THE ENTOMOLOGIST. 141 
Answers to Correspondents. 
A. R. Wilson.—Melanippe tristata ?—I would take it as 
a great favour if you would name the accompanying moth. 
The only moth that it resembles is Melanippe tristata, but it 
differs from it materially, being much lighter, and the black 
bands being narrower and more interrupted. I took about 
eighteen of them in June among junipers; they were abundant, 
but the wind was high, and | had great difficulty in catching 
them. They are all light; in fact I have sent you about the 
darkest of the lot. 
[Mr. Wilson’s Geometra appears to be a light-coloured 
specimen of Tristata, Linn. (not of Hiibner), I believe 
Baron von Nolcken first pointed out that two species were 
confounded under the name of ‘T'ristata by European ento- 
mologists. Dr. Staudinger has adopted his views, and the 
two species stand thus in the second edition of his ‘Catalogue 
of European Lepidoptera :’— 
No. 2689. Tristata, Linn. 8.N.X. 526, F. S. 385; Clerck. 
Icon. 1, 13; Wood’s Index, 566. Limbo- 
punctata, Nolck. Fn. 1, p. 270. 
No. 2690, Luctuata, Hb. Btr. 1, 1, 4, Y. p. 34 (1786; 
Non. Btr. 1, 4, 3, T.). Hastulata, Hb. Bu. 
Nachtr. p. 110 (1792); Molck. lc. p. 61. 
Tristata, Hb. 254. ? Pupillata, Thunb. 
Diss. Ent. 4, p. 62, fig. 13. 
Both species probably occur in Scotland.—Henry Double- 
day; Epping, May, 1875.) 
Edward Thomson.—Food-plant of Gonepterya Rhamni. 
—Can you, or any of your readers, tell me any other food- 
plant for Gonepteryx Rhamni besides the two buckthorns,— 
Rhamnus catharticus and R. frangula? 
[I have said in ‘ British Butterflies,” p. 147, that the two 
buckthorns are the only shrubs on which Rhamni is known 
to feed. I have no later information on the subject; and it 
will be interesting if another food-plant should be discovered. 
I have seen the females hovering over an exotic evergreen in 
my garden, but could not find that she deposited eggs.— 
Edward Newman. | 
E. C. Parker.—TVhe capture of Leucania unipuncta or 
