NO. 1420. NE W so UTH A MERICAN MO THS—SCHA US. 341 



dark grey with darker strise, a white spot at base, a whitish postme- 

 dial space not reaching costa or inner margin, followed by a reddish 

 brown shade, inwardly curved from apex to vein 2, beyond which the 

 margin is butf with a dark-brown streak l)etween veins 4 and 5 and 

 one at vein 7, the two connected by a brown line. Secondaries 

 brownish grey. 



Expanne. — 47 mm. 



Habitat. — St. Laurent, French Guiana. 



Type.— Cat. No. 901.5, U.S.N.M. 



HEMIPECTEN NIVEOGRISEA, new species. 



Frons pale butf; vertex white; collar white, blackish in front. 

 Thorax yellowish buff, abdomen brownish buff; a black subdorsal 

 spot at base. Primaries greyish brown with darker irrorations and 

 faintly reticulated; some white points on costa; outer margin above 

 vein 8 pale yellowish buff', the veins broadly white; a brown terminal 

 shade between veins 4 and 5. Secondaries white, the veins terminally, 

 the apex, and a terminal line brown. 



Ex2)anse. — 39 mm. 



A female in the British Museum has the secondaries all grey. 



Habitat. — St. Laurent, French Guiana. 



Type.— Cat. No. 9016, U.S.N.M. 



HEMIPECTEN ROTUNDOPUNCTA, new species. 



Head, collar, and thorax white, mottled with grey; the patagia 

 tipped with ocherous; abdomen grey; primaries with the cell and 

 inner margin whitish, irrorated with light ))rown in the former, with 

 dark brown on the latter, a broad reddish brown shade below the cell; 

 a round reddish brown spot on middle of inner margin; the costal 

 margin greyish; the outer space pale reddish brown, irrorated with 

 whitish at apex; a subterminal round reddish brown spot })etween 

 veins 6 and 8. Secondaries greyish brown. 



Expanse. — 29 mm. 



Habitat. — St. Jean, French Guiana. 



Type.— Cat. No. 9017, U.S.N.M. 



HEMIPECTEN MARMORATA, new species. 



Body pale buff', the thorax thinl}- irrorated with dark brown. Pri- 

 maries pale buff', shaded with pale brown; the costa greyish with dark- 

 grey points on extreme margin; inner margin with fine transverse 

 pale-brown lines; dark-brown spots in and below cell from base to 

 subterminal space; beyond cell pale-brown oblique fascia from costa 

 toward outer margin. Secondaries pale brown, with darker reticula- 

 tions; a small dark spot at end of cell. 



Expanse. — 34 mm. 



Habitat. — St. Laurent, French Guiana. 



Type.— Cat. No. 9018, U.S.N.M. 



