31)4 EDWARD NORTON. 



tip; tarsi, first juiut white j abdomen black, three middle segments and 

 the penultimate segment, each with a white spot on each side." 



Pennsylvania. 



Dr. Harris in mentioning his X. mellijjcs only states that it differs 

 t'hiefiy from A', alhiconiis in having only four white spots on each side 

 of the abdomen. It is four-tenths of an inch long. 



4. X. 1)asalis. 



Xiphi/dria bascUis, Say, Bost. .Jour. i. 18:^.5, 222, 2. 



"Bliick; abdomen fa«!ciate at base. Length seven-twentieths of an inch. 

 •• 9 . — Body black, polished ; mandibles and palpi white ; thorax, an- 

 terior segments glaucous on the posterior margin; wings hyaline, first 

 fubital cellule confluent with the first radial, having only a rudiment of 

 the dividing uervure; abdomen, the two basal segments honey yellow, 

 more or less intermixed with black; feet honey yellow; posterior tibi« 

 and tarsi black, the former white at base." 

 Indiana. Not seen. 



5. X. abdominalis. 



Xiphijdria abdominalis, Say, Long's, 2nd. Exp. ii. 1821, .Sll, 1. 



Black, abdomen rufous. Length more than half an inch. 



"■ Head confluently punctured, antennse short; vertex with two dis- 

 tant, longitudinal yellow spots back of antennse, and another transverse 

 one on each cheek above, from summit to mandibles or on outer orbit; 

 thorax confluently punctured, margined^ and with three longitudinal 

 impressed lines, distant before; wings fuliginous; abdomen bright ru- 

 fous, first segment above blackish; feet piceous black." 



Pennsylvania. Not seen. Sex not given. ? in collection of Mr. 

 Stephen Calverley. 



«'>. X. attenuatas. 



Xiphydfia aitenuatus, Norton, Proc. Ent. Soc. Phil. i. 1862, 144 %. 

 Color i>ale honey -yellow; body very slender. % , Long. 0.26. Br. wings 0.48 

 inch. 



% . — Pale honey-yellow, antenniB 16-jointed, blackish, two or three 

 basal articles yellowish ; a spot inclosing ocelli, tip of mandibles, sides 

 of neck, of meso- and metathorax blackish, tergum irregularly dark, 

 pectus brown piceous ; body beneath and legs whitish ; wings hyaline, 

 nervures and stigma pale ; under wings with two middle cells. 



Pennsylvania. (Coll. Am. Ent. Soc.) Four specimeus- 



4. UROCERUS, GeoflV. 

 Urocants, Geoffroy, Hist, des Ins. 1762, 

 ISlrex, Linn. Syst. Nat. 12th Ed. 1766. 

 Ichneumon, Linn. 

 ir//i,i/.s with two marginal and four subinarginal cells, the first small. 



