



















■ 









PEEIGONA. 



135 



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PERIGONA. 



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Perigona, Castelnau, Etudes Entom. p. 151 (1835) ; Putzeys, Ann. Museo Civico di Genova, iv. 















p. 218 (1873). 



* 



Nestra, Motschulsky, Bull. Mosc. 1851, iv. p. 506; Etudes Entom. viii. p. 37 (1859). 













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, Nietner, Ann. & Mag. Nat. Hist. ser. 3, ii. p. 428 (1858). 

 Siltopia, Castelnau, Trans. It. Soc. Victoria, viii. pt. ii. p. 127. 











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About twenty species of this much-misunderstood genus have been described. It is 

 very widely distributed, being found in the tropical zones of America and Asia (inclu- 



* 



ding the Malay Archipelago and Japan), in Africa, Australia, and Madagascar. If the 

 genus Trechicus, Leconte, is really synonymous, North America must be added to its 



range ; but, according to Dr. Horns recent observations, the mentum in Trechicus is 





















S.. . . 

























9 







without tooth in its emargination, as stated by Dr. Leconte, the original describer; and 



it is therefore doubtful if the North-American species can be admitted into the genus, 



all the species of which hitherto examined having a prominent tooth to the mentum. 



M. Putzeys states that the male tarsi have four joints " sqammuleux" beneath. If 

 this were really the case, the genus would be better placed in the group Quadripalmati 

 than in the same group as the Anchomeninse ; but I doubt the accuracy of this obser- 

 vation. In the larger species (e. g. P. Icevilateris) the squamse exist most certainly only 

 on three of the joints. 



1. Perigona laevigata. (Tab. VI. fig. 4.) 









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Mizotrechus lavigatus. Bates, Ent. Monthl. Mag. viii. p. 200 (1872) l . 



Hab. Mexico, Vera Cruz 1 , Cordova {Salle), Tehuacan, Oaxaca (Hoge); British 

 Honduras, Belize (Blancaneaux) ; Guatemala, near the capital, Cerro Zunil, San Juan, 

 Zapote, Las Mercedes ( Champion) ; Nicaragua, Granada (Salle), Chontales (Janson) ; 

 Panama, Volcan de Chiriqui, 2000-3000 feet (Champion). 



Distinguished by its subquadrate (slightly narrowed behind), smooth and flat pro- 















thorax, with obtuse hind angles 









2. Perigona cordicollis 





gusti 







foveis basalibus profundis. Castaneo-rufa, capite nigro, elytris (sutura excepta) fuscis lsevibus, palpis, 

 antennis pedibusque testaceo-fulvis. 









Long. If -2 lin. 



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Hab. Guatemala, Capetillo, Cahabon, Panzos, Cerro Zunil, San Geronimo (Cham 



pion) ; Nicaragua, Granada (SalU) 



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