kONTEZUMIA. 117 



Observation. — The specimen described by Spinola has the 

 wings faded, ferruginous. 



Division MONTKZUMIA (propr. diet.). 



Head dilated. Ciypcus truncate or bidentate. Metathorax 

 offering two convex cheeks, unarmed, separated by a furrow. 

 Abdomen fusiform; the first segment funnel-shaped, but enlarged 

 above, capable of retracting more or less of the following one. 



In this division the forms are rounder; the first segment is 

 less enlarged above, it does not present a superior and anterior 

 face; it becomes more funnel-shaped and wider, which gives to 

 these insects the appearance of Foliates with which they have 

 often been confounded. 



1. Abdomen pedieulate. The first moiety of the first segment 



linear. 



Division ALPHA. 



(Sadss. Vespides, I, 88; III, 160.) 



6. M. ccerialea Sauss. 9 ■■ — Valida, n igro-c-cen.il ea ; abdomine cceruleo 

 clypeo piriformi, punctato, apice subeniarginato, subbidentato ; capita 

 et tborace densissime granulato-punctatis, fulvo-birtis ; metanoti 

 sulco striato; pronoto angulato, cristato-marginato ; abdomine fusiform] ; 

 tenuiter dense-punctato, primo segmento basi petiolato, in primo dimi- 

 dio lineari, dein infundibuliformi, in medio subbidentato, supra subo 

 prof undo punctiformi canaliculato ; pedibus ferrugineo-sericeis ; an tennis 

 subtus ferrugineis ; alis nigro-cyaneis. Longit, 0.023. 



Variai. clypei margine, tarsorum articulo ultimo, scutelli fascia, rufis. 



% . Clypeo truncato ; antennis ferrugineis uncinatis. 



Montezumia cocrulea Sauss. Vespides, I, 90, 5 ; pi. xii, fig. 8, $ (1S52); 



III, 160. 

 M. rubrit arsis Sauss. ibid. I, 90, 4. 



M. rufipes Sauss. ibid. I, 89, 3 ; pi. xv, fig. 1, £ (1852) ; III, 160. 

 Odgnerus azurescens Spinol, Mem. Acad. Turin, xiii, 1853, 82, 62, $ . 



llab. Brazil. Para. Rio Janeiro. Guyana, Cayenne. 



1. M. azMrcliM'ifliiis Sauss. — .1/. ccendea Bimillima, at abdomine 

 nigro; primo segmento suloo parum profundo et utrinqae lima angu- 

 lata llava instructo; alis nigro-coeruleis. 



%. Clypeo rubro, truncato, subbidentato, antennia uncin.-.tis. 



