GEOMETRIDiE. ELECTRA. 239 



thereof, and always with an oblique streak at the apex, which is 

 acute, combined with the elongation of the body in the males, and 

 the large tuft at the apex, the simple antennae of both sexes, and 

 the long- rostriform palpi ; added to which, the females are always 

 smaller than the males, which is not the case with those of the genus 

 Polyphasia, which has recently been united with them : the larva 

 also differs. 



A. Anterior wings with a distinct central fascia : palpi rostriform. 



Sp. 1. comitata. Alls anticis subjlavis fulvo subnebulosis, fascid medio geminatd 

 sinuatd grised puncto ordlnario atro, lineoldque apicis fused. (Exp. alar. 1 unc. 

 4—5 lin.) 



Ph. Ge. comitata. Linne. — El. comitata. Steph. Catal. part ii. p. 135. No. 

 658 1 . Albin, pi. xlvii./. 79. 



Anterior wings yellowish, with a duplex somewhat griseous striga at the base, 

 a broad unsolid fascia in the middle of the edges, composed of griseous strigae, 

 and the middle with a fuscous or black dot towards the costa ; the hinder 

 margin is somewhat clouded with fulvous, with an undulated flavescent striga, 

 and at the apex is an oblique dusky streak : posterior wings pale, with obsolete 

 strigffi ; cilia all slightly spotted with fuscous. 



Some examples are of a much darker hue than others. 



Caterpillar varied with green and fuscous, with the head pale with two fuscous 

 streaks, the sides with a yellowish line ; it feeds on the wild orach (Chenopo- 

 dium album) :— the imago appears about the beginning of July. 



Rather local, but abundant where found ; especially in a field 

 near Battle-bridge, and near Stratford : it also occurs in Yorkshire. 

 « Strand-on-the-green."— i?et;. A. H. Matthews. " Newcastle."— 

 G. Wailes, Esq. 



Sp. 2. Populata. Alis pallida Jlavis, anticis fasciis duabus margineque postico 

 fuscis. (Exp. alar. 1 unc. 2—3 hn.) 



Ph. Ge. Populata. Linne.— E\. Populata. Steph. Catal. part ii. p. 135. No. 

 6582. 



Win"-s pale yellow ; anterior with a dark sometimes angulated fascia at the 

 base, a broad one in the middle, more or less clouded with yellowish, and 

 with some indistinct darker strigse; its anterior margin variable in form, some- 

 times dentate, the posterior bilobate in the middle; the hinder margin of the 

 wings has an oblique dark line at the apex, and from thence to the anal 

 angle is fuscous, with a faint undulated striga arising on the costa, and bor- 

 dered within with fuscous : cilia immaculate. 



