Capt. P. P. King's South American Hymenoptera. 321 



*17. Melipona favosa. Fabr. 

 St. Paul's ; and Mr. Curtis has received it from Mexico. 



18. Melipona ruficrus. Latr. 

 St. Catherine's. 



*19. Trigona Amalthea. Fabr. 



Huic exemplari caput totum nigrum. 

 St. Paul's. 



*20. BoMBUS Cajennensis. Fabr. 



Taken at St. Paul's ; and Mr. Curtis has also specimens from Mexico. 



*21. BoMBUS NIGRIPES, U.S. 



Ater; vert ice, dorsoque thoracis et abdominis fulvo-hirtis ; alis ferrugineis. 



Femina et aculeata. 

 Long, alarum Feminse 2b\ lin.; aculeatae 12 lin. 

 Long. Corp. Fem. 14 lin; aculeatae 7i lin. 

 Very abundant in Chili. Lieut. Graves. 



22. Halictus rubellus, n. s. 



Niger, nitidus, pubescens ; abdomine rufo, apice nigra ; tarsis apice rufis. Fem. 

 Long. Corp. 4^ lin. Alar. 9 lin. 



Fem. Niger, nitidus, pubescens. Tarsorum articulus priinits iernigmeo-biivhu- 

 tus, articuli reliqui rufi. Ala; obscurfe hyalinse, stigmate et nervis fuscis 

 aut ferrugineis. Abdomen dorso ferfe glabrum, segmentis primo et secuiido 

 (vel totis, vel hujus apice medio demto) etiam quarti et ssepfe quinti late- 

 ribus rufis : rima analis conspicua ciliata. 

 Chili. 



*23. Halictus metallicus ? Fabr. (Megilla.) 

 St. Paul's. 



*24. Andrena cyanescens. 



Nigra, cano-hirfa ; abdomine nitido cyaneo. Fem. 

 Long. corp. 5 lin. Alar. 8^: lin. 



