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APEISTUS. 



191 





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genera. The numerous forms of small Truncatipennes more or less resembling the 

 familiar Dromii of north temperate countries have generally been considered closely 

 allied to each other ; and Chaudoir named the group Dromiides ; but the group has 

 never been defined, and the few words Chaudoir published regarding their points 

 of difference from his Callidides are full of inaccuracies. In fact a group Dromiides 

 is impossible of definition, including, as it does, such discrepant elements as Axinopalpus, 

 Dromius, Metabletus, and Demetrias. There is no reason, I think, why Metabletus 



should not be placed with the Cymindinse, its ligula and paraglossae being similar to 



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those of that group, whilst Dromius, in spite of the non-extension of the paraglossae 

 along the apical edge of the ligula, cannot be far removed from Plochionus. There are 

 still many exotic forms of these small Truncatipennes unexamined and unnamed in 

 collections ; and therefore our present arrangements can only be provisional. 



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APEISTUS. 



Apristus, Chaudoir, Enum. Carab. Caucas. p. 62 (1846) ; id. char, emend. Bull. Mosc. 1850, i. p. 65. 













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A genus of wide distribution, being spread over North America from high northern 

 latitudes to Panama, Northern Asia to Japan, the Mediterranean region, Tropical Asia 

 as far south as Ceylon and Burmah, and occurring also in Madagascar. Nineteen 

 species have been described. They are eminently terrestrial and cursorial, as much 

 so as the Tetragonoderinse, the unicolorous brassy species of which group some of the 

 Ajpristi at first sight much resemble. 





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1. Apristus mexicanus. 



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A. subceneo affinis, sed minor et gracilior, supra fuscescenti-cupreus nitidus ; elytris subtilissime reticulatis haud 



opacis, late striatis vel subsulcatis ; antennis, palpis pedibusque nigris ; thorace cordato, postice sat valde 

 angustato, angulis posticis acutis, dorso convexo basi depresso, linea longitudinali modice impresso. 



Long. 1|-1| lin. 



Eab. Mexico, Parada (Salle), Oaxaca (Salle, Edge) ; Guatemala, Capetillo, Cham- 

 perico, San Geronimo, Rio Naranjo (Champion). 



This species (Chaud 



MS. name for which I have adopted) is distinct from 



A. subsulcatus and A. laticollis, the 

 it may be the same as the following. 



only North- Am er 



species known 



me 



b 













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2. Apristus tropicalis. 



Apristus tropicalis, Motschulsky, Bull. Mosc. 1864, iii. p. 232 \ 



Eab. Panama, Obispo 



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The author likens his species to A. subsulcatus. It appears to differ from A. mexicanus 

 by its " nigro-seneus " colour, and from the following (A. longulus) by its deep punctured 



striae. 





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