86 EUSEMIA LECTRIX. 
lies a slender horny piece thickened at the tips, in 
front of which is an erect bifid horny process, the 
upper division of whicli forms a slender and very 
acute hook. 
The species is a native of New Holland. The 
specimen here figured from a drawing made for us 
by Mr. Westnood, is in the collection of the Rev. 
F. W. IIoDe. 
EUSEMIA LECTRIX. 
PLATE IL Fig. 2. 
Bombyx lectrix, Linn. ; Cramer, Pap. Exot. pi. 192, fig, C. ; 
Donovans Ins. of China, pi. 43, fig. 2. 
This sub-genus was proposed by Dalman in his 
monograph on Castnia for the beautiful insect here 
figured. He considered it as very nearly allied to 
Agarista, and such is certainly the case, since they 
agree in the structure of the antennae, palpi, spiral 
tongue, veins, bridle, and general colouring of the 
wing . The principal difiference is in the structure 
of the fore legs, which are sufficiently unlike to 
warrant the separation. The anterior thighs (as 
they appear in E. maculatrlx) have not the strong 
brush of hairs, which is so conspicuous in Agarista, 
