'26 HYMKXOPTERA. 



scape in front, yellow; the fla<;ellinn beneath testaceous; the 

 labnim auil mandibles fenujrinous. Thorax closely punctured ; 

 the collar, tubercles, tegula; in front, seutellum and post-scutel- 

 lum, as well as the legs, bright yellow ; the coxic, trochanters 

 and apical joints of the tarsi stained with ferruginous ; the wings 

 fusco-hyaline, splendidly iridescent. Abdomen finely jmnctured, 

 the apical margms of the segments broadly testaceous, and having 

 a band of pale yellow pubescence, that on the basal segment 

 broadly interruj)ted ; beneath, the margins are also testaceous. 



Male. — Closely resembling the female, but narrower, and 

 having the labrum and mandibles bright yellow. 

 Hab. Spain and Portugal. 



31. Prosopis cyanura. B.M. 

 Melitta cyanura, Kirby, Mon. Ap. Anc/l. i. 212. 



Hab. Swan River. 



32. Prosopis simills, n. s. B.M. 



Female. Length 3^ lines. — Black, entirely, closely and finely 

 punctured, a large triangular spot on each side of the face, a 

 spot on each side of the collar, the tubercles, seutellum and post- 

 scutellum bright yellow ; metathorax opake ; thorax beneath 

 coarsely punctured ; wing hyaline, the second submarginal cell 

 subquadrate, narrowed towards the marginal. Abdomen a little 

 elongated, obscurely tinged with blue and covered with a change- 

 able white pile, obsen-able in certain lights, the apex thinly 

 covered with black pubescence ; beneath, the second segment at 

 the base covered with deep punctures, its apical margin smooth ; 

 the second segment finely punctured at the base, more coarsely 

 towards its apical margin ; othenrise closely and finely punc- 

 tured. 

 Hab. New Holland. 



33. Prosopis violacea, n. s. B.M. 



Female. Length 3 to 4 lines. — Head and thorax black, closely 

 and rather strongly punctured ; the face on each side of the cly- 

 peus with a lunate yellow patch reaching a little above the in- 

 sertion of the antennae, which are testaceous beneath ; the tu- 

 bercles, a half-circular spot on the seutellum, a smaller similar one 

 on the post-scutellum bright yellow ; beneath the latter is the 

 enclosed segment of a cii'cle, the upper portion of which is ru- 

 gose, the under quite smooth ; beneath the enclosed portion the 

 metathorax is transversely striate. Abdomen ^•iolet, closely and ra- 

 ther strongly punctured. Wings hyaUne, brilliantly ii-idescent, the 



