

BYMENOPTERA OP AMERICA. [PART I. 



i na ] bend, which is sometimes entirely tawny. The yellow 

 or tawny border of the prothorax is interrupted by some black 



Var. Size small, 13 mill. Prothorax black. 



/; ... ,, faff. Approaching to Z azlecus, but very distinct 



;rnent being- sensibly longer; by 

 the petiole, of which the inflation is more lengthened, which dues 

 not form any prominence above and which is nut strongly punc- 

 tured. 



Hub. rheho 3 of the gulf side of Mexico. Tampico. 



X. B. The type from which I first described this species, I. I, 



has the "eticmette" Pefion de los Banos, a locality of the valley 

 f M >n). This should be an error of the 



r I have myself taken this species in the region 

 approaching the hotter zone of Mexico. 



11. Z. Jui'inci Sadss. — Gracilis, niger,nitidns ; capiteet thorace tenui- 

 ter punctatis (pnuctis quasi obliteratis) ; hoc nitido, metanoto brevi, albi- 

 . planato. Petiolus ovatus, valde dilatatus ft maxime depiessus, 

 nitidus, vix punctatus ; secundum abdoni. segmentnm basi petiolatum, 

 .l.-in globoso-dilatatum, at petiolus nitidissimum ; segraenta reliqua 

 punctata. Pro'noti uiargo, macula subalaris et tegularuin liuibns posti- 

 itello, maculae 2 rotundatae in metanoti parte imma, 

 flava; abd. segmentomm limbus tenuissime albidus vel flavus. AI33 

 infuscat®. Longit, 0.015 mm. 



%. Clypeus flavus, sericens, superne niger, et margine tenuissime nigro, 

 subbidentato ; antennae subtus apieem versus fulvse. 



$> . Clypeus integer subtruueatus, uiger, sublaevis. 



Zetl 3S. Vespides, I, 1852, 15, 13; III, 118; Revue Zool. X, 



-. 162. 



. Antilles? South America. Caracas. (Typus in museo 

 ; et Saussuriano.) 



l'l. Z. nigricornis n. sp. — Nigerrimus, nitidus, punctulatus; meta- ■ 

 thorace ft abdomine cinereo-sericeis : abdominis petioli margine et linea 

 subtnarginali augusta _ segmenti, sulfureis ; alis infumatis, costa nigra ; 

 utennis ft clypeo planato nigris, % clypeo albido, margine tenuiter 

 nigro; antennarnm flagello subtus albido-annulato ; tibiis interniediis 

 tinea albulanrnatis. 



9 % . Total length 15 mill. ; wing 10 mm. 



The Bame form ami sculpture as Z. azteeus. Jet black, im- 

 maculate, having only the yellow border of the petiole and a very 



