27 



Hystcroptcrnm montcz\ima sp. nov. 



Differs from H. montannm by the much shorter vertex, the 

 angiilate (or at least medially deflected) clypeus, the color, etc. 



Testaceous, irregularly and obscurely, clouded more darkly. 

 On the frons there are two transverse, obscurely indicated, pale 

 bands, the rest minutely and thickly speckled. Tegmina greyish- 

 testaceous, a broad blackish wedge from hind angle of scutellum 

 to near the costal margin, as the base, the third angle about the 

 middle of the tegmen a little inward; the two third angles (on 

 each tegmen) are joined by an obscurely indicated dark, sinuate, 

 transverse bands. The rest of the tegmen is closely specked more 

 darkly. Abdomen and legs yellowish-testaceous, irregularly 

 marked with black. Although the vertex is short, yet the frons is 

 distinctly longer than wide, and there is a median percurrent keel 

 which thickens in the clypeus. Pronotum nearly twice as long 

 as the head. Scutellum rather obscurely tricarinate. 



Length 4.25 mill. : breadth 2.8 mill. 



Hab. : Mexico, Cuernavaca and Yantepec (Koebele). 



