HYMENOPTERA. 291 



acute. Thorax : aboA'e clothed with golden pubescence, which is 

 most sparing in the middle ; on the sides, beneath, and on the 

 legs, is a fine silky silvery pile; wings yellow-hyaline, with a 

 broad fuscous apical margiu ; the nervures yellow towards the 

 base of the wings, and fuscous towards their apex. Abdomen : 

 the apical margins of the segments with broad pale golden bands, 

 the apical segment obtuse and covered with pale pubescence. 



Hab. Brazil. (Coll. F. Smith.) 



Species of North America. 

 Div. 1. Abdomen red and black. 



56. Larrada analis. B.M. 

 Larra analis, Fabr. Syst. Pies. 220. 8. 



Hab. Carolina ; United States (Delaware). 



57. Larrada l^vifrons. B.M. 



Female. Length 4i lines. — Head and thorax black ; the face 

 thinly covered with silvery pubescence ; the vertex with merely 

 a slight elevation above the anterior ocellus, with two smooth 

 spaces behind, between them a smooth shallow channel which 

 passes a short way upwards tov.ards the vertex terminating in a 

 smooth fovea. Thorax opake ; the metathorax finely shagreened, 

 and having at the sides a little cinereous pubescence; wings 

 hyaline, the nervures testaceous ; the apical joints of the tarsi 

 rufo-testaceous. Abdomen : the three basal segments red, the 

 apical ones black ; thinly covered with cinereous pile, the apical 

 segment very smooth and shining. 



Hab. East Florida (St. John's Blufi"). 



58. Larrada terminata. B.M. 



Male. Length 3 lines. — Black : the head closely and rather 

 strongly punctured ; an impressed line runs backwards from the 

 tubercles, which replace the two posterior ocelli, to the margin 

 of the vertex ; the face covered with silvery pubescence. The 

 mesothorax shining and punctured ; the metathorax shagreened ; 

 the thorax above with a scattered short cinereous pubescence ; 

 the wings hyaline and iridescent, the nervures testaceous ; the 

 apical joints of the tarsi rufo-testaceous. • Abdomen shining, 

 delicately punctured ; the apical margins of the segments slightly 

 depressed and narrowly rufo-piceous ; the two apical segments 



