810 Hob. Lucas: 



2. Pepsis optimatis F. Sm. 



Pepsis optimatis Smith, Annais and Magaz. Nat Histury, ser. IV, 

 tom XII, 1873. pag. 50. Q. 



Female. Length 12 lines. Head and thorax clothed witli golden 

 pubescence; abdomen black, with a beautiful cliangeable opaline lustre; 

 the antennae orange-red ; tlie scape black, and witb a golden pile. Thorax 

 bright golden; wings dark rufo-fuscous, with a pale spot in the second 

 discoidal cell; legs black; the tibiae and tarsi very strongly spinöse; the 

 coxae with golden pile. Abdomen black, with a sericeous pile that chan- 

 ges in tint in different lights to green, gold blue or opaline lustre. 



Hab. Para 



3. Pepsis speciosa F. Sni. 

 Pepsis speciosa Smith. Catalogue of Hym. Ins. in the coli, of the 

 Brit. Mus. III, 1855, pag. 195, No. 22 cf. 



Male. Length 10— 15 lines. — Black : the head, thorax and coxae, den- 

 sely covered with rieh golden pile; the hinder margin of the vertex, and 

 an angular shape on the mesothorax anteriorly unadorned; the palpi and 

 tips of the mandibles riifo piceous; the antennae of a fulvous-yellow, the 

 scape and basal Joint of the flagellum niore or less fuscous; wings dark 

 fuscous, varying in intensity in different examples; the extreme apex paler, 

 scarcely hyaline; a rainute hyaline spot at the base of the second discoi- 

 dal cell; the scutellum elevated, the raetathorax transversely rugose sul- 

 cate, or deeply grooved, the posterior angles prominent and obtuse; the 

 tarsi, the intermediate tibiae at their apex, and the posterior tibiae enti- 

 rely, rufo-fiilvous, the calcaria fulvous; the claws black, Abdomen: the 

 basal Segment entirely, the second at its apical margin, the third at both 

 basal and apical margins, and the four apical segments entirely covered 

 with golden pile; the apical segments most densely covered at their 

 basal and apical margins. 



Hab. Brazil (Santarem) [Coli. H. W. Bates]. 



This in all probability is the male of P. s%miptuosa. 



4. Pepsis pulchella Pel. 

 Pepsis jnilchella St. Farg., Hym. III, 1845, 491, No. 37. 



Caput nigrum, coeruleo-viridi-pubescens, nigro pilosum. Antennae 

 nigrae. Thorax niger, caeruleo-viridi pubescens, metathoracis dorso trans- 

 verse striato. Abdomen subnudum, coeruleo - viride. Anus nigro villosus. 

 Pedes nigri; coxis femoribusque coeruleo-viridibus; pilis spinisijue nigris. 

 Alae subrufo-hyalinae, apice lato nigro; ncrvuris fusce ferrugineis; jjuncto 

 marginali, costa squamaque nigris. 



Nota. Praeter limbum et cellulam cubitalom (juartam, cellulas radia- 

 lem et cubitalem tertiam totas alae anticae aj>ex niger occupat. — Male. 

 Long. 11 lignes. 



Cayenne. Musce de M. Serville. 



