OF AMERICA NORTH OF MEXICO. 155 



LYPSIMENA4 Dej. 



Antennse elongatoe, setacese, subtus parce fimbriatae, articulis a 3'° subsqualibus. 



Oculi emarginati. 



Thorax cylindricus, postice subangustatus. 



Femora vix clavata, tarsi unguiculari longo, unguibus simplicibus. 



Tibise posticae subcompressEe. 



The body is shaped like Saperda, from which it is distinguished by its short front. 

 From Mecas it is known by its long, slender, regularly fimbriate antennse, and longer 

 and sub-compressed posterior tibise, the posterior tarsi are narrower than usual, and 

 the first joint is sulcate beneath ; a character I have not found in the allied genera. 



1. L. ruscATA, fusco-pieea, parce breviter cinereo-pubescens ; thorace postice subangustato, lateribus subsi- 

 nuatis, coafertim puactato, elytris sat dense puactatis, lineis aagulatis miaus distinctis subvariegatis, 

 apice rotundatis. Long. -26. 



One specimen, New York. This species is mentioned in Dejean's Catalogue. 



MECAS. 



Antennae filiformes, parce vix ciliatse, articulis a 4'°gradatim viz brevioribus. 

 Oouli emarginati. 



Tarsi articulo ultimo mediocri, unguibus integris : femora non clavata. 

 Palpi articulo ultimo ovali. 



This genus has entirely the appearance of Stenostola, except that the thorax is 

 without any smooth callus : it is at once distinguished by its simple ungues. From 

 Saperda it differs by its short sub-convex front. 



1. M. PEMORALis, plumbeo-nigra, cinereo-pruinosa, parce breviter pilosa, thorace confertim, elytris grossius 

 punctatis, apice rotundatis, femoribus rufis, tibiis taxsisque fuscis. Long. -3. 

 PhytoRcia femoralis Hald. 57. 



Georgia, rare. Phytoecia is described as having dentate ungues, and should pro- 

 bably be united with Stenostola. 



TETROPS Kirby (1826.) 



Polyopsia Muls. (1839.) Oheropa Hald. Anaetia ^Dej. 



Ungues basi dcnte lato armati. 

 Oculi divisi. 



Palpi articulo ultimo tenui apice acute 

 Tarsi articulo ultimo brevi. 



The antennse are filiform, and sparsely ciliate, as in Tetraopes, from which this 

 genus differs by its more slender form. Mulsant has erroneously described the 

 ungues as simple. I have examined the European species, and find it in this respect 

 precisely like our own. 



