346 THE CANADIAN ENTOMOLOGIST 



AFRICAN BUPRESTID^ (COL.) OF THE GENUS 



STERNOCERA. 



BY RICHARD T. GARNETT, BERKELEY, CAL. 



The following table will separate the various forms of Sterno- 

 cera interrupta Olivier: 



I. Impressions of elytra present. 



A. Foveae of thorax and elytra with white pilosity. 



B. Beneath dull bronze, above black; elytra black or dull 



castaneous, lighter punctured 6'. interrupta Olivier. 



BB. Entirely dull bronze; elytra 



rugose var. reticulata Kerremans. 



AA. Foveae of thorax and elytra golden. 



B. Entirely bronze; base of abdominal segments metallic 



purple var. klugi J. Thomson. 



BB. Below golden green; elytra 



castaneous var. mephisto J. Thomson. 



AAA. Fovea of elytra red var. vandykei, subsp. nov. 



II. Impressions of elytra absent var. immaculata Kerremans. 



S. interrupta Olivier. Thorax entirely covered with irregular 

 pits, smaller towards the middle and filled with white pubescence; 

 beneath sombre bronze, above black, elytra black or sombre 

 castaneous, more smoothly punctured. Elytra with 2 vittae at 

 base on each side filled with white pilosity, the inner one small and 

 short, the outer one long and broader and another on the elytral 

 fold beneath the humeral umbone; posterior half of elytra with 

 long vitta on each side filled with whitish pilosity, this vitta often 

 broken up. Beneath rugose, entirely covered with the same white 

 pubescence, except the median line where the pubescence is scanty 

 or lacking altogether. Length: 27-42 mm. Width: 10-15 mm. 

 Habitat: Damaraland ; Senegal ; Zambesi ; Dakar. 



Var. reticulata Kerremans. Entirely sombre bronze, metal- 

 lic, with the elytra very strongly reticulate. Length: 26-35 mm. 

 Width: 10-13.5 mm. Habitat: Senegal; Guinee. 



Var. klugi Thompson. Fovea of thorax and elytra golden; 

 entirely bronze; base of abdominal segments metallic purple. 

 Length: 34 mm. Width: 13 mm. Habitat: White Nile; Senegal. 



October, 1918 



