March, igio.] Frost : A New Species OF Chrysobothris. 43 



A NEW SPECIES OF CHRYSOBOTHRIS (COLE- 

 OPTERA) FROM MAINE. 



By C. a. Frost, 



South Framingham, Mass. 



Chrysobothris verdigripennis, new species. 



Form broader and less depressed than dentipes, broadest behind the middle, 

 subdepressed ; color of punctured spaces of elytra and thorax varying from a 

 verdigris green to brassy or cupreous, costae and callosities black or very 

 dark bronze, beneath brassy green to coppery ; antennae green, sometimes 

 becoming bronzed toward the tip, joints four to eleven with the lobes reddish 

 testaceous, the testaceous area increasing gradually from the fourth to its 

 maximum on the apical, third joint as long as the next two; front flat, greenish, 

 densely punctured with two small callosities, white pubescence above ((^) ; 

 or slightly convex, greenish bronze, more coarsely punctured and with two 

 large callosities and many small ones ($) ; clypeus broadly and deeply tri- 

 angularly emarginate, sides nearly truncate ; thorax twice as wide as long, 

 generally wider at the base than the apex, arcuately narrowed at the apex, 

 obliquely and slightly at the base, sides at the middle parallel, slightly sinuate, 

 a rather wide median dorsal sulcus generally closed at the base by the joining 

 of the broad slightly elevated lateral callosities, irregular and variable cal- 

 losities and plicae at the sides, disk moderately convex ; elytra wider than the 

 thorax, widest behind the middle, from apical third narrowed arcuately to the 

 obtuse apices, sides slightly sinuate at middle, margin serrulate, disk moder- 

 ately convex, sutural costa entire from near the middle, gradually more elevated 

 to apex, second and third costas indicated by short ridges and callosities joining 

 each other and the first costa, fourth costa distinct to near the humerus but in- 

 terrupted, depressed places coarsely and very irregularly punctured, with many 

 smooth places, basal foveae feeble ; abdomen beneath sparsely pitted with 

 coarse elongate punctures which are laterally confluent and form crenulate 

 ridges at the sides of the abdomen, sparsely hairy, lateral callosities distinct; 

 metasternum more closely and finely punctate anteriorly ; front margin of the 

 prosternum slightly sinuate, sides with coarse punctures and interlacing smooth 

 spaces ; anterior femur with a strong, rather obtuse tooth at tip, distal margin 

 indistinctly crenulate; last ventral with serrulate margin. Length 13 to 

 14 mm. ; width at apical third 5.5 to 6 mm. 



Male. — Prosternum pubescent, densely, coarsely punctured with a tendency 

 to form rugae near anterior margin, usually a small smooth space at middle ; 

 anterior tibia arcuate, gradually thickened to tip ; near the apex there is an 

 acute tooth set obliquely across the inner face of the tibia from the inner 

 posterior edge, the distal edge of this tooth is continued from the base and 

 forms the inner edge of the apical tooth which is slightly back from the front 



