144 LE CONTE.— LONGICORN COLEOPTERA. 



2. D. vENTRALis, " Black, puncate scabrous, abdomen fulvous, femora sometimes fulvous. 3 lines, or 4 to 

 the apex of the wings." 

 Tessaropa ventralis Hald. Proc. Am. Phil. Soc. 4, 374. 



I have not examined this species, which was discovered by Mr. Halderaan in 

 company with the preceding. As we have seen the color of the abdomen to be a 

 sexual character in Necydalis mellitus, it is quite possible that this may prove the 

 male of the preceding. 



METHIA Newman. Entomologist, 418.^ 



TAtaNewm. ib. 18. 

 " Caput pronum, prothoraci latius, oculi maximi, ad antcnnarum basin profunda emarginati, in verticem 

 fere conniventes : antennae graciles, hirsutas corpore [duplo longiores, 10-articulatge, articuli longitudine fere 

 sBquales, ultimo breviore excepto; articulus 2""^"' aut mihi invisus, aut ceterum moreelongatus; prothorax fere 

 cylindraceus, lateribus paulo convexus ; elytra linearia apice rotundata, abdomine breviora ; pedes simplices, 

 femoribus baud tumescentibus." 



1. M. pusiLLA. " Testacea, oculis nigris, antennis fuscis; prothorax fuscus, lineis 2 longitudlnalibus anticis 

 testaceis; elytra pallide testacea, humeris fascia pone medium undata apicibusque fuscis." Long. -2. 



Florida. I have never met with this insect : the greater size of the eyes, and the 

 length of the first joint of the antennse, seem to entitle it to be considered as a distinct 

 genus. 



Group 2. 



Consists of a single genus, presenting a curious assemblage of characters. The 

 form is cylindrical, the thorax narrower than the elytra, with an acute lateral spine 

 behind the middle, projecting obliquely backwards. The front is infiexed, the oral 

 organs are small; the mandibles truncate, and a little emarginate at tip. The 

 antennae are distant, the first joint very long and filiform. They are not all hirsute. 

 The real affinities of this insect are with Liopus and ^Edilis ; the mandibles and the 

 spinous thorax without any constrictions bear a resemblance to certain Dorcadioids. 



DECTES. 



Antennse non pilosae, articulo l"" elongato, cylindrico. 

 Frons canaliculata, antice inflexa, et convexa. 

 Acetabula antica extus angulata, postice hientia. 

 Femora non clavata. 



1 . D. SPINOSA, nigra punctata, undique pube brevi cinerea dense vestita, thorace cylindrico, pone medium 

 spina utrinque obliqua armato, elytris breviter nigro-pilosis, apice subtruncatis, antennis annulatis. 

 Long. 4. 

 Lamia spinosa Say. J. Ac. Nat. Sc. 5, 271. 



Pennsylvania and New York : rare. The antennae of the male are longer than 

 the body : the female has a very short truncate ovipositor. 



