134 Mr. G. C. Champion's Revision of the 



iii, p. 460 (1830) ; Leconte, Trans. Am. Ent. Soc. ix, 

 p. 43 (1881); Gorh., Biol. Centr.-Am., Coleopt. iii, 

 2, pp. 68 (1881), 277 (1885). 

 Daiphron, sect. II, Gorh., loc. cit. p. 68. 



Chaidiognathus includes a large number of American 

 forms, the species from New Guinea and Australia referred 

 to it by Bourgeois and Pic probably requiring a separate 

 genus for their reception. It is apparently replaced in 

 the Antilles by Tylocerus. The forty species here enumer- 

 ated (including C. morio, which is Brazilian) may be 

 grouped thus : — 



A. Species Telephoriform in (J, Lyciform in some 



of its varieties in $ ; head large in J', small 

 in $ ; antennae rather short, the intermediate 

 joints broadly widened and subserrate in 

 both sexes. [Daiphron, Gorh., part.] . . Species 1. 



B. Species Telephoriform in ^, Lampyriform 



{Photimis or Photuris) in $ ; antennae in (^ 

 subfiliform, gradually tapering towards tip, 

 in $ shorter and with intermediate joints 

 widened and subserrate Species 2. 



C. Species Lampyriform {Photimis) in both sexes ; 



antennae, c? ?, short, and with intermediate 



joints broadly widened and subserrate* . [^Species 3.] 



D. Species Telephoriform in both sexes [=Chau- 



LIOGNATHUS, S. str.]. 



a. Elytra long, ample, subparallel or slightly 

 rounded at sides, usually covering the 

 abdomen, 

 a^. Antennae very elongate, tapering towards 

 tip, the intermediate joints much 

 widened : species very large .... Species 4. 

 b^. Antennae very elongate, slender, sub- 

 filiform, joints 9-11 widened in <^; 

 head and prothorax shining, the latter 

 large ; aedeagus of (^ with one of the 

 lateral lobes wanting : species largef • Species 5. 

 c^. Antennae filiform or subfiliform in both 

 sexes, sometimes narrowed towards 

 the tip Species 6-18. 



* One or two other Brazilian forms belong to this section. 

 t C. luctuosus (Latr.) and some other S.- American forms belong 

 to this section. 



