116 



Mr. S. H. Scudder presented a pai^er entitled "Materials 

 for a Monograph of the Orthoptera of North America, with 

 a list of the known New England SiDecies." 



The following papers were presented : — 

 Catalogue of American species of Tenthbedo, as ak- 



KANGED BY HaRTIG. By EdWARD NoRTON. 



In a paper on the " Genus AUantus," in the Journal of the Boston 

 Society of Natural History, December, 1860, 1 adopted the divisions 

 indicated by Leach and followed by Stevens in his British Entomolo- 

 gy, viz. : 



Allantus, third joint of antennae longer than fourth ; clypeus gene- 

 rally notched, &c. 



Tenthredo, third joint of antennae scarcely longer than fourth ; 

 clypeus generally rounded, &c. 



This division is not so satisfactory as that advocated more or less 

 by Klug, St. Fargeau, Curtis, Dahlbom, and more fully presented by 

 Dr. Hartig, which is here briefly sketched, and all the described 

 species known to me assigned to their respective places, together 

 with several species, supposed to be new, in the three last-named 

 sub-genera. I have given the references in full to the species not 

 noticed in the above-mentioned article. 



Genus Tenthredo, Klug. 

 Antennae nine or ten jointed; wings with two radial and four 

 cubital cells, the two recurrent nervures entering the second and 

 third cubital cells. 



Body short, oval, f Antennte nine jointed, 1. Selandria. 



smaU. X " ten or eleven jointed, 2. Athalia. 



' Coxffi lengthened, 4. Macrophya. 



Body lengthened, 

 large, antenna3 ^ 

 nine jointed. 



Antennae short, toward \ 

 the end thickened, ) 



Antenna, lengthened, I 5_ Tenthredo. 

 bristle-shaped, y 



Selandria, Leach. See Proceedings of the Boston Society of 

 Natural History, Vol. VHI., 219. 



Athalia, Leach. Antennae ten or eleven jointed, somewhat 

 thickened toward end, third joint long ; lanceolate cell with oblique 

 cross line. 



Allantus, Jurine. Antennae hardly longer than thorax, mostly 

 thickened toward the end ; body cylindrical ; coxte reaching as far 

 as the edge of the third * abdominal segment ; lanceolate cell, with- 

 out exception, with straight cross line. 



