152 



PROCEEDINGS OF THE NATIONAL MUSEUM. 



VOL. XXXVI. 



Measurements. 



The type alone has been examined. 



Genus MACH^^ROPOLES, " new. 



A member of the Vilernx, but not closely allied to any of the other 

 genera of the group. It is immediately separable by its elongate 

 form, produced fastigium, and strongly retreating face. Some of 

 the characters which appear to show relationship to other genera of 

 the group previously mentioned are the form of the antennae, the 

 structure of the fastigium, the character of the frontal costa and 

 facial caringe, the tegminal venation and the structure of the limbs. 



Body elongate fusiform. Fastigium produced, rostrate; face 

 strongly retreating; frontal costa entire, sulcate, subequal dorsad, 

 inflated ventrad ; eyes elliptical to ovate, hardly prominent ; antennae 

 serrate ensiform. Pronotum straight, median carina very slight, 

 transverse sulci weak, no distinct lateral angles present. Tegmina 

 elongate, subequal, exceeding the abdomen, apex rounded, an irreg- 

 ular intercalary vein present. Wings ample. Prosternal spine com- 

 pressed, retrorse. Meso- and meta-sternal lobes contiguous or sub- 

 contiguous. Supra-anal plate of the male armed with numerous 

 small nodes; subgenital plate compressed. Ovipositor jaws of the 

 female slender. Median and cephalic limbs small. Caudal femora 

 moderately robust; caudal tibiae armed on the external margin with 

 seven spines, on the internal margin with ten, no apical external 

 spine present. 



Type. — Machseropoles rostratus, new species. 



MACHiEROPOLES ROSTRATUS, new species. 



Tyjyes. — Male and female. Chapada, Matto Grosso, Brazil. 

 August (female), September (male). (H. H. Smith.) Cat. No. 12095, 

 U.S.N.M. 



Size medium; form very elongate fusiform, slightly compressed, 

 venter flattened; surface more or less thickly punctate. Head with 

 its dorsal length equal to (male) or slightly shorter than (female) 

 the dorsal length of the pronotum; occiput horizontal; interocular 

 space slightly less (male) or more (female) than half the fastigial 

 width; fastigium slightly ascending, subequal in width proximad, 

 acute-angulate distad, the disk with a slight medio-longitudinal 

 carina distad and a pair of low lateral carina diverging cephalad, 



C'MaxcxiponooX}]^, signitying a vender of swords. 



