76 FIRST ANNUAL REPORT OF 



nerves, while the outer line is plain and much paler ; it is arcuated superiorly and inversely ob- 

 liques for two-thirds its width. Orbicular and reniform spots of normal shape, having a fine, dark 

 cumulation^ which is however obsolete in both, anteriorly ; the orbicular is concolorous with the 

 wing, whilst the reniform has a dark inner shade with a central light one, and forms with the tran3- 

 verse posterior a somewhat oval spot which is also dark. Median shade dark and distinct inte- 

 riorly, shading off and becoming indistinct in center of wing, and quite dark between the two spots, 

 giving them a fair relief. Subterminal line single, light, acutely and irregularly dentate, with an 

 inner dark shade, but warmer than that of terminal space. Terminal line very fine, almost black, 

 slightly undulate. Fringes of same color as wing, with alight central line, having an outer dark 

 coincident shade. A dark costal spot in basal area ; at termini of the usual lines, and two light 

 ones in subterminal space. In some specimens one or two fine dark sagittate marks are discernable, 

 and also a fine black claviform mark. Iliad wings : whitish, with a darker shade along posterior 

 margin. Under surface of fore wings somewhat lighter than the upper surface and pearlaceous 

 interiorly, with a smoky arcuated band — more definite near the costa than elsewhere — and a toler- 

 ably distinct lunule. Under surface of hind wings concolorous ; slightly irrorate with brown ante- 

 riorly and posteriorly, and with an indistinct lunule and band. Antenna:, prothorax, thorax, 

 tegulaj and body of same color as primaries, the prothorax having a darker central line, and in 

 common with the tegula> a carneous margin. Under surface lighter ; legs with the tarsi spotted. 



This moth, in its general appearance, bears a great resemblance to Hadena chenopodii, but 

 the two are found to differ essentially when compared. From specimens of H. chenopodii, kindly 

 furnished me by Mr. Walsh, and named by Grote, I am enabled to give the essential differences, 

 which are: 1st. In A. Cochranii, as already stated, the middle area exceeds somewhat in width 

 either of the other two, while in H. chenopodii it is but half as wide as either. 2d. In the Agrotis 

 the space between the spots and between the reniform and transverse posterior is dark, relieving the 

 spots and giving them a light appearance, whilst in the Hadena this space is of the same color as 

 the wing, and the reniform spot is dark. The claviform spot in the Hade.nais also quite prominent, 

 and one of its distinctive features, while in the Agrotis it is just about obsolete. 



There are specimens that seem to be intermediate between these two, but all those bred by 

 me, both male and female, were quite constant in their markings, and their intermediates will 

 doubtless prove to be distinct species or mere varieties. 



Larva — Length 1.07 inches. Slightly shagreened. General color, dingy ash-gray, with 

 lighter or darker shadings. Dorsum light, inclining to flesh color, with a darker dingy line along 

 its middle. The sides, particularly along the sub-dorsal line are of a darker shade. On each seg- 

 ment there are eight small, black, shiny, slightly elevated points, having the appearance of black 

 sealing-wax, from each, of which originates a small black bristle. The stigmata are of the same 

 black color, and one of the black spots is placed quite close to them anteriorily. Head shiny and 

 of the same dingy color as the body, with two darker marks, thick and almost joining at the uppe r 

 surface, becoming thinner below and diverging toward the palpi. The upper surface of first seg- 

 ment is also shiny like the head. Ventral region of the same dingy color, but lighter, having a 

 greenish tinge anteriorly and inclining to yellow under the anal segment. Legs of same color. It 

 has a few short bristles on the anterior and posterior segments. 



Chrysalis. — Length 0.70 of an inch. Light yellowish brown with a dusky line along top of ab- 

 domen. Joints, especially of the three segments immediately behind the wing-sheaths, dark brown. 

 The brown part of these three segments, minutely punctured on the back. Eyes dark brown, and 

 just above them, a smaller brownish spot. Two quite minute bristles at extremity. 



Described from numerous bred specimens. 



THE CLIMBING CUT-WORM— PI. 1, Figs. 5, 6 and 7. 

 (Larva of the Climbing Rustic, Agrotis scande?is,±l. Sp.) 



This is another of the most common species having the climbing 

 habit. It occurs in at least five different States, for Mr. Walsh informs 

 me that it is the species referred to by Mr. Townley, of Marquette 

 county, Wisconsin, and I have found it with the same pernicious habit 

 on Mr. Jordan's nursery at Si. Louis, in our own State; while it was 

 even more numerous, last spring, in North Illinois, North Indiana and 

 West Michigan, than the preceding species, as I am informed by Mr. 

 'Cochran, and by Mr. H.D.Emery, of Chicago, who both sent me great 

 numbers of specimens during the last week of April. The following 



