246 HAUSTELLATA. — LEPIDOPTERA. 



but in addition may be mentioned the breadth and rotundity of the 

 wings, the ground colour of which is white, more or less maculated 

 with black, the spots usually disposed in a somewhat regular striga 

 towards the hinder margin, a little behind the middle : the larvae 

 are stout, sluggish in motion, and construct a slight web in which 

 to change to pupae. 



Sp. 1. Ulmata. Alis albis,fasci& basi, alterdque communi pone medium maculari 

 fuscis, luteis plumbisque argenteo parum irroratis. (Exp. alar. 1 unc. 6 — 10 



lin.) 

 Ph. Ulmata. Fabricius.—Don. ix. pi. 293. /. 1.— Ab. Ulmata. Steph. Catal. 



part ii. p. 136. JVo. 6589. 



Wings white, the anterior fuscous-brown at the base, with a lutescent striga 

 and some silvery clouds ; a little behind the middle, towards the costa, a large 

 rounded lead-coloured spot, generally with a pale centre and a brownish iris ; 

 behind this is a flexuous striga composed of confluent lead-coloured spots, and 

 terminating on the inner margin in a large blotch, fuscous in the centre with 

 silvery clouds, and luteous on the inner margin; immediately before the 

 origin of this fascia, on the costa, is a somewhat triangular fuscous spot ; on 

 the hinder margin are other lead-coloured spots : posterior wings with one or 

 two discoid spots, and a fascia behind the middle resembling that on the an- 

 terior wings : body luteous, with various rows of black dots. 



Extremely variable: in some instances the wings are clouded throughout with 

 lead colour, arising from the spots of which the strigis are composed becoming 

 confluent and diffused ; in other cases the spots are nearly obUterated, and all 

 intermediate varieties occur. 



Caterpillar greenish-blue, with numerous slender black lines, and the head and 

 tail black ; it feeds on the elm :— the imago appears about the middle of June. 



Extremely abundant, though very local, throughout the north of 

 England ; but very rare near London. I possess a specimen cap- 

 tured on Shooters'-hill, and have seen others which were taken 

 near Hackney. " Near Dudley." — Rev. W. T. Bree. " Baron- 

 wood, Arraathwaite." — T. C. Hey sham, Esq. " Gibside, Meldon- 

 park, Keswick." — G. Wailes, Esq. " Hull, Halifax, Dinsdale- 

 wood, near Middleton-one-row." — W. C. Hewitson, Esq. 



Sp.*2. Pantaria. Plate 32. f. 1. — Alis omnibus albidis, strigd obliqud maculari, 

 maculis ad marginem tenuiorem majoribus, anticis basi lutescentibus. (Exp. 

 alar. 1 unc. 8—9 lin.) 



Ph. Ge. Pantaria. Linne.— Ah. Pantaria. Steph. Catal. part ii. p. 136. A^o. 6588. 



All the wings whitish; the anterior pubescent at the base, with an obscure 

 dusky ring on the disc towards the costa, behind which is a row of fulvescent 



