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pieces of raw meat ; these were quickly covered with ants, which might at once be put 

 into boiling water and destroyed, and the process then be repeated. 



Mr. Stainton gave the following account of the Entomological Proceedings of the 

 38th meeting of German Naturalists, held at Stettin, from the 18th to the 24th of 

 September last: — 



"Monday, September 21, IF63, under the Presidency of Herr von Kiesenwetter. 



" Director Loew exhibited his work on the European Trypetidse, and called 

 attention to the twenty-six photographic figures, which had been executed at the 

 Royal Printing Press at Vienna. 



" Dr. Kraatz, of Berlin, reduced Melolontha albida of Redtenbacher, from Austria, 

 and M. albida of Mulsant, from France, as also M. candicans of Burmeister, by the 

 help of Grecian specimens, to the ordinary cockchafer {Melolontha vulgaris), and 

 showed that Greek female specimens were hardly to be distinguished, or were quite 

 undistinguisbable, from the Rhineland M. albida of Erichson (Rhenana, 5ac/«), without, 

 however, being able with certainty to refer the last-named species to M. vulgaris as a 

 variety. The fourth German species, M, aceris, Erichson, was identical with the 

 M. albida of Bach, and must be called M. pectoralis of Gerraar. 



" Herr v. Kiesenwetter, in reference to the preceding and to the Darwinian theory, 

 suggested to entomologists that in no other branch of science did material stand so 

 ready to hand for making experiments in breeding by selection the commonest species 

 of insects. 



" Herr Toepffer, of Stettin, explained how he had succeeded, by means of a breeding 

 apparatus, in obtaining healthy larvae and imagines from the eggs of Bombyx Mori 

 brought by the Prussian expedition from Japan, so that he had already distributed 

 eggs gratis amongst 150 breeders, who were, almost without exception, very well 

 satisfied with the results ; the species seemed well acclimatized and produced each 

 year better cocoons. Herr Toepffer expressed himself little satisfied with the 

 Ailanthus and Ricinus larvse recommended by Guerin-Meneville. In conclusion 

 he exhibited cocoons of the diflferent races, and various manufactures of Pomeranian 

 silk." 



"Wednesday, September 23, 1863; under the Presidency of Herr Schulrath 

 SufFriaa. 



"Professor Miinter spoke concerning the Fungi parasitic on insects, and exhibited 

 a larva of Bombyx pudibunda with a huge Gordiceps, and a Carabus nemoralis with 

 Sphserius entomorhiza. He called on entomologists to direct their attention to these 

 objects when collecting. 



" Herr Stein, of Berlin, Director Loew, and Dr. Hagen spoke of similar 

 appearances amongst exotic insects. 



" Dr. Hartig, from Brunswick, made a communication respecting the Calobates 

 RhizomsB, recently discovered by him, and exhibited a specimen. It is an insect 

 allied to Aphis, which occurs at the roots of fir trees, and is distinguished by a per- 

 fectly anomalous structure of the legs, since the tibia and tarsus are grown together in 

 one straight piece. He also stated that Hylesinus micans, and especially Pissodes 

 HercynisB, had lately become highly injurious to the forests of Brunswick and 

 Hanover, and that along with them their foes, Cryptus impressus, Conites Her- 

 cyniae, &c., had appeared, of which he exhibited several bred from Pissodes larvae. 



" Director Loew made a long discourse on the anatomical peculiarities of Oncodes 



