540 Mr. Vigors on some new subjects of Zoolog}/. 



subnitida. Tibice ani'icdi quatuor dentibus instructae, tribus anlFcis 

 acutis, quarts fere obsoleta. 



Long. Corp. -^^ ; lat. \. 



Faem. Capitis cornu fere obsoletum. Thorax glaber, convexus, 

 llnea elevata brevi transversa, duobusque f ul)(Mculis mediis pariim 

 elevatis nigris instructus ; angulis punctisve nuUis. Elytra^ 

 tibiwque antica? ut in mari. 



Long. Corp. -/(J ; lat. i. 



Habitat in Brazilia. 



In Mus. nost. 



This insect belongs to Mr. Mac Leay's fifth form of the genus 

 Phanceiis, of which the well known North American species P. 

 carnifex is the type. But though it agrees with that division iu the 

 essential points of the form of the thorax and the pectus^ it evi- 

 dently deserts the typical character, and evinces an approximation 

 to the first form of the same genus, represented by P. bellicosus 

 and lancifer, in the emargination of the clijpeus^ and the appear- 

 ance, although nearly obsolete, of the fourth tooth on the ante- 

 riour tibUe. Other species in Mr. MacLeay's cabinet complete 

 this circle of affinities. This species, therefore, affords much in- 

 terest to the inquirer into affinities, by thus adding a further 

 illustration of the gradual process by which nature passes from 

 one form into another. 



I have named this insect in honour of the distinguished authour 

 of the " Monographia Apum Anglia*," Avhose experience and 

 valuable instructions have been among my best guides in Entomo- 

 logy, and whose friendship and kind encouragement among my 

 chief supports in my advances through the science. 



Stirps. Pktalocera Thalerophaga. Mac L. 

 Fam. Melolonthiu,?5. Mac L. 

 Genus. EuciiLOUA. Mac L. 



MacLeayan-\. Eu. pallide viresccns, capiie thoraceque punctis 

 aureis confertis splendentibus ; elijtris punctatis Jlavo-iiiargi- 

 nuiis ; corpore siibtus pedibusque aureo-cupreis. 

 Tab. 20. f, 7. 



