DIABEOTICA. 509 



closely punctured, slightly rugose, the anterior portion to the middle, and a broad transverse band beyond, 

 black (the black anterior portion divided from the transverse band by a narrow straight yellowish-white 

 band), a round white spot close to (but not quite reaching) the apex of each, the apex itself black ; 

 underside and femora fulvous. 



Hab. Panama, Volcan de Chiriqui [Champion). 



The elytra in this species might be equally well described as black, with a narrow 

 central whitish band and similarly coloured apices. Two specimens only were 

 obtained. 



17. Diabrotica regularis. 



Testaceous, the apical joints of the antennae and the femora pale greenish-testaceous, the head black ; thorax 

 obsoletely depressed ; elytra rather strongly punctured, testaceous, a broad transverse band at the base 

 and a narrow one below the middle, black. 



Length 2-2\ lines. 



Head impunctate, the vertex foveolate ; palpi fulvous ; antennae half the length of the body, fulvous, the 

 three terminal joints very pale yellowish-green, the second and third joints short, equal ; thorax one half 

 broader than long, impunctate, flavous, the disc with two obsolete depressions ; scutellum black ; elytra 

 slightly widened posteriorly, longitudinally grooved on each side, closely and very distinctly punctured, 

 with a transverse black band (not quite touching the lateral margins, and with its posterior edge very 

 uneven or dentate) extending from the base nearly to the middle, and another narrower black band 

 placed at a little distance below the middle ; the breast black, the abdomen and femora pale greenish, the 

 tibiae fulvous. 



Sab. Panama, Bugaba, Volcan de Chiriqui (Champion). 



D. regularis differs from B. Upartita in the colour of the antennas and legs, the more 

 irregular shape of the elytral bands, the fulvous apices of the elytra, and in the less 

 parallel and more widened general shape. 



18. Diabrotica rogersi. (Tab. XXVIII. figg. 24, 25.) 



Testaceous, the head, the intermediate joints of the antennae, the breast, and the tibiae and tarsi black; thorax 

 fulvous, bifoveolate; elytra fulvous, the apices lighter, a broad transverse band at the base and a narrow 

 curved transverse mark below the middle, dark metallic blue. 



Var. Elytra metallic blue, a spot below the middle and the apices fulvous. 



Length 4 lines. 



Head with a distinct fovea between the eyes ; antennae two thirds the length of the body, the third joint one 

 half longer than the second, the three lower joints fulvous, the following five black, the others pale 

 testaceous, the extreme apex of the terminal joint fuscous ; thorax dark fulvous, with two more or less 

 distinct foveas ; scutellum piceous ; elytra extremely finely and not very closely punctured. 



Hab. Costa Rica, Rio Sucio (Rogers). 



D. rogersi differs from both D. elegantula and D. gratiosa in its larger size, and in 

 the much more finely punctured elytra ; the markings of the latter also being different 



the broad dark blue anterior band extending nearly to the middle but without 



touching the lateral margins, the sides of this band not notched but forming a perfectly 

 straight line ; the space between the anterior and posterior blue marks of a darker 

 fulvous than the apices, the latter being pale testaceous ; and the second narrow trans- 



