Hind wings whitish irrorated with wood brown; 

 a distinct subterminal dark line. Wings below light buff; discal area of fore 

 wings suffused with fuscous; veins on hind wings darker. 

 Expanse 27 mm. 



Habitat. Quingua, Guatemala. 

 Type Cat. No. 25555, U. S. N. M. 



The only species of Diatraea I know with a distinct line on 

 hind wing. 



Diatraea fuscella, new species. 



Male. Head and palpi buff brown. Abdomen light buff irrorated above 

 with wood brown, the basal segments orange buff. Fore wings pinkish buff; a 

 white line from within cell to termen with a black point at end of cell, and a fine 

 cinnamon line on discal fold; whitish lines on costa, below veins 11, 8, 4, 3, 2, 

 below cell, and above submedian; from vein 6 an inbent series ot small clusters 

 of black scales forming a streak below vein 1 towards base; an outer series of 

 small clusters of black scales on veins, only slightly inbent from vein 7 to inner 

 margin; terminal black points on interspaces. Hind wings gray brown. Fore 

 wings below fuscous with pale margins; hind wings below whitish irrorated with 

 wood brown. 



Expanse 25 mm. 



Habitat. Carillo, Costa Rica. 

 Type Cat. No. 25556, U. S. N. M. 



f Diatraea maronialis, new species. 



Male. Head and palpi whitish gray. Thorax whitish with a medial avellane- 

 ous line and shading on patagia. Abdomen whitish, the two basal segments 

 dorsally ochraceous buff. Legs whitish. Fore wings light buff, the veins, two 

 lines in cell, and a streak below costa ochraceous buff; a black point at end of 

 cell. Medial space from inner margin to vein 2 cinnamon, limited inwardly by 

 a slightly darker curved line; base of interspaces from veins 2 to 4 gray, with 

 gray streaks on interspaces above; veins 6 to 8 terminally fuscous gray; short 

 ochraceous buff streaks subtermmally below veins 3 to 5; terminal black spots; 

 cilia white. Hind wings white shaded with light buff on inner margin; veins 6 

 and 7 brownish; terminal fuscous points towards apex. 



Expanse 26 mm. 



Habitat. St. Jean, Maroni River, French Guiana. 

 Type. Cat. No. 25557, U. S. N. M. 

 The apex of fore wings rounded. 

 A cotype in Collection Dognin. 



\J 



Diatraea umbrialis, new species. 



Female. Head white, the palpi laterally cinnamon buff; a medial buff line 

 on vertex. Collar white edged in front with wood brown. Thorax white; a 

 medial line and patagia wood brown. Abdomen white, the second and third 

 segments above cinnamon buff; legs white. Fore wings white, the veins wood 

 brown; two similar streaks on costa, two in cell, two between cell and fold, one 



