SQ2 APPENDIX. 



ferior carinje are lliree elevated lines converging towards 

 the eye ; superior carina of the horn continued upon the 

 back to the tipj lateral carina of the horn continued upon 

 the side to the middle of the thoracic edge; carina of the 

 back slightly undulated, with two yellowish spots, of which 

 one is on the middle and the other near the tip smaller and 

 placed nearer to the anterior one than its own length ; tip 

 acute ; anterior and intermediate tibise dilated, foliaceous ; 

 posterior tibia with two serrated lines behind ; hemelytra 

 opaque, much longer than the abdomen ; wings hardly 

 longer than the abdomen. 



Length including the horn seven-twentieths ; exclusive 

 of the horn more than one-fifth of an inch. 



The eyes are very nearly equidistant between the tip of 

 the horn and of the hemelytra. It very closely resembles 

 the lanceolata, Fabr. an inhabitant of South America, of 

 which it may possibly prove to be a variety. 



5. M. latipes. Thorax with a compressed, porrect horn ; 

 body fuscous, immaculate. 



Inhabits United States. 



Body fuscous, punctured ; hemelytra paler ; thorax, 

 horn extended in a line with the back and slightly decurv- 

 ed at tip ; but in other respects resembling that of the pre- 

 ceding species ; back immaculate ; posterior tip acute ; hem- 

 elytra paler than the thorax ; nervures fuscous. 



Length equalling the preceding species. 



This species very closely resembles the binotata, but 

 the horn has a very different direction ; the back is desti- 

 tute of spots, and the hemelytra seem to be of a more 

 membranaceous texture. 



