die Pompiliden-Gathmg Pepsis. 815 



natus. Pedes iiigri. Pili nigri. Alae nigro-violaceae, margine postico 

 minus opace. — Male. 



Pensylvanie. Musee de M. Sorville. 



17. Pepsis gracilis Fei. 

 Pepsis gracilis St. Farg., Hym. III, 1845, pag. 474, No. 8 9- 



Caput nigrum, nigro pubescens pilosumque. Antennae articulis, tri- 

 bus primis nigris, caeteris Uiteo-ferrugiiieis. Thorax niger, nigro pubescens 

 pilosusque; metathoracis dorso transversa striato. Abdomen nigrum, sub- 

 nudum, ano supra subrufo-fusco, piloso. Pedes nigri, pilis spinisque nigris. 

 Alae ferrugineae, ante apicem fuscae, apice, ipso subdecolori; nervuris fer- 

 rugineis; puncto raarginali, Costa squamaque nigris. 



Nota. Corpus pro statura gracilius. Forsan in vivo partes nigrae 

 subcaeruleo raicant. — Femelle. Long. 1 pouce 6 lignes. 



Cayenne. Musee de M. Serville. 



Steht niöglichei weise der P. gracillima Tasclienb. nahe. 



18. Pepsis fuscix^ennis F. Sm. 

 Pepsis fiiscipennis Smith. Annais and Mag. Nat. History, ser. IV, 

 tome Xll, 1873, pag. 50 $. 



Female. Length 9—111/., ii,ies Head and thorax obscurely blue; ab- 

 domen black, exhibiting a blue lustre in certain lights. Head antennae 

 pace yellowish white with the scape and three, or sometimes four, of the 

 basal joints black; the third and the fourth joints also occasionally raore 

 or less covcred with pale golden pile; and transversely striated; wings 

 fu.scous, not darkly so with the apex of the anterior pair milky white; 

 legs obscure blue; the tibiae and tarsi thickly set witii short spines. Ab- 

 domen ellipticai ; the second and three foUowing segments with two very 

 obscure, divergent ferruginous lines in the middle. 



Hab. Ega; Para. 



This may possibly be the Pepsis elongata of St. Fargeau in very fine 

 condition, having golden pile on the metathorax; it has the wings paler, 

 and it also differs in having the tips of the anterior wings pale; still I 

 have a suspicion of its being a local variety. P. elongata is from Surinam. 



19. Pepsis errans Pel. 

 Pepsis errans St. Farg. Hym. III, 1845, 483, No. 22 Q. 



Caput nigrum, nigro pilosum. Antennae articulis baseos quinque ni- 

 gris, sexto septiraoque supra nigris, subtus luteis, caeteris quinque luteis. 

 Thorax niger, nigro subpubescens; metathoracis dorso Iransverse striato. 

 Abdomen nigrum, nigro subpubescens. Anus niger, nigro pilosus. Pedes 

 nigri, pilis spinisque nigris. Alae nigrae, opacae, violaceo nitentes; ner- 

 vuris puncto marginali, Costa squama([ue nigris. — Femelle. Long. 1 pouce 

 2 lignes. 



Nota. Forsan color niger in vivo coerulescit. Patrie inconnue. Mu- 

 see de Serville. 



