300 PHYTOPHAGA. 



above in the fine punctuation of the elytra ; but as I am unable to find any other 

 differences, I prefer to consider it as a variety rather than another species. 



13. Haltica limitata. 



Oblong, dark violaceous; antennae black; tborax transverse, impunctate, basilar groove abbreviated at each 

 side ; elytra very finely and closely punctured. 



H?addiftin n ctly punctured round tbe inner margin of the eyes; frontal tubercles very flat but broad, limited 

 behind by a very narrow transverse ridge ; carina acutely raised; labrum and palpi black; antennae half 

 the length of the body, rather robust, the third joint one half longer than the second ; thorax about twice 

 as broad as long, the lateral margins scarcely rounded; basilar groove straight, abbreviated at each side 

 and not continued upwards; surface in front and behind the sulcation impunctate; elytra convex, sub- 

 parallel, of a fine metallic reddish violaceous, exceedingly minutely punctured, the extreme apex impunc- 

 tate ; femora and underside more obscure violaceous. 



Hab. Guatemala (coll. SallS). 



Only a single, apparently female, specimen is contained in the Salle collection; from 

 all other species the interrupted basilar groove of the thorax and the fine violaceous 

 colour well separate the present insect. 



14. Haltica complicata. (Tab. XVII. fig. 10.) 



Haltica complicata, Harold, Coleopt. Hefte, xv. 1876, p. 119 \ 

 Hab. Mexico \ Cordova, Toxpam (SallS). 



Von Harold has given but a diagnosis of this species, with which the specimens from 

 M. Salle's collection and named H. complicata agree. The species is of a rather opaque 

 greenish blue, and principally distinguished by the two longitudinal costae which unite 

 near the apex of the elytra, the space between them being much depressed, and having 

 in some specimens a third more or less distinct rib ; the same depression is also visible 

 between the first costa and the suture. Both males and females have the same elytral 

 structure. 



15. Haltica sallei. 



Haltica sallei, Harold, Coleopt. Hefte, xv. 1876, p. 119 \ 

 Hab. Mexico 1 . 



It is impossible to recognize with certainty a species of this difiicult genus of which 

 a short diagnosis only is given. Von Harold says that the insect much resembles a 

 species of Diphaulaca ; but the author does not mention the shape of the thoracic 

 groove, whether it is limited at the sides, as is the case in Diphaulaca. Possibly the 

 species is identical with Diphaulaca nitida, Jac, which, in my opinion, is a true 

 Diphaulaca. 



