DOEYPHOKA. 245 



6. Doryphora insignicornis. (Tab. XIV. fig. 17.) 



Doryphora insignicornis, Stal, Diagn. 1858, p. 254; Monogr. Chrys. Amer. p. 30 \ 

 Hab. Mexico 1 , Playa Vicente {Salle, Edge). 



Entirely of a very dark brownish cupreous, with the exception of the antennae, which 

 are light fulvous, the apical joint being black only. 



7. Doryphora pallidicornis. 



Obscure dark brown, subopaque ; antennae entirely flavous ; thorax remotely and finely punctured ; elytra 



minutely and closely punctate-striate. 

 Length 7 lines. 

 Head* with very few and fine punctures; antennas of the same length and shape as the preceding species, 



entirely flavous; thorax very finely and moderately closely punctured; elytra very finely and rather 



closely punctate-striate, the punctures almost disappearing near the apex, of a uniformly opaque dark 



brownish black. 



Hab. Guatemala, Senahu (Champion). 



Closely allied to D. insignicornis in coloration, but quite distinct on account of the 

 very fine punctuation of the thorax and elytra and the uniform flavous antennae. The 

 two specimens obtained show an almost abnormal development of the left jaw, which 

 is black and shining, much thickened and produced in front of the parts of the mouth. 

 The punctuation of the allied species is well visible with the naked eye ; in the present 

 one this is not the case. 



8. Doryphora semiambita. (Tab. XV. fig. 7.) 



Doryphora semiambita, Stal, Diagn. 1858, p. 255 ; Monogr. Chrys. Amer. p. 30 \ 



Hab. Mexico 1 , San Andres (Salle)-, Guatemala 1 , Las Mercedes, Cerro Zunil, El 

 Tumbadpr (Champion). 



StaTs type from Guatemala in Mr. Baly's collection agrees in nearly all respects with 

 the numerous specimens obtained by Mr. Champion ; the elytra in the typical form, 

 however, are more geminate-punctate than in the other specimens, which are strongly 

 punctate-striate ; and the thorax is scarcely so rounded at the sides. In all the 

 specimens the punctuation of the elytra is very strong, and well visible with the 

 naked eye. 



9. Doryphora subfastuosa. 



Below black; basal joints of the antennae testaceous below; thorax brownish piceous, subopaque, finely punc- 

 tured ; elytra blackish brown, finely geminately punctate-striate, the basal and sublateral margin, the latter 

 part of the suture, and a transverse short band at the middle of each elytron flavous. 



Length 5 lines. 



Hab. British Honduras, Belize, river Sarstoon (Blancaneaux) ; Guatemala, San 

 Juan in Vera Paz, Cubilguitz, Senahu, Coban, Panima (Champion), YzabeX (SalU). 



This species so completely resembles D. semiambita at first sight, that it will only 



