(oPiy 3) 
or Shoreham). Eggs were obtained, and a part of the moths 
resulting from the cross I now exhibit. Mr. Fletcher adds 
that the hybrids paired inter se and the larve duly hatched. 
“The true 7%. ochsenheimert shows considerable sexual 
dimorphism, the male being smaller than the female, the 
sixth spot (i.e., the lower of the outermost pair of spots) 
being almost obsolete, with a distinct concavity on the outer 
margin of the hindwing, the concavity being largely accen- 
tuated by the widening of the rather broad black margin at 
this area. The females show the same peculiarities, but less 
markedly, than the males, 
“The males of the cross exhibit very markedly the char- 
acters of the male of 7. ochsenheimeri, the sixth spot in all but 
two of the male specimens being much reduced, and in a 
majority of the specimens the hindwing is like that of 
Z. ochsenheimert. On the other hand, the females, with two 
exceptions, strikingly resemble 7. filipendulw, and the hind- 
wing character is almost entirely lost. 
“It is evident that the theory that allied species are not 
fertile inter se does not hold good for the genus Zyyena, 
unless we are to unite all the Zygenid species into one, 
which is absurd.”’ 
Mr. Tutt also showed, for Mr. J. B. Hodgkinson, a number 
of obscure British Micro-lepidoptera, many of which had been 
regarded as new species. The validity of the determinations. 
was questioned by Lord Walsingham, Mr. B. A. Bower and 
others, and the firstnamed speaker strongly deprecated the 
practice of positively recognizing or describing such obscure 
forms, particularly when British, from single or worn speci- 
mens. <A suffused aberration of a Gelechiid, taken at 
Witherslack, and described under the name of Lita inter- 
mediella (Knt. Rec., ix, p. 86), was referred to Lita fraternella. 
Mr. Barrett showed specimens of the true Platyptilia tesse- 
radactyla, L. (= P. fischeri, Zell.) new to the United Kingdom, 
and taken in Co. Galway by Mr. W. F. de V. Kane and the 
Hon. R. KE. Dillon. The species was widely distributed in 
N, and Central Europe, often occurring at a considerable 
elevation, and was said to feed on Gnaphaliwn. 
Mr, Tutt stated that he had found it to be common in the 
