1869.] 259 
Mr. E. Saunders exhibited a good example of Pachetra leucopTima, taken by Mr. 
N. E. Brown from ofif a gas-lamp at the Red-Hill Station, on 14th May, 1868. 
Mr. Home (present as a visitor) narrated an account of the antagonism 
existing between rats and scorpions in India. He had confined the animals under 
a glass case, in order to observe their movements, and found that the rat invariably 
disabled the scorpions by seizing them by the tail, after which it proceeded to pull 
oflfthe legs ; but did not eat the creatures. 
Mr. Pascoe made some observations on the genera Aprostoma, Mecedanvm, and 
Qempylodes regarding the possible identity of the genera. He exhibited a speciea 
of Hemiptera (perhaps an Odontoscelis) from Toulon, which he could not find 
described in any work. 
The Secretary read a letter addressed to him by Dr. Butterfield, P. 0. Box 
No. 1473, Indianopolis, Indiana, wherein the writer expressed his desire to give a 
tolerably complete collection of the Lepidoptera of his State, in exchange for a 
similar one of British species. 
Mr. Butler communicated a description of a new species of Hestina from India, 
which he proposed to call H. Zella. It bears a strong mimetic resemblance to 
Danais Juveyita. 
Professor Westwood exhibited drawings of a minute insect belonging to the 
family Aphidce, which was causing great damage of the vineyards of the south of 
France, and also occurs in England. He had first became acquainted with the 
creature in 1863, when he received some vine-leaves attacked by it. A puncture 
being made in the upper cuticle, the wounded part thickens, bulging out beneath, 
and forming a concavity above, round the edges of which smaU imbricated scale- 
like growths are produced, closing over the cavity ; in this nidus the insect pro- 
duces its young. In the spring of last year he read a paper on the subject before 
the Ashmolean Society, and applied the name of Peritymhia vitisana. But it is under 
other circumstances that the greatest damage is done. The same species (for he 
could detect no difiereuce whatever) is subterranean also, then sucking the ex- 
tremities of the young root-fibres, thus threatening the life of the plants. Under 
this condition the French had termed it Rhizaphis vastatrix. Dr. Signoret con- 
sidered it to be a species of Phylloxera. 
Mr. Smith mentioned that he had observed a parallel instance of great 
diversity of habit in Cynips aptcra, which ordinarily makes more or less agglomerated 
masses of galls on the roots of the oak. But he had once found small galls formed 
of imbricated scales on the surface of the principal stem under-ground, and from 
them had bred an insect which he could in no way separate from the ordinary 
C. wptera, 
BRITISH HEMIPTERA: ADDITIONS AND CORRECTIONS. 
BY J, W. DOUGLAS AND JOHN SCOTT. 
Section 6. — Tingidina. 
PaMILT 2.— TiNGIDIDiE. 
GemiS 1.— MONANTHIA. 
Species 9. — Monanthia similis, n. sp. 
Ochreous-grey, with small black marks on the reticulation and 
