76 PLATE CCCLIV. 



The two black femicircles on the thorax and double row of trian- 

 gular fpots at the ends of the pofterior wings, are mentioned as pecu- 

 liar chara6ters of this fpecies ; the latter is, hov/ever, liable to con- 

 fiderable variations, the fpots being in general, crowded in a con- 

 fufed feries, and forming an irregularly interrupted line. It maybe 

 eafily diftinguiflied from the Phalasna Aprilina by its fuperior fize, 

 the colours are lefs vivid, and it is deftitute of the broad tranfverfe 

 bar, which is confpicuous on the upper wings of Phalasna Aprilina. 



The larva is fmooth, of an afh colour v/ith fquare brownilh fpots. 

 It feeds on the Oak. 



F I G. II. 

 PHAL^NA LUSORIA. 

 SPECIFIC CHARACTER 



AND 



STNONTMS. 



Thorax crefted. Wings incumbent, greyifh ; a black lunar mark, 

 with a fmall approximate point in the middle of the firft pair, and a 

 triangular fpot of the fame colour on the anterior part of the thorax. 



Phal^na Lusoria : criftata alis incumbentibus glaucis : lunula 

 thoraceque antice atris. Linn. Syjl. Nat. 2. 831. 

 74. — Fab. Ent. Syji. T. 3. p. 2. /». 64,^/). 179, 



Phalaena Luforia : alis primoribus glaucis : lunula thoraceque ante- 

 rius ferrugineis. Gmel. Linn. SyJi. Nat» T. i . 



p'S' p' 2441. j//>. 74. 



From the coliedlion of Mr. Francillon. 



PLATE 



