Nov. s, 192 1 Pale Western Cutworm 319 



adfrontals and the other, lighter but wider parts, extending back to the 

 regions of the first epicranial setae. 



The thoracic shield is pale brown with a prominent whitish dorsal 

 stripe; there are small spotted dark brown areas toward the lateral 

 margins of the shield and several smaller brown spots on either side of 

 the dorsal stripe. 



The thoracic legs are tinged with brown, especially laterad; about the 

 base of the coxae and femora anteriorly are reddish brown stripes. 



The prolegs on segments 7, 8, 9, 10, and 13 are concolorous with body 

 and possess reddish brown crotchets. 



In the first part of this instar (PI. C, 3) there are distinct dorsal and 

 subdorsal stripes, the dorsal appearing as dark green and produced by 

 the pulsating dorsal vessel beneath the epidermis, and subdorsal as 

 brownish ; a broken whitish lateral stripe is quite distinct; in the advanced 

 stage of the instar with the exception of the tubercles there are no mark- 

 ings on the body, which becomes a bleached out yellowish color. 



The spiracles are black; setae, which are a reddish brown especially 

 in the head region, are single; tubercles a greenish brown but imme- 

 diately about the base of each seta there is a ring of lighter color; the 

 anal plate is marked by a transverse row of dark brown spots anterior 

 to the setae. 



PUPA 



Length 17.5 mm., width 5.7 mm. 



Typical noctuid pupa; labial palpa? exposed for entire length; maxillae, 

 mesothoracic legs and antennae of practically same length and extend- 

 ing almost to caudal margin of wings ; prothoracic femora exposed ; tips 

 of metathoracic legs visible and mesothoracic legs not extending to eye 

 pieces; dorsal cephalic margins of abdominal segments 5, 6, and 7 marked 

 with many small chitinized circular pits which extend to ventral surfaces 

 of segments but where they are fewer in number and less prominent. 

 The slightly bifurcate, blackish, rough cremaster ends in two stout often 

 incurved spines set far apart. The color of pupa varies from a light 

 straw color to a dark brown, according to age (PI. C, 4). 



ADULT ' 

 "Agrotis orthogonia" nov. sp. 



All the tibiae spinose. Antennae of the male strongly serrate. Middle of the 

 second joint of palpi black, its outer edge and tip, as well as the third joint, light. 

 Head and thorax gray. Anterior wings dark gray; all the markings well expressed; 

 half-line followed by a white shade line; basal space lighter than the other portions 

 of the wing; interior line forming a very long outward projection below the submedian 

 vein, and another shorter one on the costa, the line is white and distinct, bordered 

 with black on each side, between the submedian and subcostal veins it is straight, 

 except one lobe below the median vein, to which the concolorous, black edged clavi- 

 form spot is attached; subcostal median and submedian veins white, and contrasting 



1 The description of the adtilt is quoted from Morrison (z^). 



