GEOMETRlDiE. CI D ARIA. 



21T 



Very abundant in May and August within the metropolitan 

 district : also found in the New Forest, Devonshire, &c. " Epping.'^ 

 —Mr. Douhledmj. " Raehills, common."— iJ^w. W. Little. " Wes- 

 ton-on-the-green;'— iZ^u. A. H. Matthews. " New Town."— T. C. 

 Heysham, Esq. 



Sp. 6. latentaria. Cinerea mgro pulverulenta, strigix undatis fuscescentihus, et 

 albidis,fascid medio saturatiore, puncto atro. (Exp. alar. 1 unc. 1 — 3 lin.) 



Zerynthia ! * latentaria. Curtis, vii. pi 296.— Ci. latentaria. Steph. Catal. 

 part ii. p. 130. No. 6545. 



Cinereous ; minutely freckled with black ; anterior wings slightly ochraceous, 

 with several waved strigae, with an indistinct fascia at the base, and. a broader 

 one in the middle, edged on both sides with a whitish line, crenate without, 

 and with a small black dot towards the costa : posterior wings dusky-ash, 

 with several undulated paler strigse towards the hinder margin, which is 

 darkest, and a black dot- near the middle; on the hinder margin of all is a 

 series of geminated black dots: the cilia are ashy, spotted with fuscous. 



Apparently not uncommon in some parts of the north : I have 

 received many examples from the vicinity of Ambleside. 



Sp. 7. Salicata. AUs anticis albo cinereoque variis, fasciis strigisque obsoletis 



fuscescentihus. (Exp. alar. 1 unc. 1 lin.) 

 Ge. Salicata. Hiibner.—Ci. Sahcaria. . Steph. Catal. part ii. p. 130. K'o. 6544. 



Leaden-gray ; the anterior wings varied with cinereous and white, with obsolete 

 fuscescent striga?, of which the central one is broadest, with its middle paler, 

 and having a small black spot towards the costa; behind this fascia is an un- 

 dulated whitish line, adjoining which, towards the apex, is a faint duplex 

 fuscescent spot : the ciha are pale fuscous, with darker spots, with a row of 

 very minute black spots at the base. The posterior wings are pale cinereous, 

 with paler transverse waved strigae. 



The caterpillar feeds on the willow ; and the imago appears about the end of 

 June. 



Closely allied to the preceding insect. 



* Zerynthia was proposed, in 1816, by Ochsenheimer, for a genus of Lepi- 

 doptera, previously (in 1808) characterized by him as a section in his Schmetter- 

 linge, vol. i. pt. 2. p. 124. containing Papilio Rumina Linne and its congeners, 

 and republished by Mr. Children, in the Philosophical Magazine for 1829:— 

 notwithstanding which we have the same name again employed to designate 

 the present genus in the same order in 1830, in a work which, from its pre- 

 tensions, ought to give the most correct information with regard to genera and 

 their terms. 



Haustellata. Vol. III. 31st May, 1831. o 



