AMERICAN LKPIDOPTERA. 221 



color are found, and sometimes reddish specimens are met with. On 

 Long Island I have taken a form with pale ground color, and distinct 

 blackish markings tending to suffusion. I have never found a trace of a 

 median band such as distinguishes the following species. 



The larva of this species is known as the boll worm in the South and 

 the corn worm in the North. It is 1A inches in length, varying in color 

 from dark green to brown, striped with a darker shade of the ground 

 color ; dorsal stripe dark, with pale borders each side ; subdorsal still 

 darker, bordered by a pale stripe over ptigmata. On each side are 8 

 shiny piliferous spots from which arise brown hairs. The four on the 

 back of each segment are arranged in the form of a trapezoid, with the 

 parallel sides transverse with the body, shortest side to the head. The 

 two on each side are arranged about the stigmata, one above and a little 

 anterior to the opening, and the other back and on a line with them. 

 Head, legs and cervical shield brown. A few short hairs scattered over 

 the body. (From Ills. Agr. Rept., vol. 15, p. 232.) 



The moth expands li to 1 5 inches, 30-39 millim. 



Habitat. — United States and Europe. 



H. dipsaceous. Linn., Syst. p. 188, S. V. (Noctua); ph/ogophagu.s, Grt. & 

 Rob., Trans. Am. Ent. Soc. 1, 187; inter jaeens, Gr., Bui. Bkln. Ent. Soc. 3, p. 30; 

 var. maritima, Graslin: luteitinctus, Grt. Proc. Ac. Nat. Sci. Phil. 1875,427 (PI. 

 VIII, fig. 12). 



This species is common to Europe and America. I have carefully 

 compared specimens from all sections with those of Europe and find no 

 specific difference between them. Interjacenx is a form with the mark- 

 ings rather more distinct than usual, but not entitled to rank with mari- 

 tima (luteitinctus) as a variety. A varietal rank this last named form 

 is entitled to hold ; it has yellow secondaries, margined with black and 

 with a black discal spot, and has the black markings of primaries much 

 more distinct than in the type form. Ihere is sometimes a complete 

 black margin all round the primary, and a more decided variety it would 

 be difficult co imagine. 



. The larva is described by Mr. Coquillet in Pnpifio, 1, 56: "Body 

 naked, light green, a dark dorsal line, on each side of the body are two 

 white lines, 1(1 legs, head green, length 30 millim. One specimen taken 

 on grass assumed the chryalis form July 14. producing the imago on 

 the 5th of the following month." Gruenee says: Caterpillar yellowish 

 green, with brown red stripes ; subdorsal concolours bordered inferiorly 

 by a sinuous band of brownish violet ; stigmata! concolours bordered in- 

 feriorly with brown ; on each segment is a transverse reddish line : stig- 



(56) 



