K0.1456. NEW GEOMETRID MOTHS— WARREN. 407 



SrCULODOPSIS GRACILINEA, new species. 



Forewing. — Pale fawn-gra3% sprinkled with irregular faint brown 

 stria^; the lines slender, brown; first only visible below subcostal vein, 

 oblique inward, interrupted and wavy, at one-third; outer line from 

 middle of costa oblique outward to vein 7, then oblique and straight 

 inward; fringe concolorous. 



Illndwing. — With the outer line alone distinct, the costal area paler. 



Under side pale stone-grav, with short transverse stria? between veins. 



Thorax and abdomen concolorous with wings; head, shoulders, and 

 patagia pale yellowish; palpi above dark brown, below pale. 



Expanse of wings. — 20 mm. 



Locality. — Peru; 1 male. 



Type.—Oj^i. No. 9158, U.S.N.M. 



Family GEOMETRID^. 



SuTDfaiTiily CENOCHROMIIN^E. 



Genus DOLICHONEURA Warren. 



DOLICHONEURA NIGRINOTATA, new species. 



Forewing. — Pale lilac-gray, sparsely dusted with blackish scales; a 

 large black cell spot; outer line commences as an oblique black streak 

 from costa at two-thirds, which at vein 6 is angled and runs irregularly 

 lunulate-dentate to two-thirds of inner margin; it is closely followed 

 throughout by a dark or waved band rising on costa before apex, and 

 between veins 3 and 4 is preceded by a brown blotch; submarginal 

 line waved, pale, followed by a darker shade; fringe brown, preceded 

 in the male bj^ three or four black marginal dots below apex, in the 

 female by a sinuous black line as far as vein 5; in both sexes there are 

 traces of a waved inner line at one-fourth. 



'Hituhoing. — Similar; the basal line distinct, the marginal area 

 broader. 



Under side uniform pale gray, darker in the female. 



Face, collar, and palpi black; thorax and abdomen gray like wings; 

 forelegs in front blackish. 



Expanse of ivings. — Male, 40 mm.; female, 38 mm. 



Locality. — St. Laurent, Maroni River, French Guiana. 



Type.— Cat No. 9159, U.S.N.M. 



Genus OBELOPTERYX, ne^A^ genus. 



Foregoing. — Three times as long as wide; costa straight; curving 

 before apex; hind margin very oblique. 



LLindwing. — Narrow, hind margin curved; apex rounded; inner 

 margin short; hind margin slightly indented before anal angle. 



