40 Mr. F. Smith's Descriptions of new 



Family ANDRENID^. 

 Genus Halictus, Latr. 

 Hallclus Hesperus. 

 H. capile thoraceque cupreo-nitidis, alis hyalinis, pedibus 



rufo-testaceis ; abdomine nitido obscure ferrugineo. 

 Female. Length 3| lines. Head and thorax brassy, the head 

 with tints of green, closely and finely punctured; the antennae 

 black, the flagellum fulvous beneath ; the labrum and mandibles 

 rufo-testaceous. Thorax shining, brassy on the disk, the meta- 

 thorax green ; wings hyaline, the nervures and tegulse testaceous ; 

 the legs pale rufo-testaceous ; the floccus on the posterior femora 

 beneath, white. Abdomen shining and obscure fusco-ferruginous, 

 the apial margins of the segments with pale pubescent fasciae ; 

 beneath rufo-testaceous. 



Family APID/E. 

 Genus Ceratina, Latr. 

 L Ceratina Iceta, Spin. Ann. Soc. Ent. Fr. x. 138, 87. 

 This species has also occurred in Cayenne and at Ega. 



2. Ceratina ininctulata, Spin. Ann. Soc. Ent. Fr. x. 139, 89 

 (1841). 



The specimens from Cayenne, described by Spinola, only differ 

 from those from Panama in having a white spot on the labrum : 

 I have little doubt of their identity. 



3, Ceratina eximia, 



C. capita thoraceque metallico-viridibus ; abdomine purpureo, 

 pedibus pallidis ciliatis. 



Female. Length 4| lines. Head and thorax of a bright 

 metallic green, and strongly and closely punctured ; the flagellum 

 obscurely rufo-piceous beneath ; an oblong spot on the clypeus 

 and a minute triangular one on each side, cream-coloured ; the 

 mesothorax with three longitudinal impressed lines in the middle, 

 and an abbreviated one outside opposite the tegulse ; the wings 

 sub-hyaline, the nervures and tegulse ferruginous ; the legs pale 

 ferruginous, and thinly covered with cinereous pubescence ; a 

 minute spot at the apex of the anterior femora above, and a line 

 on the tibise ; also a minute spot at the extreme base of the 

 posterior tibiae, white. Abdomen bright purple, finely punc- 

 tured, the three apical segments rugose. 



