1912] Barnes and McDunnough — Geometrid Species 19 



Stage III. 



Head white, flat, narrowed posteriorly with broad dark-brown lateral stripe and 

 dorsal V-shaped mark. Body whitish green with broad brown dorsal and lateral 

 stripes; a subdorsal stripe, the continuation of the stripe on head, is distinct on first 

 two segments, indistinctly wavy on others. On 2d and 3d abdominal segments 

 traces of brown shading between subdorsal and lateral Unes; traces of a tliin, waved, 

 spiracular line; first pair of prolegs brown; anal claspers with brown stripe on anterior 

 margin. Length 9 mm. 



In late stages the dark dorsal stripe tends to disappear, the ground color becomes 

 browTi to brownish yellow and numerous light longitudinal strise appear, leading 

 to the markings of the following stage. 

 Stage IV. 



Head flesh-color, marbled with browTi, with broad brown lateral stripe. Body 

 light ocher, strongly mottled and marbled with brown. Markings indistinct and 

 diffuse, consisting of numerous longitudinal fines of which a light subdorsal one is 

 most prominent. A broken geminate dorsal black line is present on anterior and 

 posterior segments; the central segments are shaded laterally with black, and a faint 

 white supraspiracular stripe is xnsible; the lateral black band of the preceding stages 

 lies beneath the spiracular fold and is continued down the anterior margin of the 

 anal claspers, edged with whitish ventrally; tubercles II of abdominal segments 

 black, not prominent. Ventrally whitish with 4 browTi longitudinal lines. Legs 

 white, slightly mottled with brown, prolegs considerably more mottled. Length, 

 full grown, 22 mm. 



Food plant. Willow. 



Metanema quercivoraria Gn. 



Ovum. When first laid dirty green, turning soon red-brown, shiny, regularly 

 sculptured with an hexagonal design, the lines composing which are slightly raised; 

 in shape oval, considerably flattened at the micropylar end. Length 8 mm. Dura- 

 tion of egg stage 12 days. 

 Stage I. 



Very slender in shape. Head light browTi. Body whitish green to light brown, 

 fighter towards posteii.r end; a lateral row of 7 or 8 small black dots, one situated 

 near the posterior margin of each abdominal segment. Length .) mm. 

 Stage II. 



Head pale reddish, as broad as pro thorax. Body very slender, pale green, be- 

 coming lighter towards anal extremity and marbled laterally with dark brown on 

 first two and last three segments; a latei-al row of 8 black dots, commencing on meta- 

 thorax and situated near hind margin, on abdominal segments posterior to the 

 spiracles; a brown lateral line, sometimes broken, often continuous. Length 9 mm. 

 Stage III. 



Head pale green, marbled strongly with brown and with reddish-brown lateral 

 patch. Body pale green with faint traces of dorsal and subdorsal lines; abroad 

 purplish lateral stripe most marked on anterior and posterior segments where it is 

 broadest and marbled with white; black lateral spots as in previous stage; tubercle 



