South American EiiymolpidcV. 4G9 



Hah. Colombia {Pehllc), Mus. Stettin and my col- 

 lection. 



This insect docs not resemble much the type of the 

 genus — G. m.arginicollis, Lef., which is a highly metallic 

 species of much larger size and somewhat differently- 

 shaped thorax, but I cannot find a better place for it. 

 Eujjhrytus, Jac, bears a much stronger resemblance to 

 it, but differs in the strongly narrowed presternum, which 

 in G. lenca is broad ; in Tymncs, which is of similar 

 shape, the anterior margin of the thoracic episternum is 

 convex. 



COLASPINiE. 



A fairly well-marked group, principally distinguished 

 by the dentate or angulate sides of the thorax, the filiform 

 antennge and (with one exception) entire tibiae. Lefevre 

 places 23 genera in this group. Of these the genus 

 Golaspis contains most species, being numerously repre- 

 sented in South and Central America; a good monograph 

 of this genus is niucli needed, as it contains nearly 200 

 species, often extremely closely allied and variable. From 

 Golasjns the genus BhaMoptems may be known by the 

 wider thorax, which gives the insect a different appear- 

 ance, the prosternum is also much broader and less con- 

 stricted at the middle, and the sides of the thorax are 

 never dentate. Metaxyonyclia is often more difficult to 

 separate from Golaspis, but has the intermediate tibiae 

 more or less emarginate at the apex and the thorax of 

 more equal width. 



Metaxyonyclia liogotensis, sp. n. 



Reddish fulvoui^, antennoa (the lower two or three joints excepted) 

 black, thorax bidentate at the sides, deeply transversely foveohite 

 and punctured, elytra metallic green, very strongly and closely semi- 

 rugose punctate, a transverse band at the middle, the lateral margins 

 and the apex fulvous. 



Length 10-12 millim. 



Fern. Head strongly punctured between the eyes, anteun;e slender, 

 black, the lower two or three joints fulvous ; thorax twice as broad 

 as long, the sides obsoletely biangulate at the middle, the disc with 

 a transverse depression at each side, strongly and irregularly punc- 

 tured, more closely so within the depressions, scutelluni fulvous ; 

 TRANS. ENT. SOC. LOND. 1900.— PART IV. (DEC.) 32 



