44 HYMENOPTEUA OF AMERICA. [PART I. 



Zethus albopictus Smith, Gat. Brit. Mas. Vespidae, 1857, 15, 32. 



Hob. St. Domingo. 



33. Z. gracilis Smith.— Niger, capite et tliorace gross.- punctatis; 

 fronte sulco transverso inter antennas et carina verticali ad medium 

 clypeum producta instructo; metanoto in lateribus striato ; petiolo 

 sparse pnnotato ; abdomine sericeo : punctis 2 frontalibus abdominisque 

 mentorum limbo anguste, flavis. % antennarum scapo antice ilavo. 

 Longit, 4.', li n. — Affinis videtnr, Z. Montezumai. 



us gracilis Smith. Cat. Brit. Mus. Vespida, 1S57, 17, 43. 



Bab. Mexico. 



Small species, of the size of Z. Montezumse. 



3-1. Z. laeviiiotlus Smith. — J. Niger, capite grosse, vertice sparse, 

 punctato ; clypeo rugose striato, apice snbemarginato; thorace polito, 

 punctis distantibus aliquot; pronoti margine acute marginato, acute 

 angulato; mesouoto antice carina abbreviata, et sulcis 2 e scutelli 

 augulis emergentibus ad pronotum dnctis ; metanoto velutino, bi- 

 convexo. Thorax maculis 2 in pronoti augulis, macula-snbalari, post- 

 Bcutellique fascia interrupta, flavis ; abdomine polito; alis fusco-cyaneis. 

 Longit, '.» tin. 



Zitluix lecvinodus Smith, Cat. Brit. Mus. Vespidae, 1857, 17, 44. 

 I/'ih. .Mexico. 



By the fuscous wiiiirs this species comes near to Z. spinipes, 

 bul is separated from it by its distinctly polished niesothorax, and 

 by its remarkably large size. 



35. Z. pa 3 Sid us Smith, Cat. Brit. Mus. Vespidae, 1857, 11, 10. 



Hah. Brazil. (Num Zethusculus?) 



36. Z. SCIllpturalis Smith, ibid. 11, 11, %. 

 Hub. Brazil. 



37. Z. duMllS Smith, ibid. 13, 19, 9 % . 

 Hab. Brazil. 



3s. Z. carinatus Smith, ibid. 13, 20, %, 

 llul>. Brazil. 



