South American species of Diahrotica. 5 



a a. Elytra rufous or flavous, the outer limb green. 

 6. Elytra not grooved or plicate below the humeral callus. 

 Sp. 126, 127. 



b b. Elytra grooved or plicate below the humeral callus. 

 Spec. 128. 

 a a a. Elytra flavous or fulvous, the entire limb (the sutural one some- 

 times excepted) black or piceous. 

 b. Elytra not grooved or plicate below the humeral callus. 

 Spec. 129, 130. 



b b. Elytra grooved or plicate below the humeral callus. 

 Spec. 131—133. 

 aaaa. Elytra olivaceous, the outer margin, dilated at the apex, 

 greenish yellow. 

 Spec. 134. 

 aaaa a. Elytra prasinous, the entire limb white. 

 Spec. 135. 

 B. Elytra flavous, a short sutural line at the base black. 



Spec. 136. 

 S. Elytra pale flavous, a broad ill-defined medial fascia pale green. 



Spec. 137. 

 T. Elytra fulvous or flavous, immaculate. 



a. Elytra not grooved or plicate below the humeral callus. 



b. Elytra transversely impressed across the middle. 

 Spec. 138. 



b h. Transverse impression on elytra obsolete. 



Spec. 139—145. 



a a. Elytra grooved or plicate below the humeral callus. 



b. Elytra transversely impressed across the middle. 



Spec. 146. 



b b. Transverse impression on elytra obsolete. 



Spec. 147—153. 

 U. Elytra prasinous or olivaceous, immaculate. 



a. Thorax rufous. 



Spec. 154. 



a a. Thorax concolorous with the elytra. 



Spec. 155—158. 

 — 41, 64, and 73 vars. 

 V. Breast densely clothed on the sides with golden hairs ; elytra rugose, 

 rufous, the outer limb and apex sometimes narrowly edged 

 with black. 



Spec. 159, 160. 



Spec. 1. Diahrotica regalis, Baly. 



Annals & Mag. Nat. Hist., Oct. 1859, p. 270 ; Journ. 

 Lin. Soc, xix., p. 213 ; Jac, Biol. Cent. Amer., Cole- 

 optera, vol. vi., pt. 1, p. 502, tab. xxviii., fig. 18. 



Var. A. Elytris a basi ad longe pone medium fulvis. Long. 

 4—5 lin. 



Hah. Colombia ; Cayenne, type and var. A ; also 



