226 PROC. ENT. SOC. WASH., VOL. 22, NO. 8, NOV., 1920 



punctures bearing inconspicuous short, stiff, decumbent, black hairs. Under 

 surface more shining than above, rather densely punctate ; vestiture conspicu- 

 ous, grayish. Pygidium normally covered by elytra. Front tibiae (Fig. 

 2, C) moderately broad, widening apically, inner apical angle rather strongly 

 produced, outer apical angle strongly deflexed, rounded and usually quad- 

 ridentate. Length 3.8 to 4.8, width 2.4 to 3.0 mm. 



Described from about 70 specimens (type and paratypes, Cat. 

 No. 22327, U. S. N. M.) found boring in Bourreria havanensis 

 Miers at Marathon, Key Vacas, Florida, March 7, 1919. 



Differs from the five described species of this genus by the 

 peculiar sculpture and vestiture of the front, by the inconspicu- 

 ous vestiture of the elytra and by the absence of raised median 

 thoracic and frontal lines. No secondary sexual differences can 

 be indicated, although two males and two females have been 

 dissected. 



Actual date of publication, December j/, 1920. 



