68 PLUTELLIDD. 
thought some new blight had fallen upon their crops, but for- 
tunately subsequent years have not shown a continuance of the 
inordinate numbers of this species, which was probably checked 
by a timely increase of its parasitic foes. 
There are only four British species, of which the first three are 
very similar in markings. 
1. Cruciferarum, Zell. Ent. Ztg. 1843. p. 283.—Xylostella, 
Hiib.; Treit.; Step.; Dup.— ? maculipennis, Curt.; Step.; Sta. Alis 
anticis griseo-fuscis, saturate fusco punctatis, dorso dilute ochreo, den- 
tibus ¢ribus rotundatis plicam superantibus (9 dorso vix distincte di- 
lutiore, nebulis plicee fuscis), Exp. al. 7} lin. , 
Head, face, and palpi greyish-ochreous. Antennz whitish, annulated 
with fuscous. Anterior wings greyish-fuscous, spotted with dark fus- 
‘cous; the inner margin pale ochreous, with ‘Aree rounded projections 
across the fold (in the 2 the inner margin is less decidedly paler, and 
there are some fuscous spots along the fold); cilia grey, varied with 
fuscous. Posterior wings grey, with paler cilia. 
Always common, and sometimes very abundant among cab- 
bages and other Cruciferous plants; the perfect insect appears in 
May and August; the larva in June, July, and September. 
2. porrectella, Linn. S. N. (10). 540. 282 (1758); W. V.; 
Treit.; Step.; Dup.—WHesperidella, Witb.—Tesperidis, Haw.—Salle- 
niellus, Dahlb. (N. A. H.)  Alis anticis albidis, ochreo vel fascescente 
striatis, dorso dilutiore, vitta sinuata supra plicam saturate fusea, mar- 
gine postico fusco nigro-punctato. Exp. al. 7 lin. 
Head, face, and palpi whitish. Antennze whitish. Anterior wings 
whitish, streaked with ochreous or pale fuscous, the inner margin paler; 
a sinuated fuscous streak above the fold runs from the. base nearly to 
the apex; the hinder margin is fuscous, spotted with black, and along 
the costa and inner margin are some small dark fuscous spots; cilia 
whitish, varied with black. Posterior wings grey, with paler cilia. 
Common in gardens among Hesperis matronalis in May and 
July. ‘The larva feeds on that plant in April and June. 
3. annulatella, Curt. B. Bi. fo, 420 (1832); Step.—dicingulata, 
H.-S. <Alis anticis dilute griseo-ochreis, costam versus valde fusco- 
suffusis, dorso dilutiore, dentibus duabus plicam superantibus, vitta si- 
nuata plicee usque ad medium saturate fusca, margine postico fusco- 
punctato. Tixp. al. 8 lin, 
Head and face greyish-ochreous, Palpi pale ochreous. Antenne 
ochreous-fuseous. Anterior wings pale greyish-ochreous, much suf- 
fused with fuscous towards the costa; the inner margin paler, with ¢vo 
projections across the fold, the first in the middle, the other towards 
the anal angle; a sinuated dark fuscous streak runs above the fold to a 
little before the middle; the hinder margin is spotted with fuscous ; 
cilia pale greyish-ochreous. Posterior wings grey, with paler cilia. 
