Hybridising T. bistortata and T. crepuscularia. 19 
(2) T. ab. delamerensis—These were the imagines from 
pupz bred from ova laid by a $ 7. ab. delamerensis, cap- 
tured in the York district. The eggs hatched May 
30th—31st, 1896. Imagines of the typical form appeared 
with those of the melanic form from this batch of eggs; 
there were no real intermediates between the two forms; 
emergence took place between February 26th and April 
27th (few came out before March 9th and some as late as 
April 27th). 
(3) ZL. crepuscularia—These were reared from ova of a 
female from the York district, the ova having hatched 
June 3rd—4th, 1896. The melanic form appeared w 
the type in almost equal proportions. The imagines 
emerged between March 7th and the end of the first week 
of April. 
Selections from these three broods from which the 
parents were chosen, together with a brood of Tephrosia 
bistortata that emerged in July, 1897, to show the differ- 
ence between this second brood and the first brood (7. 
ab. abietaria, Haw.) were exhibited at the meeting of the 
Ent. Soc. of London, Oct. 6th, 1897. The following are 
my notes on the specimens exhibited :—(1) Tephrosia 
bistortata—From Clevedon (Somerset); those exhibited 
emerged between February 17th and March 8th, 1897. 
These are of the well-marked southern form, with suffused 
ochreous ground-colour, distinct -basal and subterminal 
bands, and strongly shaded on either side of the wavy 
antemarginal line=ab. alietaria, Haw. 7 $ and 10 9. 
The latter more strongly banded and less suffused than 
the males. 
(2) 7. bistortata (second brood).—Progeny of specimens 
of the previously described brood; emerged between June 
7th and June 24th, 1897. These exhibit the dead grey 
colour and ill-developed markings that characterise the 
second brood of the species, known as ab. consonaria, St. 
These are especially useful as showing the progeny of 
T. bistortata, uncrossed by 7. crepuscularia. 
(3) Z. crepuscularia.—From York ova, bred between 
March 7th and the end of the first week of April. These 
are of arather more suffused form than those from our 
southern woods; this is probably due to the influence of the 
melanism that has produced ab. delamerensis, a form that 
probably appears as a part of every brood in the York 
district whence these were obtained. The use of this 
