118 



VI. Observations on North American Moths 



BY LEOlf F. HAEVEY, A. M., M. U. 

 [Read before this Society, June 5, 1874.] 



NOCTUAE. 



Agrotis volubilis Harvey. 



$ . — This species ia allied to the European A. valligera, differing by its 

 leather-brown, not olivaceous color, and by the obsolescence of the subter- 

 minal line. Eyes naked, all the tibiae spinose, antennae ciliated, palpi exter- 

 nally dark brown, nearly black, internally much lighter, head light brown, 

 thorax very pale with a brown collar; one segment of the abdomen, near the 

 thorax, quite brown, with the rest and anal tuft light brown ; beneath darker, 

 with the sides approaching to black. Basal half-line irregular, black ; t. a. line 

 thrice outwardly convex, lower convexity being very acute, passing far beyond 

 the other convexities ; a broad black band arising from the body intersects and 

 crosses the t. a. line, being longer than the similar line in A. valligera; the 

 t. p. line is evenly scalloped outwardly, being fainter than the other lines ; 

 terminal line geminate, inner dark and outer light shaded ; subterminal space 

 darkly shaded, a third below the costal border dark intensified above the spots. 

 The orbicular spot is broader and more even than in A. valligera, having a 

 light center; reniform regular, whilst in A. valligera it is somewhat scroll- 

 shaped ; the space between the spots is nearly black, in A. valligera it is a 

 rather light brown ; fringes concolorous. Beneath, cinereous, costa dark, ter- 

 minal line present. Secondaries whitish, with superior and posterior portions 

 shaded with fuscous, terminal line geminate. Beneath pale shaded, with discal 

 spot ; t. p. line and terminal line obvious, fringes white. 



$ . — Both the wings and body parts darker, blackish, with a dark purjile tinge ; 

 markings about the face blackish brown ; thorax purple-gray, with a black 

 collar. The space between the body and the reniform spot is nearly black, the 

 orbicular spot is nearly twice the length and much narrower than in the S , 

 with dark center, and clearly defined black margin, reniform more irregular and 

 darker. The terminal line geminate. All the other lines nearly obsolete, 

 slight transverse markings beneath. Secondaries darker than A. vailigera — 

 a trace of discal spot. 



Expanse, ^^Q, 37; 6 35 m. m. Hah., Buffalo (Frank Zesch) ; 

 New York (C. T. Robinson). 



