THE ENTOMOLOGIST. 211 



the aplevous 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 jrom Swan River. — Mr. C. O. Water- 

 house also exhibited a drawing of a Neuroplerous insect of 

 the family Ascalaphidse, 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 Neuroptera from Yokohama. — Mr. Worm aid 

 exhibited a collection of Neuroptera, &c., from the neigh- 

 bourhood of Yokohama, received from Mr. H. Pryer. It 

 included several interesting species of Panorpidae, including 

 a new genus of that family, according to Mr. M'Lachlan ; 

 fine species of Osmylidae, &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. 



ZygcBna Meliloti and Z. Trifolii. — Mr. Briggs exhibited 

 bred specimens of Zygsena Meliloti, accompanying them 

 with the following remarks: — "In 1872 and 1873 I reared 

 young larvae of Z. Meliloti from the New Forest, up to and 

 through hybernation, but they died in the following springs ; 

 and these larvae, from the minuteness of the markings on the 

 ground colour, showed a great distinction from the young 

 larvae 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. 



