THE ENTOMOLOGIST. 211 
the apterous condition was correlated with the fact that 
plants under similar circumstances were apetalous and self- 
fertilising ; and hence it was supposed that the existence of 
winged insects was unnecessary. 
Chekanops under the Elytra of a Passalus.—Mr. C. O. 
Waterhouse exhibited a Chekanops, of which he had dis- 
covered two specimens under the elytra of Passalus punctiger, 
from Rio Janeiro, thus confirming the statement that these 
insects attach themselves to the bodies of other insects after 
the manner of Acari. 
A New Neuropteron from Swan River.—Mr.C.O. Water- 
house also exhibited a drawing of a Neuropterous insect of 
the family Ascalaphidz, from Swan River, presenting the 
peculiarity of having a large bifid hump on the basal segment 
of the abdomen dorsally, each division of the hump bearing 
a crest of hairs. He believed it to be the male of Suphalasca 
magna, M‘ Lachlan. 
Collection of Neuroplera from Yokohama.— Mr. Wormald 
exhibited a collection of Neuroptera, &c., from the neigh- 
bourhood of Yokohama, received from Mr. H. Pryer. It 
included several interesting species of Panorpide, including 
a new genus of that family, according to Mr. M‘Lachlan; 
fine species of Osmylide, &c. Amongst the Trichoptera was 
a remarkable species of the genus Perissoneura, black, with a 
large white spot in each wing, deceptively resembling a 
butterfly, especially an Ithomia. 
JUNE 7, 1875. 
Zygena Meliloti and Z. Trifolii—Mr. Briggs exhibited 
bred specimens of Zygena Meliloti, accompanying them 
with the following remarks :—“ In 1872 and 1873 I reared 
young larve of Z. Meliloti from the New Forest, up to and 
through hybernation, but they died in the following springs ; 
and these larve, from the minuteness of the markings on the 
ground colour, showed a great distinction from the youn 
larve of Z. Trifolii of the same age. Last year (1874) I found 
small specimens of Z. Trifolii in company with Z. Meliloti. 
I therefore took especial care that the eggs I reared were from 
four typical pairs of (the New Forest) Z. Meliloti, found in 
copula ; the eggs were (in all four cases) larger than the eggs 
of Z. Trifolii—a peculiarity I had remarked in previous years. 
