242 [Aprii. 



Beneath, the apex and hind-wings are yellower and unmottled in 

 the present species, while in Tagis both are considerably mottled. 



From Gharlonia, its nearest ally, the ^ differs in that its colour is 

 quite white, while in the former the wings are very faintly tinged wdth 

 yellow\ The apical patch, which is brownish in Charlonia, extending 

 down the posterior margin nearly to the anal angle, and being dis- 

 tinctly spotted, is, in JPechi, grey, scarcely reaching more than half 

 way down the posterior margin, and is wdthout the transverse spots. 

 The discoidal spot in Charlonia is large and dark brownish, but in our 

 species it is decidedly smaller and pale grey, also the anterior margin 

 is not pink, as in Charlonia, and the fringes of the fore-wings, which 

 in the latter insect are tinged with yellowy and intersected witli 

 brownish, are in this w^hite. 



Beneath, the apical patch and hind-w'ings are greener in Pechi, 

 than in Charlonia. The white of the fore-wdngs in the latter is tinged 

 with yellow, especially by the costa, but in ours it is pure white, also 

 the discoidal spot, which in Charlonia show^s through very distinctly, 

 and is almost black, appears through in Pechi very faintly, and is pale 

 grey with a whitish crescent in it. The fringes of the fore-wings have 

 in the present species a slightly greenish hue beneath, but in Charlonia 

 have a good deal of pink in them. Eurther, the hind-wings of the 

 former have only a single, small, whitish, central spot, w^hereas in the 

 latter insect there are several whitish spots in the hind-wings. 



BOMBTX LOTI, Var. ALGERIEIS^SIS. 

 I believe this pretty little Bomhyx to be only a local form of loti, and have there- 

 fore so named it, as it is certainly worthy of being a named variety. The S is of an 

 uniform reddish-brown ; the anterior-wings having a central white spot, and a 

 sharply and continuously toothed white line, starting from beyond the middle of the 

 inner margin, and reaching nearly to the costa, somewhat in front of the apex. 



The ? is also unicolorous red-brown, but with scarcely even an indication of the | «"' 

 central spot, and no transverse line. 



Expanse of wings, S j 27 — 28 mm. ; ? , 40 mm. 



A fair series of this insect was taken at Guelma in June, two ^ 

 and one ? being now in my cabinet. 



The ^ differs from loti in the white transverse line being con- 

 tinuously toothed, while in the latter insect it is not toothed at all. 

 The difference in the ? is more marked, as in loti the colour is uniform 

 greyish, but in var. algeriensis it is entirely reddish-brown. 



BOMBYX Staudiis'geei, n. sp. 

 Alee omnes pallide Jiavo-ochj'acecB, nonfasciatce. 

 Of this new Bombyx several larvse were found at Lambessa in March, which 



