GALERUCIISrE BEETLES — BLAKE 99 



swollen and resemble that of Cerotoma dilatipes Jacoby, while the 

 beetle itself bears a striking resemblance to Phyllecthrus dorsalis 

 (Olivier). Although J. A. Wilcox has written me that Plafymorpha 

 variegata has excised middle tibiae in the male, I have been unable to 

 detect it in the mounted specimens in the Bowditch collection. P. 

 smaragdipennis, on the other hand, has no such dilation in the front 

 legs, the middle tibiae are clearly excised, and the shape of the beetle 

 is different. In one point both agree: in the short, truncate 3d anten- 

 nal joint. 



I am including in this genus, purely because of the similarity of its 

 excised middle tibiae and the short third antenna! joint with its 

 truncate apex, a third species from Peru. It is not closely related to 

 either P. variegata or P. smaragdipennis and someday will doubtless 

 be referred elsewhere. 



Platymorpha smaragdipennis Jacoby 



Figure 5,c b 



Plalymorpha smaragdipennis Jacoby, Proc. Zool. Soc. London, p. 786, 1879. 



About 6 mm. in length, elongate oblong, shining, the elytra densely 

 and coarsely punctate; head, prothorax, femora, and undersurface 

 yellow, elytra shining metallic green, tibiae and tarsi deep brown. 



Head with a few minute punctures, carina and encarpae ill-defined. 

 Antennae long, black, the 2d and 3d joints very small, truncate at 

 apex; remainder long, densely covered with short hairs. Prothorax 

 subquadrate, wider at middle, contracted near the base; impunctate, 

 very shiny, yellow, disk in basal half vdih. transverse depression. 

 Scutellum pale. Elytra bright metallic green, closely and coarsely 

 rugose punctate. Body beneath and femora pale, tibiae and tarsi dark ; 

 middle tibiae of male deeply excised ; tibiae with spine, claws appendi- 

 culate. 



Type: Male in Bowditch collection from Capetillo, Guatemala, 

 and two paratjrpes (one male, one female). 



Platymorpha albiventris, new species 



Figure 4,d 



About 4 mm. in length, oval, parts of the prothorax and the entire 

 elytra densely punctate, shining black with pale abdomen and the 

 8th and 9th antennal joints (possibly also the terminal ones which are 

 missing in the single male specimen examined) pale, prothorax with 

 a transverse scooped-out depression; middle tibiae of male excised. 



Head with interocular space half width of head, occiput polished, 

 frontal tubercles distinctly marked, a small carina between antennal 

 sockets, lower front somewhat bulging. Antennae in male with 3d 

 joint very short, about half length of 2d, remainder long and slender; 



