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adds that the hybrids (or mongrcls) paired inter se and the 
larve duly hatched. You will observe that the true 
Z. ochsenheimert shows considerable sexual dimorphism, the 
male being smaller than the female, witha distinct concavity 
on the outer margin of the hind wing, which is largely 
accentuated by the reddening of the rather broad black 
margin at this area. The females show the same peculi- 
arities, but less markedly than the males. It is well seen 
that the males of the cross exhibit very markedly the 
characters of the male ochsenheimert, the sixth spot in all but 
two of the specimens being much reduced, and in a majority 
of the specimens the hind wing is like that of Z. ochsenheimert. 
On the other hand, the females, with two exceptions, are 
strikingly Z. filipendula, and the hind wing character is 
almost entirely lost.” 
On behalf of Mr. Prince, of Lancashire, Mr. Tutt exhibited 
a considerable number of specimens of Lepidoptera from the 
Cheshire coast, and contributed the following notes upon 
them : 
‘The insects which I exhibit for Mr. Prince were captured 
on the Wallasey sand-hills. The following particulars about 
them may be interesting. 
‘‘ Nyssta zonavia.—These insects are remarkably uniform 
at first sight, and yet when carefully examined exhibit con- 
siderable variation. In some specimens the darker areas 
of the wings are but faintly developed, and the specimens 
have a very pallid and unicolorous appearance. At the 
opposite extreme the transverse basal line is continued up to 
the costa, and the space between this and the next trans- 
verse line is filled in with dark grey shading, forming a more 
or less distinct transverse band. In other specimens the 
basal transverse line is almost or quite obsolete, and leaves 
the whole area from the discoidal lunule to the base of the 
wing with only the two dark longitudinal neurational 
markings. On the hind wings there is an equal range of 
variation, the palest having scarcely any trace of the three 
transverse bands, which are very distinctly marked in the 
darkest specimens. The apterous females show no im- 
portant variation. 
““Triphena orbona (comes).—A moderately variable series, 
approaching the range of variation found among the Scotch 
specimens. Of the colour aberrations you will notice var. 
adsequa (pale grey), ab. grisea (dark grey), ab. ochrea (pale 
ochreous), and ab. vufo-ochrea (pale ochreous tinted with red) ; 
at the same time it will be observed that two or three 
