11G IIYMEN0PTERA OF AMERICA. [PART T. 



even striate before; the second and the following abdominal seg- 

 ments densely and finely punctured. 



Insect of a shining black ; antennae black, the flagcllum ferru- 

 ginous beneath, both scutels ornamented with a band or with two 

 obscure yellow points. The two, often the three, first segments 

 of the abdomen, equally bordered with a submarginal edging of 

 the same color; that of the first segment continuing itself upon 

 the sides. Legs black. Wings transparent, with the anterior 

 edge blackish. 



9. Clypeus black or more or less tawny or yellow. 



Var. End of the abdomen slightly ferruginous; often two 

 tawny dots at the summit of the pro- and of the metathorax. 



% . Clypeus yellow, a little margined with black, strongly bi- 

 dentate; the teeth sharp, separated by a notch on the arc of a 

 circle. Hook of the antenme pointed, black or ferruginous. No 

 groove on the vertex. 



Bess. a. diff. — This species has some resemblance to the M. 

 sepulcliralis Sauss. Its form is quite like that of M. Leprieuri ; 

 one might be inclined to take it for a black variety of this species, 

 but the disk of the mesothorax is less strongly and the metatho- 

 rax less densely punctured in Huasteca than in Leprieuri. 



Hob. The Gulf side of Mexico. I caught several 9 % near 

 Tampico; some others have been taken near Orizaba. 



In this species the third joint of the labial palpi is almost as 

 long as the second and the form distinctly parabolic-pointed; 

 this article is very abruptly terminated and has no appendix. 

 The maxillary pal pi have their first article dilated ; the two fol- 

 lowing slender and long, the others smaller and smaller. 



5. M. ILepriefltriii Spin. — Nigra; capite, thorace abdominisque priino 

 segmento, valde cribratis ; abrtomine de reliquo tenuiter punctato ; 

 clypeo elongato, bidentato, scute! lis, metanoto, abdominis primi seg- 

 menti limbo, aurantiacis ; alis subinfuscatis, costa nigra. 



% . Clypeo, aurantio; supra et lateraliter nigro-marginato ; pronoti mar- 

 gine postico et macula in basi mesonoti disci, aurautiis. 



Varidt autennis subtns ferrugineis ; secundo abdominis segmento, flavo- 

 limbato; reliquis margine pieeo. Longit, 0.015. 



Odijnerus Leprieurii Spinola, Ann. Soc. Ent. Fr. X (1841), 127, 7S. 

 Montezumia pelagica Sauss. Vespides, I, 93, 11, pi. xii, fig. 10, 9 (1852). 

 Montezumia Leprieurii Sauss. Vespides, III, 160. 



Hab. Brazil. Cayenne. 



