METOPIINI 205 



Third antennal segment always very much shorter than the second . . 3 



3. Posterior coxae contiguous or nearly so METOPIELLUS 



Posterior coxae distant 4 



4. Elytra with no sutural striae METOPIOSOMA 



Elytra each with a well-defined sutural stria (PL XVIII) 



BARROMETOPIA new genus 



METOPIAS (Gory, 1832) 



Gory (1832) 

 AuBE (1833) 

 SCHAUFUSS (1872) 

 Sharp (1887) 

 Raffray (1904, 1908) 



This is the type genus of the tribe, and one of the first strictly neotropical 

 genera to be delineated. As now restricted it holds the following species: 



carinipes Rafifray. 1904. Yuracaris, Bolivia. 



curculionoides Gory. 1832. Cayenne, French Guiana. Genotype. 



elegans Sharp. 1887. Volcan de Chiriqui, Panama. 



elongatus Schaufuss. 1872. Amazonas, Brazil; Yuracaris, Bolivia. 



METOPIELLUS (Raffray, 1908) 



aglenus (Reitter). 1895. Blumenau, Brazil, con Tetratomium reitteri 



Mayr. 

 hirtus (Reitter). 1895. Sao Paulo, Brazil. Genotype. (Metopias) 

 silvaticus Bruch. 1933. Loreto, Misiones, Argentina, con ants. 



METOPIOSOMA (Raffray, 1908) 



pacificus (Westwood). 1856. Santarem, Brazil. (Metopias) Genotype. 

 barretoi Bruch. 1924. Sante Fe, Argentina, con Solenopsis richteri 

 Forel. cf. Bruch, 1929. 



METOPIOXYS (Reitter, 1885) 



The following key has been drawn up to separate the more numerous 

 species of this genus, two of which are new. The genus is unique in the tribe 

 in having the lateral pronotal margins spinose. Of the twelve known species, 

 ten are from Brazil, one from Argentina and one as far north as Colombia. 

 The genus is unknown from Central America or the Antilles. 



Key to the Species 



Large species, 2.3 to 3.3 mm. long 5 



Small species, 1.9 to 1.5 mm. long 2 



