TRAPEZIDERA. 17 



Trapezidera. 



Mots. Schreuch Iic/'sr, ii. 214 (typ. angusticollis, Mots.). 



Auteiina' with a r)-joiuted club, ord joint scarcely longer than 

 4tli; thorax very elongate, base margined, (leei)ly sinuate on eacli 

 side, the niargiual line nearly straight, thus leaving a producc^d 

 triangle in front of the scutelluin; elytra sejmrately rounded at the 

 base, the a})ex rounded, denticulate; no coxal line; head without 

 stridulatiug plate, with a lateral impressed line between the eyes. 



Trapezidera prolongata, sp. n. 



Elongata, postice a.ngustata, tota ;enea, nitida, ubique subtilissi- 

 me alutacea, parce subtiliter punctulata, elytris obsolete subseriatim 

 l)unctidatis. L. 9 lin. 



Nicaragua. 



var. ? mexicana. Smaller, thorax hardly visil)ly, elytra more 

 strongly punctulate. L. 7 lin. 



Mexico. 



Trapezidera chalcea, sp. n. 



T. pi'oloiif/rifcr affinis, sed minus elongata, humeris latioriltus, 

 postice acuminata, thorace basi fere truncato (in medio producto), 

 sat crebre punctulato; elytris punctatostriatis, interstitiis crebre 

 punctulatis; pedil)us plus minusve ieneo-rufis. L. G— 7 lin. 



Mexico. 



Trapezidera aenea, sp. n. 



Elongata, a^nea, postice acuminata, thoiace elongato-quadrato, 

 crebre punctulato, basi utrinque sinuato, medio paulo producto, 

 striola abbreviata utrinque impresso; elytris crebre punctatis, 

 seriebus punctorum vix distinctis; abdomine subtus rufo-teneo. 

 L. Q—U lin. 



Mexico. 



Differs by the broader form, acuminate behind, and the basal 

 stria on the thorax ; the median lobe is very little marked. 



Trapezidera angusticoUis.* 



Trapezidera a7igusticollls, Mots. Schreuck Reise, ii. 2-14. 

 Central America. 



Trapezidera brunnipes.* 



Trapezidera hrunnipes, Mots. ScJirenck Reise, ii. 244. 

 Central America. 



Trapezidera longicoUis.'^ 



Trapezidera loncjlcollis, Mots. Schrenck Reise, ii. 244. 

 Nicaragua. 



c. II. 2 



