138 IIYMENOPTERA OF AMERICA. [TART I. 



9. Forms of a Monlezumia. Clypeus pyriform, strongly 

 punctured, bicarinate laterally, terminated by two angles or teetb. 

 Head and thorax very densely punctured; vertex offering a 

 depression on its hinder part. Thorax rather elongate, slightly 

 velvety ; metathorax extending a little beyond the scutelluin, 

 very coarsely and densely punctured above, wrinkled, velvety ; 

 its concavity striate, limited by edges, not very apparent, because 

 of the convex form of the two superior cheeks of the metathorax ; 

 and offering- on each side a dentiform angle. Abdomen silky, 

 almost velvety, punctured; its width augmenting as far as the 

 extremity of the 2d segment; first segment narrower than the 

 second, slightly funnel-shaped, and divided above by a groove ; 

 margin of the 2d a little bordered and densely punctured, as also 

 those following. 



Insect ferruginous. Antennas black above in their second 

 moiety; face varied with black; forehead and vertex black, with 

 a ferruginous arc. Thorax varied with black beneath ; mesotho- 

 thorax varied with black above on a red ground (or black varied 

 with ferruginous) ; abdomen fulvo-velutinous, silky ; base of 2d 

 segment obscure; border of the 1st yellow. TYings brown, with 

 golden and violet reflections. 



Bess. a. diff. — This species much resembles the M. egregia, but 

 the 1st segment of the abdomen is longer and the metathoracic 

 concavity is smaller and less flattened. The metathorax is more 

 convex at summit and the thorax is more punctured. The colors 

 are, without doubt, variable. It has much the same form as M. 

 californica, but the body is much more punctured ; the abdomen 

 densely so. 



Hab. Mexico. Oriental part. I caught a ? in the valley of 

 Cordova. 



11. M. egregia Sadss. — Staturse M. variabilis et illi conformis ; deDse 

 punctata; metauoto supra minus convexo, foveola laiiore, valde striata 

 utrinque dente arruata ; abdominis priino segmento breviore, autice 

 truncato; capite, thorace et abd. priino segmento, nigris ; segmentis 

 reliquis rufis ; clypeo, mandibulis, antennis, orbitis et in vertice fascia 

 arcuata. pronoto, scutellis, tegulis, lineolis 2 mesonoti, macula subalari, 

 lineolis 2 in metanoti canthis, tibiis, tarsis abdoniinisque segmentorum 

 limbo, aurantiacis ; alis ferrugineis. J . 



Variat. Pronoto fiavo-marginato. 

 Monnbia egregia Sauss. Vespides, III, 16S, 60; pi. iv, fig. 5, £ (1^54). 

 Bab. The Antilles? 



