rsr( HE. 



[March — April i^.?. 



Vohinu' 21. 



iSSi 



1SS2 



Wc coiniiiL'iui il lo tlic attontioii of the 

 editors, not only of the jieriodicaKs inen- 

 tioticd, hut also of othei-s, whether it would 

 not he well lo adopt the piineiple illustrated 

 iiil'sYCHE, of giving, at the earliest oppor- 

 tunity, in a systematic manner, the dates of 

 i,ssue of parts already issued, and oniittinij 

 dates of prospective i.ssiic. 



/.' /'. M. 



PROCEEDINGS OF SOCIETIES. 



AcMJEMY OF Natural Sciences of 

 Philadelphia. 



S Aug. iSSa. — The Uev. H : C. McCook 

 described the raids of Formica sangiiinca 

 upon F. fiisca — raids in which the black 

 slaves assist their red masters. Reds and 

 blacks shared the labor of raising the young. 

 The nests of F./usca, conspicuous in places 

 where there vere no red ants, were hard to 

 find where Ine latter were common. An at- 

 tempt to introduce the red ant into a city 

 yard failed through the attacks of the com- 

 mon pavement ant, Tetramorium caespitiiin. 



3 Oct. 1SS2 — Dr. Skinner remarked that 

 the organ of oftence of the larva of Pafiilio, 

 usually believed to be solid, is really hollow, 

 rolled in and out upon itself. 



10 Oct. iSSj. — Rev. H : C. McCook pre- 

 sented a paper upon the snares of orb- 

 weaving spiders, and described four species 

 of Epeira. 



31 Oct. 18S2. — Rev. H: C. McCook drew 

 attention to the use of ants as insecticides by 

 the Chinese, and stated his belief that as no 

 American species lived on trees, the proba- 

 bilities were against their usefulness for a 

 similar purpose. 



7 Nov. 1S82. — Rev. 11: C. McCook pre- 

 sented a paper on "Ants as beneficial insec- 

 ticides" and advocated the importation of the 

 ant used in Cliina for the protection of 

 orange trees. 



14 Nov. 18S2. — Mr. Thomas Meehan stated 

 that the nest of the wood pewee [ contopus 

 vireus ] is held together by cobwebs. 



5 Dec. 1SS2. — Dr. Horn remarked upon 

 the singular distribution of the apterous 

 water-beetle Amp/iizoa, one species of which 

 inhabits California, a second the district 

 northward of that state as far as Vancouver's 

 island, while a third has been found high up 

 in the mountains of Thibet. 



23 Jan. 1SS3. — Dr. Skinner stated that 

 Argyiiiiis cybele, instead of carefully deposi- 

 ting its eggs, as is usual with hutterHies, 

 dropped theni from a distance upon the her- 

 bage. — Complied from Aiinr. mil., .\pril 18S3. 

 V. 17, p. 462 - 466. 



