314 MEMOIRS ON THE COLEOPTERA 



Callichroma Latr. 



The species of this genus are frequently large and of brilliant 

 coloration, though generally monochromatic above; the antennae 

 are deep black and very long in the male; the eyes are deeply 

 emarginate and finely faceted. 



Callichroma smaragdina n. sp. Rather large, only moderately convex, 

 very bright uniform green above, paler metallic green beneath, the ab- 

 domen rufo-ferruginous, the femora testaceous, slightly tipped with 

 black throughout, the tibiae and tarsi black; head, antenna? and prothorax 

 nearly as in plicata, except that the strong transverse rugae of the pronotum 

 are wanting and replaced by fine and separated, scarcely visible plications; 

 elytra similar, sometimes less tapering with the sides very feebly converg- 

 ing from base to the apical arcuation, the surface with the two fine raised 

 lines more evident, especially the external; under surface similar; male 

 with the fifth ventral deeply and broadly, angularly emarginate, the apex 

 of the angle blunt. Length (cf) 30.0-32.0 mm.; width 7.9-8.2 mm. 

 Texas. 



Allied to plicata Lee., but larger, brighter and purer green in 

 color, the elytra less tapering, the pronotal plicae scarcely evident 

 and differing especially in the angulate form of the notch at the 

 end of the male abdomen, this being evenly parabolic in plicata. 



*Callichroma compressipes n. sp. Male more convex, the elytra 

 strongly tapering from base to apex, rather dull in lustre and dark blue- 

 green throughout above, polished and bright golden-green throughout be- 

 neath; two anterior femora red, black toward base and at tip, the posterior 

 red, black in apical two-fifths, the tibiae and tarsi black; prothorax as in 

 the preceding; elytra two and two-thirds times as long as wide, very much 

 narrowed from base to apex, cuneiform, densely punctate as usual and 

 with small ruguliform undulations, also with feeble and indistinct, 

 approximate and slightly convex lines, the hairs very short and black, 

 abundant and conspicuous; hind femora obliquely flattened above, not 

 quite twice as long as the intermediate, the hind tibiae broad, strongly 

 compressed, straight internally, broadly and evenly arcuate externally, 

 broadly concave throughout on the under surface; notch of the fifth 

 ventral parabolic; prosternum concave, transversely plicate. Length 

 33.5 mm.; width 8.8 mm. Guatemala (Esquintla). 



The legs are colored nearly as in the preceding and plicata, except 

 that the anterior and middle, but not the posterior, femora are 

 blackish basally, as well as tipped with black and the very much 

 longer hind femora are black in distal two-fifths; the broad com- 

 pressed hind tibiae and shining green abdomen are of course very 

 different. 



*Callichroma regalis n. sp. Still larger but of similar form, the elytra 



