470 Ml-. M. Jacoby on 



elytra very deeply and closely punctured, the punctures slightly 

 geniinately arranged near the base, the latter with two or three very 

 short costre, the rest of the interstices somewhat wrinkled and trans- 

 versely rugose, bright metallic green, the fulvous band placed at the 

 middle, nearly straight and extending to the sides, the latter narrowly 

 and the extreme apex likewise fulvous, the apex uf the tibiae, more 

 or less and the tarsi black. 



Rah. Bogota. 



This species resembles in its coloration M.fasciafa, Lef. 

 (pulchclla, Baly), and 31. preiiosa, Baly, and is most closely 

 allied to the last-named species, it differs in the metallic 

 green (not blue) colour of the elytra aud in the distinct 

 short costa3 at the base of the latter, the thorax is less 

 broad, its sides are very much less rounded and without 

 the three teeth, so conspicuous in 31. ijrctiosa. Baly's 

 type, with which I have compared it, likewise belongs to 

 the female sex. Eight specimens are before me. 



3Idaxyonycha rugosa, sp. n. 



Testaceous, antennse (the basal four joints excepted) black, tliorax 

 closely and not strongly punctured, the sides sinuate, elytra strongly 

 transversely rugose and irregularly punctured, an oblique, subquad- 

 rate spot on the shoulders and another below the middle, metallic 

 green. 



Fcm. Elytra more distinctly longitudinally costate. 



Length 8-9 niillim. 



Mas. Head closely and strongly punctured, triangularly depressed 

 between the eyes, clypeus subquadrate, more sparingly punctured, 

 concave-emarginate anteriorly, antennte black, the lower feur joints 

 testaceous ; tliorax one-half bi"oader than long, the sides rounded, 

 obsoletely biangulate at the middle, the surface irregularly, closely 

 but not very strongly punctured, with an obsolete depression at the 

 sides, scutellum elongate, elytra semi-regularly punctate-striate near 

 the suture, irregularly and strongly punctured at the sides, the inter- 

 stices obsoletely longitudinally costate and very strongly transversely 

 rugose, testaceous, the shoulders with an elongate subquadrate and 

 slightly oblique metallic green spot, extending to about the third 

 portion of tlie length uf the elytra, a similar-coloured spot of some- 

 what subtriangular shape placed immediately below the middle ; 

 intermediate tibia; strongly curved at the apex, the anterior tarsi 

 widened and elongate. 



Hab. Mexico, Cordova (F/ohr). 



