236 On the Hymenoptera of the Genus 



Art. III. — On the Hijmenoptera of the Genus Allantus 

 in the United States. By Edward Norton. 



[Read Dec. 5th, I860.] 



In the following paper, I have endeavored to give a list 

 of the known species of this genus, and to describe a num- 

 ber of new species. Through the kindness of Mr. S. H. 

 Scudder, I have been enabled to identify most of those 

 named by the late Dr. Harris in his " Catalogue of the 

 Insects of Massachusetts " from the original specimens, 

 now in the possession of the Boston Society of Natural 

 History. Many of them were named by Say for Dr. 

 Harris, but do not seem to have been described. 



Some of the species here enumerated do not agree in 

 every respect with the generic characters laid down by 

 Hartig ; the abdomen is not always as elongate, as in A. 

 Schrophidarice, nor the hind legs very long, but all have the 

 third joint of the antennae longer than the fourth, and such 

 a strong " family resemblance " that I have thought it best 

 to leave the question of farther subdivision until it seems 

 to be more necessary. The larvae of these dissimilar spe- 

 cies require to be studied before their exact relations can 

 be settled. 



The genus Tenthredo seems to have but few representa- 

 tives in this country. I have seen as yet but two or three 

 species which belong to it or its several subsections. These 

 I propose to describe at some future time. 



FMI. TENTHREDINID^. 

 GENUS ALLANTUS, PANZER. 



Div. A. (Stephens). Antennae short, somewhat clavate 

 at the tip. None as yet found in the United States. 

 B. Antennae not thickened at the apex, 

 a. Antennae white at the tip. 

 Sp. 1. A. terminalis. 



DECEMBER, 1860. 



