13S HYMENOPTERA OF AMERICA. [ PART. I. 



9. Forms of a Montezumia. Clypeus pyriform, strongly 

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

 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 scutellum, 

 very coarsely and densely punctured above, wrinkled, velvety; 

 ii - 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, 

 almosl 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 aud densely punctured, as also 

 (hose following. 



Insect ferruginous. Antennae black above in their second 

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

 a ferruginous are. 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 

 segmenl obscure; border of the 1st yellow. Wings brown, with 

 golden and violet reflections. 



Ress. a. diff. — Tills species much resembles the M. egregia, but 

 the 1 >t segmenl of the abdomen is longer and the intrathoracic 

 concavity is smaller and less flattened. The metathorax is more 

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

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

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

 ly so. 



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

 Cordova. 



II. M. egregia Sauss.— Staturse M. variabilis et illi con form is ; dense 

 punctata; metanoto supra minus convexo, foveola latiore, valde striata 

 utrinque dente armata; abdominis priino segtnento breviore, antice 

 truncate; capite, thorace et abd. primo segmento, nigris ; segmentis 

 reliquia rufis ; clypeo, mandibulis, autennis, orbitis et in vertice fascia 

 arcuata, pronoto, seutellis, tegulis, lineolis 2 mesonoti, macula subalari, 

 linpclis 2 in metanoti canthis, tibiis, tarsis abdominisque segmentoruin 

 limbo, anrantiacis ; alis ferrugineis. £>. 



Variaf. Pronoto flavo-raarginato. 

 Monobia eyreijia Sauss. Vespides, III, 168, 60; pi. iv, fig. 5, 9 (1S54). 

 Hab. The Antilles? 



