NORTH AMERICAN I.EPIDOPTERA. 193 



closely allied to the Eastern ereniitus, with which it agrees in tibial 

 and tarsal armature. No % has been available for dissection. 



S. ereniitus Hiib., Samml. ii, pi. 379, Agrius ; Wlk., C. B. M. Lep. Het. viii. 

 221, Sphinx; G. & R., Pr. E. S. Ph. v. 165, Sphinx: Beth., Can. Ent. i, 17; 

 Grt., Buff. Bull, i, 26, Agrius; Bd., Sp. Gen. Het. i, 90, Sphinx; Fyles.* Can.' 

 Ent. xi. 59, Sphinx; Butl., Tr. Zool. Soc. Lond. ix. 620, Lintneria ; Grt.. Buff. 

 Bull. Hi, 225, Lintneria; Fernald,® Sphing. New Engl., 46, Sphinx; Grt.. 

 Hawk Moths 45, Sphinx. 



sordida Harr., Sill. Journ. 36, 296, Sphinx; Wlk., C. B. M. Lep. Het. viii, 219, 

 Sphinx; G. & R., Pr. E. S. Ph. v. 165, pr. syn. 



Head, palpi and thorax brownish ash colored. A brown stripe extends along 

 the outer side of the palpi and a black line extends from the eye along under 

 the wing. A broad black stripe extends through the middle of the patagife, and 

 they are edged above with black. Metathoracic tufts black. The abdomen is 

 brownish asli colored with a black dorsal line, and a broad black band broken 

 by white on the edges of the segments along each side. Primaries brownish ash 

 colored with a white discal spot set on a black longitudinal dash, above wOiich at 

 the upper angle of cell is another, smaller white spot. There are heavy black 

 dashes between the veins from the lirst to the apex. A pair of blackish brown 

 stripes start from the costa a little outside of the base, run out to the median 

 vein where they form an acute angle and are usually obsolete, and then across 

 the hind margin near the base. Another, very indistinct pair crosses the wing 

 at outer fourth somewhat dentate on the veins and marked only on the costa 

 and inner margin. A subterminal line from costa near apex, accompanied by a 

 pale shade, becoming whitish below the apical streak, while the margining line 

 becomes black and somewhat irregular. Fringes brown, narrowly cut with 

 white. Secondaries black with a basal and narrow median gray band. Fringes 

 gray, darker at anal angle. Beneath, primaries dark ashy gray, with a faint 

 subterminal line slightly paler; secondaries dirty whitish with a black median 

 band, dentate on the veins, and a broad blackish marginal baud. Expands 2..50 

 —3.15 inches; 63— 79 mm. 



Hab. — Canada, Atlantic and Central States. 



This species is closely allied to lugens, but is smaller, much darker, 

 the longitudinal dashes heavier, the transverse lines with difficulty 

 traceable, and not nearly so strongly dentated on the veins — in fact 

 the lines are scalloped rather than dentate. 



Clemens evidently mixed up lugens and eremitus, his descriptions 

 applying throughout rather to the former than the latter. 



The spurs of median and posterior tibise are long and stout. The 

 fore tarsi have three outer long claw-like spines. The genitalia are 

 of the usual type. The inferior process of the supra-anal hook is 

 short and broad, the upper long, curved and flattened. The clasper 

 is corneous, broad, somewhat ladle shaped, with the mai'gin dentate 

 and serrate. 



TRANS. AMER. ENT. SOC. XV. (25) AUGUST, 1888. 



