LITHOSIID^. — LITHOSIA. 97 



A pair that I possess of this species I obtained from the col- 

 lection of Mr. Hall ; but their locality is unknown to me : I have 

 seen other specimens which were found near London. 



t Sp. 9. muscerda. Alls cinereis, anticis punctis aliquot nigris. (Exp. alar. 1 unc. 



4 lin.) 

 Ph. muscerda. Hufnagle. — Li. muscerda. Curtis, i. pi. 36. Steph. Catal. pt. ii. 



;5. 61. No. 6058. 



Antennae, head, thorax, and abdomen pale ashy-gray ; the apex of the latter 

 brownish : the anterior wings pale fuscous ; the costa straw-coloured at the 

 base ; towards the apex are three small black spots placed obliquely, and two 

 others towards the middle of the inner margin; the under side is ashy- 

 gray : posterior wings deep immaculate ashy-gray ; fringe of aU fuscescent. 



Two specimens only of this insect have, I believe, hitherto 

 occurred ; they were found in a marsh at Horning, Norfolk, floating 

 upon the water, in a ditch, by Mr. Sparshall. 



Sp. 10. quadra. Alis anticis maris lividis basi fulvis, costd cceruleo-nigrd ; foe- 

 minae luteis, punctis duobus atro-coeruleis. (Exp. alar. $ . 1 unc. 8 — 10. lin. : 

 $ 1 unc. 8 lin. : 2 unc.) 



Ph. No. quadra. Linne. — Don. ix. pi. 306. — Li. quadra. Steph. Catal. pt. ii. 

 p. 61. No. 6059. 



Antennae dusky-brown: eyes black; head, thorax, and abdomen ochraceous- 

 yeUow : legs blue : male with the anterior wings yeUowish-gray, with the 

 apex dusky, the base bright tawny yellow, with the costa blue-black : pos- 

 terior wings ochraceous-yeUow, with the base more or less dusky. Female 

 with the anterior wings rich citron-yellow, with two bright deep-blue spots 

 in the middle, one on the costa, the other placed obliquely towards the base 

 of the inner margin : posterior paler, immaculate. 



Var. /S. Male with the anterior wings of an uniform deep fuscous, with the 

 usual marginal spot at the base. 



Var. y. Female without the blue spots on the anterior wings. 



Caterpillar dusky ; the back marked with red dots and a black spot, the sides 

 with black lines: it feeds on the oak, birch, fir, &c. towards the end of May; 

 and changes about the middle of June to a black pupa in a strong web ; and 

 towards the middle of July the imago appears. 



Extremely abundant in certain seasons in the New Forest near 

 Brockenhurst, and near Chigwell-row in Epping Forest; it also 

 occurs, though more sparingly, at Darenth, Birch, and Coombe- 

 woods. " Very common at Kimpton and Amesbury last season." 

 ^Rev. G. T. Budd. « Lowestoft, Suffolk."— fr. C. Hewitson, Esq. 



Haustellata. Vol. II. Lst March, 1829. h 



