OPORABIA DILUTATA. 163 
portion to its length, which is no more than from 
three-eighths to seven-sixteenths of an inch; the 
abdomen tapers rather abruptly towards the tip, 
which bears a single tapering spike which at its fine 
point has two most minute diverging pairs of hook- 
lets, affording a firm hold on the lining of the cocoon. 
The pupal surface is moderately smooth and glossy, 
and of brownish-red colour, darkest on the abdomen. 
The larve above described were reared by Mr. 
Hellins from eggs he received from Mr. C. G. Barrett 
at Pembroke. (William Buckler, October, 1581; 
Note Book IV, 62.) 
OPORABIA FILIGRAMMARIA. 
Plate CXXVI, fig. 6. 
On the 27th May, 1881, I received five larvee from 
the Rev. John Hellins, which came from Mr. R. Kay, 
of Bury, Lancashire. They were on heather and 
weeping willow. | 
They were about half an inch long, of uniform 
cylindrical substance. The head and plate on the 
second segment are brown, the head marked with 
darker brown on each lobe. The body is velvety, 
rather olive deep green, with a darker green dorsal 
stripe, a subdorsal line of bright canary-yellow, 
followed below closely by another much finer and 
thinner ragged line of the same yellow, and at a 
greater distance below by a spiracular line of paler 
bright yellow, equal in thickness to the subdorsal line, 
especially on the last four segments; the dorsal stripe 
is very faintly edged with yellowish, especially at the 
beginning of each segment; the tubercular warty dots 
are pale yellowish-greenish, each with a short bristle. 
The same dark green of the body extends broadl 
below the spiracular line, and is followed beneath by a 
broken stripe of faint pale dirty yellowish or whitish ; 
