AMERICAN COLEOPTERA. 139 



the first three joints of the anterior tarsi are lamellate-papillose, the 

 middle tarsi with the first joint, sometimes the second also biseriately 

 lamellate, third joint spongy. 



Chaudoir further adds concerning the species of the latter genus, 

 " These species which seem to me should not remain in the genus 

 Callida for the reasons above given and because their facies-is quite 

 different, appear to make the transition to the genus Philophyga, of 

 which they have somewhat the form, being however more elongated.'" 



It needs only to be stated that G. decora is for Chaudoir a Callida 

 and C. punctata a Spongoloba to convince the majority of American 

 students that any great difference of facies does not exist. 



Our species are not numerous and may be separated in the following 

 manner : 



Upper side of tarsi flattened and more or less distinctly sulcate or impressed. 

 Body above uniformly colored. 



Color piceous or castaneous, feebly striate platynoides Horn. 



Piceous, elytra with slight cupreous tinge pluiiulata Lee. 



Bright blue or green \ iridipennis Say. 



Body above bicolored ; thorax red, elytra blue or green decora Fab. 



Upper side of tarsi convex, not sulcate or impressed. 



Body above bicolored ; thorax red, elytra blue or green punctata Lee. 



Body bright blue or green. 



Elytra distinctly longer than the head and thorax, their surface moderately 



striate with slightly convex intervals fulgida Dej. 



Elytra not longer than head and thorax, their surface very finely striate with 



flat intervals purpurea Say. 



In addition to the above C. rubricollis Dej., a Cuban species is said 

 by Chaudoir to occur in our fauna. We have never seen any native 

 specimens. 



C platynoides n. sp. — Form moderately elongate, piceo-testaceous or 

 castaneous, head and thorax somewhat paler than the elytra, shining without 

 trace of metallic surface lustre. Head very sparsely punctulate, front on each 

 side impressed, exteriorly to which the surface is longitudinally wrinkled. 

 Antennae brownish. Thorax as broad as long, widest in front of middle, sides 

 arcuate in front, feebly sinuate posteriorly the angles rectangular, lateral margin 

 rather wide and slightly reflexed, disc slightly convex, median line distinctly 

 impressed, surface feebly transversely wrinkled and with few punctures along 

 the apical margin, the sides and median line. Elytra oblong, subparallel, striae 

 finely impressed, indistinctly punctulate, intervals nearly flat finely sparsely 

 punctulate. Dorsal punctures on the third interval, the anterior slightly in front 

 of the middle, the posterior at apical third. Body beneath nearly smooth, a few 

 punctures at the sides of the metasternum. Length .42 — .50 inch ; 10.5 — 12.5 mm. 



Male. — Anterior tarsi moderately dilated the first three joints biseriately squamu- 

 lose beneath, the fourth joint nearly naked. Middle tarsi with first joint hairy, 

 second and third biseriately squamulose, fourth nearly naked. Anal segment 

 with one setigerous puncture each side. 



