CHRYSOMELID BEETLES, CHLAMISESTAE — MONROS 463 



Prosternum. — Anterior half of pentagonal shape, prolonged pos- 

 teriorly into a narrow ridge between the coxae. 



Legs. — Moderately long and robust: the last tarsal joint rising one- 

 third its length above the lobes of the third. 



Abdomen. — Sides of the first visible segment without lateral tubercle; 

 pygidium somewhat elongated and also corroded, with a complete 

 feeble median longitudinal ridge. 



Color. — Holotype: cinnamon-yellow, with irregular black spots 

 arranged approximately as follows: Central part of metathorax and 

 abdomen four small pygidial spots; a broad femoral ring on all 

 legs; tibial spots occupying the apical third on all legs; a small spot 

 on the base of each antenna; pronotum and elytra with irregular 

 spots, arranged as may be seen in figure 90 and not symmetrical on 

 both sides of the body. Para type: a rusty orange and the black spots 

 (especially those on the pronotum) much reduced. 



Measurements. — Holotype length 3.4 mm., breadth 2.3 mm.; para- 

 type length 3.5 mm., breadth 2.3 mm. 



Type. — In the collection of the Deutsches Entomologisches Institut, 

 Berhn; paratype in the U. S. National Museum, U.S.N.M. No. 59908. 



Distribution of material. — Paraguay: San Bernardino (1 holotype, 

 Fiebrig collector, in the collection of the Deutsches Entomologisches 

 Institut, Berlin) ; Sapucay, February (1 paratype, T. E. Foster collector, 

 in the U. S. National Museum collection). 



Remarks. — This species belongs to Lacordaire's eighteenth group 

 and may be recognized easily by its peculiar coloration taken in con- 

 junction with the prosternal shape. 



U. S. GOVERNMENT PRINTING OFFICE: 1951 



