TYPOPHOEUS. 179 



specimens. It is therefore altogether impossible to fix the limits of these forms, as 

 constant structural characters are absent. I may further add that the male is almost 

 devoid of an elytral depression and entirely destitute of the oblique humeral costa. 



2. Typophorus viridicyanea. (T. sturmi, Tab. VII. fig. 21.) 



Paria viridicyanea, Crotch, Proc. Acad. Phil. 1873., p. 40 \ 

 Typophorus sturmi, Lefev. Ann. Soc. Ent. France, 1877, p. 317 2 . 



Eab. Noeth Ameeica 1 . — Mexico \ Orizaba 2 ; Nicaragua, Chontales ( Jansori) ; Costa 

 Rica, Volcan de Irazu (Bogers). 



Specimens from Nicaragua, named by Crotch himself, which I have for comparison, 

 prove the insect to belong to the present genus, with which I must identify M. Lefevre's 

 species, according to this author's description ; the latter, as well as Crotch, gives Mexico 

 as its locality. It is impossible to say whether the metallic blue colour and the finely 

 punctured thorax of this species are attributable to specific difference or to local variation 

 only, so many equally variable forms being before me from other localities. 



3. Typophorus chalceus. 



Typophorus chalceus, Lefev. Ann. Soc. Ent. France, 1877, p. 317 i . 



Eab. Mexico l , Jalapa, Cordova, Vera Cruz, Orizaba, Guanajuato, Tuxtla, Cosamalo- 

 apam, Oaxaca, Teapa, Tehuantepec, Cuernavaca (SallS, Edge). 



M. Lefevre described the type of the present species from bronze-coloured specimens, 

 in which the thorax is finely punctured, and the elytra distinctly punctate-striate to 

 the apex. I have now, from the same localities, specimens of blue or greenish colour 

 before me, which by their sculpturing I must refer to this species, while others again 

 vary in their punctuation, shape, and size, so that it becomes almost impossible to fix 

 their limit, constant characters seeming to be absent. Normal specimens are of a 

 coppery colour, with a rather transversely shaped and finely punctured thorax, the elytra 

 being very distinctly punctate-striate to the apex, and the antennae having their first 

 five or six joints fulvous. 



4. Typophorus paradoxus. 



Greenish ameous below, above subcupreous ; first six joints of the antennae fulvous ; head and thorax finely 



punctured ; elytra very strongly punctate-striate, the punctures distinct to the apex. 

 Length 2-3 lines. 



Eab. Bkitish Honduras, river Sarstoon, river Hondo {Blancaneaux). 



I am obliged to separate this species, on account of the closely and finely but distinctly 

 punctured thorax and the deeply punctate-striate elytra, the punctuation of which is 

 even visible to the naked eye. The male is very convex, and without an elytral 

 depression, while the female is deeply depressed below the base, as usual, and has a 



2a 2 



