130 PHTTOPHAGA, 



4. Metaxyonycha godmani. (Tab. VI. fig. 13.) 



Elongate, parallel, testaceous; antennae with joints five, six, seven, and the two terminal ones black; 

 thorax three-dentate ; elytra deeply semipunctate-striate, the interstices rugose, a humeral and a subapieal 

 large spot metallic green. 



Length 4| lines. 



Head with a rather deep depression between the eyes, distinctly but not very closely punctured at the vertex ; 

 antennas more than two thirds the length of the body, shorter in the female j thorax nearly square-shaped, 

 the anterior and posterior angles produced into an acute tooth, the lateral margin three-dentate, the 

 posterior tooth, however, obsolete, surface very closely and rather evenly punctured, the punctures not 

 stronger than those of the head ; elytra with two or three regular rows of deep punctures near the suture, 

 rest of the surface irregularly punctate, the interstices everywhere transversely wrinkled and distinctly 

 costate near the extreme apex, a large metallic-green spot, obliquely cut at its posterior margin, is placed 

 at the base, another of the same colour below the middle, neither of these spots touches the lateral and 

 sutural margins ; legs testaceous, the femora in the male extending to nearly the apex of the abdomen, 

 those of the female shorter. 



Hab. Guatemala, Zapote {Champion). 



At first sight this species resembles M. chlorospilota ; but an examination of the 

 antennae and the shape of the thorax will at once show its specific distinction. Five 

 specimens, which show no variation, were obtained by Mr. Champion. Besides the 

 colour of the antennae, the totally different sculpture of the elytra will separate the 

 present species. 



PRIONODERA. 



Prionodera, Chap. Gen. Col. x. 1874, p. 248. 



The few species constituting this genus seem to form a connecting link between the 

 genera Metaxyonycha and Colaspis, approaching the first by their general shape and that 

 of their thorax, and the latter genus by their simple, not emarginate tibiae, but differing 

 from it, according to Chapuis, by the thickened middle joints of the antennae. This 

 latter character, however, I have searched for in vain, and find that the joints very 

 gradually and slightly thicken towards the end, and are by no means thicker in the 

 middle than at the base or apex. Two South- and two Central- American species are 

 known. 



1. Prionodera amasia. (Metaxyonycha amasia, Tab. VI. fig. 14.) 

 Metaxyonycha amasia, Marshall, Ann. & Mag. Nat. Hist. ser. 3, xiii. p. 388 \ 

 Prionodera wagneri, Harold, Col. Hefte xii. 1874, p. 66 2 . 



Hob. Mexico, Teapa (Salle) ; Guatemala, San Juan, Sinanja, Panzos (Champion) ; 

 Nicaragua, Chontales (Pelt) ; Costa Rica 1 2 (Salle), Vol can de Irazu (Bogers). 



There seems to be no doubt, according to the descriptions, that Marshall's and v. 

 Harold's species are identical. The former included it in the genus Metaxyonycha, from 

 which it differs, however, in the simple intermediate tibiae. The species is easily recog- 

 nized by the metallic green elytra and their irregular punctuation, besides the inter- 



