328 HYMENOPTERA. 



three following segments a narrow biarcuate glaucous stripe, 

 slightly interrupted in the middle ; beneath, entirely black. 



Hob. Australia (Swan River). 



43. BEMBEX FURCATA. B.M. 

 Bembex furcata, Erichs. Wiegm. Arch. 1842, p. 266. 240. 

 Hob. Van Diemen's Land; Australia (Swan River). 



Erichson describes the male as having the labrum black, and 

 the clypeus with a yellow macula ; a series of examples exhibits 

 every variety, from yellow to black. 



44. BEMBEX LUNATA. 



Bembex lunata, Fabr. Ent. Syst. ii. 249. 6; Syst. Piez. 224. 10. 

 Dahlb. Hym. Europ. i. 492. 33. 



Hob. Tranquebar. 



45. BEMBEX TREPANDA. B.M. 

 Bembex trepanda, Dahlb. Hym. Europ. i. 181. 



Hob. India. 



46. BEMBEX SULPHURESCENS. B.M. 

 Bembex sulphurescens, Dahlb. Hym. Europ. i. 180. 



Hob. India (Madras; The Punjaub). 



47. BEMBEX MELANCHOLICA. B.M. 



Female. Length 8 lines. Head and thorax black ; the cly- 

 peus, sides of the face, scape in front, labrum, mandibles and 

 outer orbit of the eyes, livid-yellow ; the clypeus has two black 

 spots at the base. The posterior margin of the prothorax, a line 

 on each side of the mesothorax, two stripes on the disk, and a 

 transverse one at its posterior margin united to the central stripes, 

 livid-yellow; a transverse curved stripe on the scutellum and 

 post-scutellum, and also the metathorax, livid-yellow ; an angular 

 black spot on each side of the metathorax, from which a narrow 

 black line runs obliquely inwards, meeting in the middle of the 

 base ; a narrow black line runs from the outer angle of the spot 

 down the sides of the metathorax ; the thorax livid-yellow beneath, 

 with a black spot in the middle of the pectus, and one or two 

 smaller ones at the sides ; the legs livid-yellow, with a black stripe 

 on the tibiae and femora behind. Abdomen blue-black ; segments 

 1-5 have a broad livid fascia, the first narrowed in the middle, 



