336 HYMENOPTERA. 



peus, the outer orbit of the eyes, a narrow line on the posterior 

 margin of the vertex, tlie antennse, labrum and mandibles, yel- 

 low ; ti])s of the mandibles black. Thorax black ; the prothorax, 

 two abbreviated central stripes on the mesothorax in front, a line 

 passing over the tegnla3 which unites with a line on the posterior 

 margin of the scutellum, the post-scutellum, and a curved line 

 on the metathorax, yellow j a large macula at the posterior 

 angles of the metathorax, and a large irregular-shaped spot be- 

 neath the wings, yellow ; the legs yellow, with a black stripe at 

 the base of the femora above; wings hyaline, tlie nervures fus- 

 cous. Abdomen yellow; the basal margins of the segments 

 black, eac]i with a central bilobed black spot ; beneath, the basal 

 margins of the segments have a bilobed black fascia ; the apical 

 segment black, with a heart-shaped yellow spot at the apex. 



Hab. North Carolina. 



Fam. 6. NYSSONID^. 



Mandibles not emarginate beneath; the intermediate tibise 

 with two spines at their apex. Abdomen resembling the Larridis^ 



Genus L STIZUS. 



Sphex, pt., Drury, Eooot. Ins. ii, 71 (1773). 

 Vespa, pt., Fahr. Ent. Syst. ii. 254 (1793). 

 Stizus, Latr. Gen. Crust, et Ins. iv. 100 (1804). 

 Sphecius, DaJilb. Hym. Europ. i. 154 (1843), 

 Hogardia, St. Farg. Hym. iii. 288 (1845). 



1. Stizus speciosus. B.M. 



Sphex speciosus, Drury, Exot. Ins. ii. 71. t. 38. f . 1 $ , 



Vespa tricincta, Fabr. Ent. Syst. ii. 254. 5; Syst. Piez. 254. 5, 



and Mus. Dom. Banks. Cab. Linn. Soc. 

 Stizus speciosus, St. Farg.8fServ.Enc.Meth. x. 496. 1. 1, 382. f. 6. 

 Sphecius s]jeciosus, Dahlb. Hym. Europ. i. 154. 

 Hogardia speciosa, St. Farg. Hym. iii. 290, 2. 



Hab. North America. 



2. Stizus IIogardii. PI. VIII. fig. 4. B.M. 



Stizus IIogardii, Latr. Gen. Crust, et Ins. iv. 100. t. 13. f. 12 $ . 



St. Farg. Sf Serv. Encycl. Meth. x. 496. 

 Hogardia rufescens, St. Farg. Hym. iii. 289. 1. t. 28. f. 5. 



Hab. St. Domingo; Jamaica. 



