351 



odes, Anepsius, Eulabis, Pyrota, Dinocleus, Cleonus, Lixus, and the 

 ditt'erent genera of Cistelidte. 



Souic flianftes are noticeable, e. g., the genus Tiogoxylon i.s merged 

 iu Lyctus and the latter removed from the Ptinidie and placed in the 

 Clavicoru family Cucujidt^, a change which is scarcely warranted when 

 the biological affinities of this genus with the Ptinida; and the wide 

 divergence of its earlier stages from those of the Cucujid* are taken 

 into consideration. — F. H. C. 



FOURTH ANNUAL MEETING OF THE ASSOCIATION OF ECONOMIC ENTO- 

 MOLOGISTS. 



Columbus, Ohio, May 10, 1892. 

 Iu accordauce with au action of the Association, taken at the Washington meet- 

 ing, the fourth annual meeting will be held at Rochester, N. Y., two days prior to 

 the meeting of the American Association for the advancement of science. 



All members intending to present papers are requested to forward titles to the 

 undersigned before August 1, in order that the program may be prepared in proper 

 season. 



The proceedings of our meetings are attracting the attention of working entomolo- 

 gists of other countries, and it is to be hoped that members will spare no efforts to 

 make the coming meeting even better than those which have preceded it. Owing to 

 the continued ill health of President Liutner, and iu order to relieve him of as much 

 labor as possible, all correspondence, unless of a natui-e necessitating his attention, 

 may be addressed to the Secretary. 



F. M. Webster, 

 Secretary, Association of Economic Entomologists. 



ENTOMOLOGICAL SOCIETY OF WASHINGTON. 



March 3, 1892. — Nineteen persons j)resent. Mr. William Ross Harris, of Tyler, 

 Tex., was elected a corresponding member of the society. Dr. Stiles gave a talk 

 on the "Histology of Ticks." He made some blackboard sketches and exhibited a 

 number of slides illustratiug the subject. He dwelt especially on the cuticular 

 tissue, alimentary canal, stigmata, excretory organs, and glands of the head. Dis- 

 cussed by Dr. Marx. ^ 



Dr. Theo. Gill jn-esented a paper on "The Larva of Insects as an Intercalated 

 Stage." He quoted and criticised certain statements in Agassiz's " Classification of 

 Animals from Embryological Data." From these criticisms he argued to show that 

 the larva of insects was an added or intercalated stage. He had prepared a table 

 giving the distribution of fossil insects. This showed that the Orthopteroid, Neu- 

 ropteroid, H<nnipteroid, and Coleopteroid insects were not only the insects of the 

 Paheozoic, but also the prevailing insect tyi)es of the Mesozoic age. The Diptera, 

 Lepidoptera, and Hymeuoptera, which have a larva or caterpillar stage, were later 

 developments. Discussed by Messrs. Ashmead, Banks, and Gill. 



Thursday, April 7, 1892. — Twenty-one persons present. Mr. George D. Bradford, of 

 New York was elected a corresponding member. The discussion of Dr. Gill's paper 

 entitled "The Larva of Insects as an Intercalated Stage," postponed from the pre- 

 ceding meeting of the Society, was taken up and participated in by Messrs. Stiles, 

 Riley, Gill, and Banks. Dr. Riley presented two papers, one "On certain jjcculiar 

 Structures of Lepidoptera" and the other, "Descriptions of new Prodoxida^" He 

 spoke of various interesting structures of the Prodoxidie, calling attention more par- 

 ticularly to the saw-like ovipositors, the maxillary tentacles the cenchri-like spots 



