208 MESSRS. T. BLACKBURN AND P. CAMERON ON THE 



Table of Species of Prosopis. 



1. Anterior margin of thorax yellow a 



Anterior margin of thorax not coloured yellow 3 



2. Upper surface of hind body distinctly punctured fuscipennis, Sm. 



Upper surface of hind body not distinctly punctured. Kona, mihi. 



3. Ventral segments even in both sexes 4 



Ventral segments transversely ridged in the male rugiventris, mihi. 



4. Upper surface of hind body not distinctly punctured 5 



Upper surface of hind body with well-defined punc- 

 tuation satelles, mihi. 



5. Hind body black 6 



Hi nd body red 9 



6. Head short (i. e. distance from eye to eye in front of 



antennae considerably greater than from antennge to 



apex of clypeus) coniceps, mihi. 



Head elongate {i. e. the former of these distances not, 



or scarcely, exceeding the latter) 7 



7. Apical margin of clypeus distinctly rounded 8 



Apical margin of clypeus truncate Blackburni, Sm. 



8. Basal joint of antennae not, or scarcely, longer than 



wide in male flavifrons, Sm. 



Basal joint of antennae much longer than wide facilis, Sm. 



9. Yellow markings on face of male extending behind the 



antenna; hilaris, Sm, 



Yellow markings on face of male not passing behind 



the antennte volatilis, Sm. 



The following two species have been described by Mr. 

 P. Smith in his Cat. of Hymen. Ins. pt. i. p. 23, from the 

 Sandwich Islands. It is more than probable that they are 

 identical with some of the species described above^ but^ as 

 the descriptions are not very clear^ and as I have not spe- 

 cimens of all the species for comparison, I have not been 

 able to satisfy myself as to this. To make the descriptions 

 of Prosopis complete, I give a copy from Smithes work of 

 those of P. anthracina and P. flavipes. — P. C. 



1 1 . Prosopis anthracina. 



''Female. Length 2 f lines. Entirely black, head and 

 thorax very finely punctured, the apical joints of the an- 



