AMERICAN LEPIDOPTERA. 



31 



Xylina oregonensis Haivey. 



1876, Harv., Can. Ent., viii, 55, Lithophane. 



1893. Saiith, Bull. 44, U. S. Nat. Mus., 228, Xylina. 

 Ground color a rather pale ashen gray, flown specimens darker, as the overlay 

 of white scales disappears. Head with a smoky frontal line. Collar with a black 

 suhapical line above a series of reddish scales. Patagise with a black lateral line. 

 Thoracic crest evident, feebly divided. Primaries with basal black streak ex- 

 tending well toward t. a. line., the space above it white and contrasting to the 

 costa. T. a. line geminate, blackish, included space paler than ground, very 

 strongly dentate in the interspaces. T. p. line geminate, obscure, with paler 

 included space, lost below the cell. S. t. line marked by a series of black spots 

 and a few following paler scales. A series of black terminal lunules. Orbicular 

 large, extending well below the median cell, tending to divide off, black edged 

 and paler filled, forming an obvious if not marked contrast. Eeniform large, 

 upright, a little constricted centrally, lower portion somewhat larger and tending 

 to a heel toward the orbicular, black margined, annulate with pale, centre dusky, 

 with red scales intermixed. The median shade darkens the space between the 

 ordinary spots, but is not otherwise marked below that point. Secondaries pale, 

 smoky gray, the fringes white, veins and a discal lunule darker. Beneath whit- 

 ish, powdery, a discal spot on all wings, disc of primaries blackish. 

 Expands 37-45 mm. = 1.48-1.80 inches. 



Hab.— Oregon ; Glenwood Springs, Colorado ; Volga, South 

 Dakota. 



One male and two females are at hand. The type in the 

 Edwards collection is so remarkably close to the georgii of the 

 same collection that, until I secured the examples now before me, 

 I was tempted to consider them as identical. As it is, while well 

 marked pale examples of georgii may closely resemble certain forms 

 of oregonemis, the question will rarely arise in actual practice. Dr. 

 Harvey has pointed out the form of the orbicular and the reddish 

 scales in the reniform as distinctive, and to this may be added the 

 pale costal region above the basal streak. The antennae of the 

 male are rather shortly ciliated. The size given by Dr. Harvey, 

 45 mm., exceeds by 3 mm. the largest example in my possession. 



Xylina Winnipeg n. sp. 



Head, thorax and primaries dull, powdery, dark ashen gray. Secondaries and 

 abdomen smoky. Head with a black frontal line, the tufting scarcely marked. 

 Transverse line of collar obscure. Thoracic crest scarcely marked and not 

 divided. Vestiture fine and flattened hair. No abdominal tuftings. Primaries 

 powderv, all the markings traceable, but none sharply defined. Basal line gemi- 

 nate, marked on the costa only. A very fine black line is traceable from the 

 base half way to the t. a. line. T. a. line blackish, geminate, outwardly oblique 

 and irregularly toothed in the interspaces, incomplete and hardly defined. T. p. 

 line obscurely traceable, geminate on the costa, lunulate in the intersi.aces. in 

 course parallel to the outer margin below vein G. S. t. line is a series of pale 



TRANS. AM. ENT. SOC, XXVII. AUGUST, 1900. 



