AMERICAN HYMENOPTERA. 261 



nrrangement of Hartig is here followed, although the divisions cannot 

 be considered uiore than sub-genera. 



Division 1. Antcnnse 8-joiuted ! clavate. 



1. Allantus originalis, n. sp. 



Black; tlie luouth, collar, scutel, basal plates, and band on each segment of 

 abdomen yellow ; wings hyaline. Length t). 50. Br. wings 1.00 inch. 



9. Body long, abdomen somewhat compressed; antennas short, 8- 

 jointed, clavate, first joint large, more than twice as long as second, 

 third nearly as long as fourth and fifth together, apical joint rather ob- 

 tuse, rounded; color black, with a pale spot on the outside of basal 

 joint; head and thorax dull, with coarse pits; nasus incurved, pro- 

 duced, labrum rather pointed; the apical joint of palpi shorter than 

 either of the two preceding ; nasus and mouth beneath, pale ; tegulic 

 piceous ; a broad band on collar, scutel, (scutel rather prominent), ba- 

 sal plates, an interrupted band on the apical edge of second and third 

 and a band on remaining segments of abdomen dull yellow, inclining 

 to piceous on the venter; a yellow spot above hinder coxae; legs black, 

 trochanters black, the anterior femora before, and all their tibiae and 

 tarsi, the medial knee joints, tibias (their tips blackish) and tarsi, (api- 

 cal joints black), posterior knee joints, tibiae (their apex and apex of 

 tarsi black) and tarsi yellowish. Wings smoky hyaline, stigma and 

 costa ferruginous, nervures yellowish. 



Carabou Island, kSts. of Belle Isle, Labrador. (A. S. Packard, Jr.) 

 One specimen. It somewhat resembles All. amtatus, of Europe, 

 but the head is smaller and the abdomen longer. The antennae are 

 more clavate than any North American species yet seen. In other re- 

 spects it resembles Allantus. 



Division 2. Antennse 9-jointed; not clavate. 



2. A. basilaris. 



Tenihredo basilaris, Say, Long's Second Exp. II, 1824, 316, 9 %• 



AUajitus coronatus, Harris' Cat. %. 



Allantus basilaris, Norton, Bost. Jour, vii, I860, 240, 9. 



Proc. Ent. Soc. Phil, iii, 10, 18, Var. %. 

 Black ; the basal joint of antennae, face below, cheeks, tegulse, collar, scutel, 

 basal plates, spots on pleura, and fascise on the five apical segments of abdomen 

 of 9 straw-yellow ; abdomen of % wholly pale. Length 0.44 — -0.48. Br. wings 

 0.80— 0. 80 inch. 



9. Abdomen long, cylindrical; antennas short, stoutest in middle, 

 apical joint pointed, basal joint more than twice as long as the next, 

 third long, basal joint pale; head wide as thorax, polished, having very 

 shallow punctures, deeply channeled on each side of ocelli, with a cross 

 channel behind; lower ocellus in a basin, which extends down between 



