———- 
170 GLYPUIPTERYGID”. 
the terminal joint longer than the second, pointed. Anterior wings 
generally elongate (in one species oblong), the posterior ovate-lanceo- 
late, with rather long cilia. In the anterior wings the apical vein is 
simple, below it are six veins at equal distances ; the secondary cell is 
complete; the apex of the submedian vein is thickened; the subdoy- 
sal has a rather long fork. In the posterior wings the elongate costal 
cell is suddenly narrowed ; the apical vein is simple, below it is a /ur- 
cate vein; the two last branches of the discoidal vein ave united at 
their origin. 
Lhave seen but three British species in this genus, though I 
have no reason to doubt that Betule//a truly belongs here; and 
I believe Mr. Curtis has specimens of a fifth species, which ap- 
peared to me too wasted to describe. The perfect insects appear 
‘of a very quict disposition, more especially on their first quitting 
the pupa state, and are more frequently met with on the wing 
after hybernation; pygmaana will remain motionless nearly 
throughout the winter; granited/a also hybernates, but I am not 
aware whether perdepidella and Betulella do likewise, though I 
think it extremely probable. 
The larvae of the two former only are known; they may be 
found in summer and beginning of autumn, mining the leaves of 
Solanum Dulcamara and Inula dysenterica respectively ; pygmeana, 
from the numerous large whitish blotches it makes, being very 
easily detected; both species construct delicate open network 
cocoons. 
The pale spot in the cilia of the anterior wings appears to indi- 
cate an affinity to the species of the genus Glyphipterye. 
The genus may be thus subdivided :— 
a, Anterior wings oblong. Species 1. 
aa. Anterior wings elongate. Species 2-4. 
l. perlepidella, Sta. Cat. p. 19 (1849). Alis anticis aurantiis 
nigro-suffusis, fascia fere recta ante medium lutea (squamis cceruleo-gri- 
seis in medio interrupta), fascia obliqua postica lutea (squamis ceeruleo- 
griseis valde interrupta), maculis duabus posticis coste luteis, apice 
ceruleo-atro. Exp. al. 5 lin. 
Head ferruginous. Face fuscous. Palpi yellowish. Antenne yel- 
lowish, annulated with fuscous. Anterior wings orange, much suffused 
with black, especially towards the base and along the costa, with a pale 
yellow nearly straight fascia before the middle (which appears somewhat 
interrupted by some bluish-grey scales in the middle); beyond it is a 
second pale yellow fascia more obliquely placed (the central portion of 
which is entirely suffused with bluish-grey, leaving only a distinct pale 
yellow spot on each margin); beyond this are two small pale yellow 
spots on the costa, which soon unite, and are continued as a bluish fas- 
cia nearly across the wing; the entire apical portion of the wing is 
