1890.] ENTOMOLOGICAL NEWS. 135 



SociETE d'Histoire Naturelle de Toulouse, xxiii. 1889.— Materials 

 contributing to the entomological fauna of the south of France -Hemip- 

 tera. by M. Marquet. 



Termeszetrajzi Fuzetek (Budapest), xiii. 1890.— Contributions to the 

 distributions of Galls, with particular regard to the neighborhood of 

 Budapest, v, Szepligeti. 



ZooLOGiscHER Anzeiger, Aug. 1 8. 1890.— On the hermaphroditic func- 

 tion of the Sexual Glands of the male of Phyllodromia {Blatta L.) ger- 

 tnanica, by R. Heymons. 



Entomologische Nachrichten, xvi. No. 14, July, 1890.— On Dimor- 

 phism and Mimicry in Butterflies, by L. Glaser. 



No. 15, August, 1890. -New species of Apidae, by A. Schletterer, mostly 

 from Chili. 



No. 16, August, 1890.— Three papers on the Coleopterous genus Athous 

 and its allies,* by E. Reitter. Elathous n. gen. 



Doings of Societies. 



The Entomologic.\l Society of Washington, June 5, 1890.— Mr. 

 Ashmead, under general notes, announced the discovery of a genus of 

 Proctotrupidae new to the United States. The insect Iphitrachelus amer- 

 icanus is interesting as furnishing a connecting form between the sub- 

 families Ceraphroninse and Platygasterinse. 



Mr. Schwarz exhibited a specimen of Thro sens pugnax, which species 

 is new to the fauna of the District. — 



Prof. Riley presented a paper " On the Difficulty of dealing with Lach- 

 nosterna," in which he described the attacks of those beetles on certain 

 large trees, especially Chestnut and Swamp Oak, having a height of about 

 thirty feet which had been transplanted to his grounds last February. The 

 successive appearance and work of the several species of Lachnostema 

 were described and the experiments with remedies detailed. The latter 

 consisted in spraying with strong whale oil and tobacco soap solution, and 

 later with London Purple at the rates of one pound to 125 gallons of water. 

 The applications were satisfactorily made, but proved ineffective. The 

 first did not prevent the attacks of the beetles at all, and while the second 

 resulted in the poisoning of many of the beetles as indicated by the find- 

 ing of dead ones on the ground, it was of little value in limiting the on- 

 slaught. Prof. Riley deduced from his experiments that it was practically 

 impossible to protect large trees from Lachnosterna. It was shown also 

 that the beetles came from the ground near the trees, and appear to have 

 a predilection for newly transplanted trees. The injury- consisted in the 

 gnawing off of the leaves at the base of the petiole. 



* Contains new species other than North American. 



