LITHOCOLLETIS. 269 
costam applicata prope basim fusco-marginata, strigulis quatuor cost, 
tribus dorsi, introrsum fusco-marginatis, argenteo-albis, striola apicis 
nigra. Exp. al. 8 lin. 
Head saffron. Face and palpi white. Antenne fuscous, with whitish 
annulations. Anterior wings bright saffron, basal streak silvery-white, 
dark-margined on both sides; above it along the costa is a silvery-white 
streak, quite detached from the next costal spot and with a distinct 
dark margin; beyond are the ordinary four costal and three dorsal 
spots, all internally dark-margined, except the last costal spot, which is 
situated in the apex immediately above the apical black streak ; below 
it are some black scales in the cilia reaching to the anal angle. Pos- 
terior wings grey, with paler cilia. 
Taken among sallows in May and July, by Mr. Hodgkinson 
and Mr. C. 8. Gregson. 
7. nigrescentella, Logan, Ent. Trans. i. n. s. 182. pl. xv. f. 9 
(1851). Alis anticis fusco-nigris, linea basali utrinque fusco-marginata 
argentea, strigulis quatuor costs, tribus dorsi argenteis, prima coste 
cum prima ae secunda dorsi confluente, puncto apicis ovato nigro. 
Exp. al. 44 lin. 
Head brownish-black. Face and palpi metallic. Antennze brownish- 
black, the tip white. Anterior wings dark brown, inclining to black ; 
the silvery basal streak is dark-margined on both sides; on the costa 
are four silvery spots, and on the inner margin are three, none are 
dark-margined; the first pair of spots meeting form an angulated fas- 
cia, and the apex of the dorsal spot is continued towards the apex of 
the second costal spot; the apical black spot is slightly of an oval 
form (very nearly round). Posterior wings brownish-grey ; cilia paler, 
striking paler at their origin. 
A single specimen, taken near Morpeth in May, by Mr. Scott. 
8. irradiella, Scott, n.sp. Alis anticis olivaceo-fuscis, linea basali 
tenui abbreviata aryentea, strigulis tribus abbreviatis coste, tribus 
dorsi (ultima parva) argenteis, apice atro-squamato, Exp. al. 3 lin. 
Head black. ack and palpi silvery. Antenne dark fuscous, be- 
fore the apex white. Anterior wings olivaceous-fuscous, with a slender, 
short, si/very basal streak, and three short costal streaks and three dor- 
sal streaks silvery; the last dorsal streak is small and inconspicuous ; 
at the apex are a few biack scales, beyond which the cilia are rather 
iridescent ; beyond the dark hinder-marginal line the cilia are fuscous. 
Posterior wings dark grey, with paler cilia. 
A single specimen, taken ty Mr. Scott in the beginning of 
July, near Renfrew, amongst birches. Mr. Scott, with the view 
that the information to be derived from the sight of the unique 
specimens of this and the preceding species, might be more 
widely disseminated than if they remained in his own collection, 
has with extreme liberality placed them in mine. 
APG err el6 6S 
