818 Roh. Lucas: 



nervuris, puncto marginali costaque nigricantibus ; squania nifjra — Femelle. 

 Long. 1 pouce 2 lignes. 



Sans patrie. Musee de M. Serville. 



27. Pepsis cyanescens Pel. 

 Pepsis cyanescens St. Farg. Hyni. Ill, 1845, pag. 485, No. 26 (f. 

 Caput nigrum, nigio pubescens villosuniqne. Antennae nigi'ae. Tho- 

 rax niger, nigro pubescens villosusque; metathoracis dorso villosiori. Ab- 

 domen nigrum, nigro-caeruleo pubescens. Anus nigro pilosus. Pedes nigri. 

 Alae nigrae, violaceo-caeruleo micantes, viridique subnitentes; nervuris, 

 puncto marginali, Costa squamaque nigris. — Male. Long. 1 1 lignes. 

 Sans patrie. Musee de M. Serville. 



28. Pe/psis obscura Pel. 

 Pq)sis obscura St. Farg., III, 1845, pag. 490, No. 35 (f. 



Antennae nigrae. Caput nigro-caeruleura. Thorax nigro-caeruleus, viridi 

 nitens. Scutellum maxime elevatum. Metathoracis dorsum transverse stri- 

 atum, linea media longitudinali maxime Impressum, linea transversal! elevata 

 terminatum. Abdomen nigro-caeruleuni, pube brevi, densa, nigra viridi 

 nitente vestitum. Pedes nigro-caerulei. Pili nigri. Alae nigro-violaceac. 

 — Femelle. 



Mas. Omnes partes violaceo-nigrae, obscure viridi nitentes. Alae viridi- 

 aureo nitentes. 



Bresil. Musee de France. 



29. Pepsis piirjyurascens F. Sm. 

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

 the Brit. Mus. III, 1855, pag. 194, No. 19 Q. 

 Female. Length 9 lines. — Black, adorned with changeable rieh purple 

 pile; the antennae have the scape rufo-piceous in front, the flagellum fuscous 

 above, rufo-fulvous beneath, the labrum, niandibles in the middle, and the 

 palpi rufo-testaceous; metathorax elongate, transversely striate and chan- 

 neled down the centre; the sides of tlie scutellum and base of the meta- 

 thorax exhibiting in certain lights a golden eft'ulgence; wings rufo-fuscous, 

 their extreme apex hyaline; the legs have a rieh purple iridescence, with 

 a golden reflection in certain lights. Abdomen subpetiolate, bright purple, 

 the apical niargins of the Segments obscurely rufo-piceous. 

 Hab. Brazil (Santarem). (Coli. H. W. Batcs). 



30. Pepsis decolorata Pel. 

 Pepsis decolorata St. Farg., Hym. III, 1845, pag. 474, No. 7 Q. 



Caput nigrum, nigro pubescens pilosumque. Antennae, articulis (duobus 

 saltem baseis, caeteri desunt) nigris. Thorax niger, nigro pilosus; meso- 

 thorace supra longitudinaliter unicarinato, metathoracis dorso transverse 

 striato, longitudinaliter quadricariuatu. Abdomen nigrum, subnudum, ano 

 rufo-fusco, pilo&o. Pedes nigri, nigro pilosi spinosique. Alae lerrugineae, 

 apice decolori; nervuris ferrugineis, puncto marginali, costa squamaque ni- 

 gris. — Femelle. 



Cayenne. Musee de M. Serville. 



