262 EDWARD NORTON. 



anteniiaj ; iiasiis deeply notched, labruiu rounded before ; a dot above 

 each eye within, a spot on cheeks, mouth below antennae, teguljE, and 

 an angle before, scutel, basal plates, a triangular spot on pleura, and a 

 smaller spot above hinder coxae, the fourth, an interrupted band on the 

 fifth, the band on the sixth and seventh segments and the apex of ter- 

 gum straw-yellow, the band on the fourth segment encircling the abdo- 

 men ; legs yellowish, the coxjc, except at tips, a line on the apex of 

 medial femora above, the apical half of posterior femora and apex of 

 their tibite blackish, their tarsi fuscous; inner spur of anterior tibiae 

 bifid, inner tooth of claws large and near the tip. Wings smoky yel- 

 lowish, transparent, apical half darkest, stigma and costa yellowish. 



% . The male has the abdomen shorter, more slender ; the cheeks, 

 pleura and abdomen beyond middle of first segment straw-yellow; legs 

 yellow, except a spot on posterior coxse, a line down the four posterior 

 femora and tibiae and the hinder tarsi black. 



Var. a. S . Resembles the female, except that only the second, 

 third and fourth segments of abdomen are yellow, the remainder black; 

 the posterior tarsi are pale beneath. 



New England, N. Y., Pa., 111., N. W. Ter. 



The bands upon the abdomen, especially that on the fourth segment, 

 have a rufous tinge, but are not distinctly red as described by Say. 



,>. A. dubius. 



AUantus dubius, Harris' Cat. 



Norton, Bost. Jour, vii, 1860, 240, 10, 9 . 

 Black: antennae piceous, basal joints yellow, the fifth and the three ai)ieal 

 segments of tergum yellow. Length 0.45. Br. wings 0.90 inch. 



5 . Color black; antenna; piceous, the basal joint pale; head wide, 

 indistinctly piceous about the orbits; clypeus produced, angnlate; 

 labrum rounded; clypeus and beneath, scuteilum, edge and sides of 

 basal plates, a spot above posterior coxj>3, the fourth and the three api- 

 cal segments of tergum yellow; tegulfe piceous; legs piceous yellow, 

 darkest (in one case black) on femora above and on base of tibiae ; 

 coxa) black, at tip yellow ; trochanters yellow ; wings clouded, ner- 

 vures and apex of stigma blackish; basal half of stigma and costa 

 piceous yellow. 



Mass., (Harris' Coll.) 



'J'his may be a variety of A. hasilaris. 



4. AUantus annularis, n. sp. 



Black: base of aiiteniiie, mouth, cheeks, tcgulsc, anterior angle, two spots on 

 ])leura, scutel and post-scutel, basal plates and a band or fascia on each segment 

 of abdomen yellow. Length 0.40. Br. wings 0.80 inch. 



5. Shining black ; abdomen shorter and more cylindrical than in 



