'iZ J. L. LECONTE, M. D. 



t 



c. 



4. M. fragilis Lee, Pr. Ae. Nat. Sc. Phil, v, 346 =: transversus Leo. ibid, v, 346. 



I have taken advantage of this synonymy to suppress the latter specific name 

 as more likely to produce confusion. 



5. M. exilis Mels. ibid, ii, 305. 



6. M. fusculus Lee. ibid, v, 346. 



7. M. rectus n. sp. ante, 61. 



8. M. curvatus n. sp. ante, 61. 



9. M. furcifer n. sp. ante, 62. 



10. M. arcifer n. sp. ante, 62. 



11. M. captiosus n. sp. ante,' 61. 



12. M. fuliginosus Lee, N. Sp. Col. 93. 



13. M. niger Loc, Proc. Acad. Nat. Sc. Phila. v. 346. 



Unclassified females. 



14. M. analis n. sp. ante, 62. 



15. M. congruus n. sp. ante, 62. 



16. M. quadricoUis n. sp. ante, 63. 



17. M. parvulus Lee, Proc. Acad. Nat. Sc. Phila. v, 346. 



Undetermined species. 



Luciola maculicollis Lap. Ann. Ent. Soe. Fr. ii, 148. This genus does not occur 

 in America. 



Cantharis vittata Fabr. Ent. Syst. i, 219. 



Cantharis rufipes Say, Journ. Acad. Nat. Sc. Phila. iii, 182; ed. Lee. ii, 118. 

 Tlie form of the claws not being given, this name may be referred to several 

 sjwcies of Telephorns. 



Cantharodema marginipennis Lap. Hist. Nat. Col. i, 276. 



Malthodes ruficollis Kiesenwetter, Linn. Ent. vii, 320. 



In concludiiiii' this paper, I have only to regret, that although, several 

 of my friends, who have collaborated with me, for the procuring of 

 material to render it as perfect as possible, the position and affinities of 

 the tribe Phengodini must still remain uncertain, in consequence of the 

 ignorance in which we remain in regard to the habits of the species, and 

 the form of the females. It may be inferred from the observations of 

 Mrs. King on the larva and male imago of Mastinocerus that they are 

 luminous in all stages of development. This inference must, however, 

 be confirmed by those who have the opportunity of observing in a living 

 condition the genera and species of the tribe, which as will be seen in 

 the foregoing pages are widely distributed. The male of Pterotiis, as 

 I have been recently informed by Mr. Rivers, flies in the evening twilight, 

 but I have not yet learned if it has any luminous power. 



