occurring in the Coleoiiterous family LycidcB, ^'c. 99 



Apical joint of maxillary palpi small, acuminate at the 

 apex. Elytra with four carince, the interstices with trans- 

 verse nervures. 



Type, C basalis, Leconte. 



Genus 13. Emplectus, Er., Wiegm., Arch., 1847, p. 82. 



Rostrum none. Apical joint of maxillary palpi nar- 

 rowed at the apex. Antennas compressed, simple. 

 Thorax with a mesial carina divided in the middle into 

 two. 



Hab. — America. 



Type, E. bimaculatus, Er. 



Genus 14. 



Rostrum none. Apical joint of maxillary palpi elon- 

 gate securiform. Antennas long, each joint with a long 

 lamellate branch springing from its apex. Thorax with 

 a mesial carina, which is double in the middle. Elytra 

 with nine costte (only four distinct), the interstices with a 

 row of punctures. 



Type, C. tristis, sp. n. 



Calopteron sinuatus, Kirsch., is evidently allied to 

 this. 



Note. — Besides the above American forms, there are 

 numerous others usually placed with Calopteron and Em- 

 plcctus, but which differ so much from each other, and 

 fi-om both these genera that they should be separated. 

 See Kirsch. in Berl. Ent. Zeit. 1865, ix. p. 54, where a 

 very good table is given. 



Genus 15. Lyponia, gen. n. 



Rostrum none. Teguments thin. Antennse with long 

 stout branches to the joints. Thorax subquadrate, with 

 a mesial impressed line on the disk. Elytra with nine 

 costae, the alternate ones more pronounced, the first, 

 second and third not reaching the apex, the fifth and 

 seventh joining the sixth some distance from the apex, 

 the interstices with transverse nervures. 



Type, L. debilis, sp. n. 



Genus 16. 

 Rostrum none. Antennas very slender, simple. Apical 

 joint of maxillary palpi subquadrate, oblique at the apex. 

 Thorax shining, even, Avith only a slight longitudinal 



h2 



