PAL^EOTHONA. S79 



slight depression below the base, the latter not raised, the punctured strise more distinct anteriorly and 

 not very closely approached; underside and legs fulvous, the intermediate and posterior tibiae sometimes, 

 as well as the apices of the posterior femora, black or piceous. 



Hab. Panama, David in Chiriqui {Champion). 



The fulvous colour of the underside and scutellum, as well as the punctate-striate 

 elytra, separate P. semifulva from its allies. 



6. PaJaBothona subrugosa. 



Fulvous ; antennas black, three basal joints fulvous ; elytra metallic blue, closely and distinctly punctured, the 

 interstices somewhat rugose. 



Length 2 lines. 



Head impunctate ; frontal tubercles distinctly raised, broad and obliquely transverse ; carina distinct ; apices 

 of the mandibles furnished with some stiff bristles ; antennae with the third joint more than twice as 

 long as the second, but shorter than the fourth ; thorax transverse, of equal width, the surface with a 

 few fine punctures at the sides and a short longitudinal impression at the middle of the base ; scutellum 

 piceous ; elytra with a basilar depression, closely and distinctly punctured, the interstices slightly rugose - r 

 underside and legs fulvous. 



Eab. Panama, Volcan de Chiriqui {Champion). 



Larger than the preceding species, the frontal tubercles distinct and broader, the 

 elytra more closely and subrugosely punctured. 



7. PalaBOthona violacea. 



Below black ; above violaceous blue ; head and thorax blackish, impunctate ; elytra scarcely or more distinctly 

 punctured, the base slightly raised. 



Length 1 line. 



Head with the frontal tubercles distinct ; the extreme base of the antennas fulvous, the second joint obscure 

 fulvous, the rest black ; thorax, transverse, impunctate, the base with a distinct depression in front of the 

 scutellum ; elytra dark blue, the base distinctly raised and bounded behind by a transverse depression, 

 extremely finely punctured (only visible under a strong lens in one specimen) ; underside and legs black. 



Sab. Guatemala, Senahu in Vera Paz, Cerro Zunil {Champion). 



Although the two specimens from the above localities differ in the punctuation of 

 the elytra, which in the specimen from Cerro Zunil is very distinct, I have no doubt 

 about their specific identity, as I cannot find any other characters of distinction. In 

 the specimen from Senahu the elytra are very finely punctured and the thorax is not so 

 black as in the other specimen ; other differences I cannot discover. 



8. Palaeothona frontalis. 



Below black ; lower part of the head, thorax, and the base of the femora fulvous ; elytra greenish seneous, 

 closely and irregularly punctured. 



Length 2 lines. 



Head impunctate, the vertex blackish-aeneous, the lower part of the face fulvous ; frontal tubercles and carina 

 strongly raised ; eyes very large and convex ; antennae black, the two or three lower joints fulvous ; thorax 

 about twice as broad as long, the sides rounded before the middle and with a narrow flattened margin, surface 

 entirely impunctate, impressed with a shallow fovea in front of the scutellum ; elytra slightly widened 



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