STUDIES IN THE AMERICAN BUPRESTID^ 79 



the sides almost evenly and broadly arcuate, gradually converging 

 anteriorly, parallel and straight basally, the surface rather more 

 deeply impressed at the sides behind the middle, the median sulci 

 extremely shallow and obsolescent; elytra similar but notably more 

 elongate, the gradually converging and evenly arcuate sides poste- 

 riorly even more evidently serrulate; basal sulcus of the abdomen 

 extending beyond the middle of the second segment. Length (c?) 

 27.0 mm. ; width 8.5 mm. Florida obliterata n. subsp. 



Depressions of the elytra more coarsely and subrugosely punctate, the head 

 less developed; body nearly as in virginiensis but with relatively 

 smaller head and prothorax and rather more coppery lustre; head al- 

 most similarly sculptured, the excavation rather narrower, the eyes a 

 little less prominent; prothorax nearly similar in outline and sculpture 

 but somewhat more transverse, the sides broadly rounded and con- 

 verging anteriorly ( c?) or more subangulate anteriorly ( 9 ) , parallel 

 and nearly straight basally; elytra much more evidently wider than the 

 prothorax, otherwise nearly similar; under surface more coppery in 

 lustre. Length (d^) 21.0-22.0 mm.; width 7.2-7.7 mm. Wisconsin 

 (Bayfield) , — H. F. Wickham lacustris Lee. 



A — Nearly as in lacustris but with the head ( J') relatively still smaller 

 and with a much narrower and feebler frontal excavation along the 

 middle; prothorax still more transverse, swollen and rounded at the 

 sides anteriorly, the sides parallel but broadly sinuate basally, the 

 basal angles more acute; surface almost similarly sculptured; elytra 

 less decidedly wider than the prothorax but otherwise nearly similar, 

 the coppery depressions still more coarsely punctato-rugose and very 

 much more strikingly so than in virginiensis; under surface nearly 

 similar, cupreo-aeneous. Length (cJ') 22.0 mm.; width 7.8 mm. 

 Massachusetts brevicollis n. subsp. 



4 — First ventral scarcely more than flattened medially. Body very elongate, 

 moderately convex, shining, black, the elytral depressions faintly 

 bronzed, beneath feebly cupreous in lustre; head moderate, coarsely, 

 irregularly and not closely punctate, the excavation broad anteriorly, 

 narrow and deep along the median line posteriorly; eyes large but 

 unusually feebly convex; prothorax two-thirds wider than long, the 

 sides broadly rounded and gradually convergent anteriorly, parallel and 

 somewhat sinuate basally, the basal angles unusually prominent; 

 surface with the usual sculpture, the median impression very shallow, 

 with the dividing ridge unusually narrow; elytra evidently wider than 

 the prothorax, nearly twice as long as wide, the sides posteriorly unu- 

 sually gradually convergent, becoming nearly straight before the broadly 

 rounded apical angles, the sutural angle sharp and a little less than 

 right, not at all produced; surface sculptured nearly as in virginiensis; 

 under surface nearly as in that species but with the pubescence every- 

 where very short and inconspicuous, the coarse punctures not so large. 

 Length (9) 27.0 mm.; width 8.3 mm. Honduras. 



*hondurasica n. sp. 



First ventral distinctly sulcate along the middle as usual; sides of the pro- 

 Proc. Wash. Acad. Sci., April, 1909. 



