60 ENTOMOLOGICAL NEWS. [March, 



JENAISCHE ZEITSCHRIFT FUR NATURWISSENSCHAFT, xxv, heft i and 2, 

 Jena, 1890. Hemidiptera Haeckelii, by Dr. N. Leon, i plate. The poison 

 apparatus of Formica rufa, a reduced organ, by Dr. O. W. Beyer, 2 pis. 



JAHRBUCHER DES NASSAUISCHEN VERKINS FUR NATURKUNDE, Jahrgang 

 43, Wiesbaden, 1890. Contributions to the Lepidopterous Fauna of the 

 Malay Archipelago, vi. On the Butterflies of East Java,* by Dr. A. 

 Pagenstecher. 



Doings of Societies. 



ENTOMOLOGICAL SECTION OF THE ACADEMY OF NATURAL SCIENCES. 

 A regular meeting was held Jan. 22, 1891, Director Dr. Horn in the chair. 

 Members present: E. T. Cresson, Martindale, Ridings, G. B. Cresson and 

 Skinner. Associates: Calvert, Westcott, Fox, E. Seeber, Liebeck and 

 Dr. Skinner. Mr. Neel visitor. Dr. Horn stated that he had been study- 

 ing the species of Agrilus, and found them more numerous and more 

 difficult than he had imagined, but he hoped to get them in such shape 

 that students could do more with them. The characters of the claws were 

 discussed, and the speaker said it was necessary to see the claws of both 

 sexes and the front and hind claws also. He proposed to divide them into 

 groups separated by different types of claws. The difficulties of the sub- 

 ject were illustrated by drawings on the blackboard, and characters of 

 more or less value were mentioned and considered at length. Mr. Calvert 

 spoke on the genus Ischnura, stating that there were two local species: 

 verticalis Say and Ramburii Selys. Partly owing to the imperfect de- 

 scription in Dr. Hagen's Synopsis of 1861, he had hitherto mistaken the 

 orange females of both verticalis and Ramburii as belonging to Ramburii. 

 He believed that the orange females of verticalis could be distinguished 

 from those of Ramburii by having a black lateral dorsal thoracic stripe 

 wanting in Ramburii. Mr. Martindale mentioned that in the January 

 number of NEWS was an article by Mrs. Slosson on P. assimilans, which 

 showed how species could be lost for even a great number of years and 

 then refound. The only specimens known until Mrs. Slosson's redis- 

 covery were the two worn and damaged specimens in the British Museum. 

 He exhibited colored figures of these interesting moths intended for EN- 

 TOMOLOGICAL NEWS. He also mentioned here rediscovery of Seirarctia 

 echo. Dr. Horn called attention to the fact that, in 1850, on Dr. LeConte'e 

 return from California, he described a species Acrepis maculata. The 

 type of this went to the bottom on its way to Europe. It was recently 

 rediscovered by the speaker in a collection made by the late H. K. Mor- 

 rison, and none have been found since. 



* Contains new species other than North American. 







ENTOMOLOGICAL NEWS for February was mailed February 2, 1891. 



