28 MESIC. PUBLICATION 4 7 0, U. S. DEPT. OF AGRICULTURE 



112. Pronotum distinctly silicate at middle; lateral margins of last visible 



abdominal sternite slightly interrupted- (85) libonoti Horn, p. 193. 

 Pronotum not sulcate at middle; lateral margins of last visible ab- 

 dominal sternite abruptly interrupted 



(86) costifrons Waterhouse, p. 195. 



113. Last visible abdominal sternite with an elevated, serrate, submarginal 



ridge, sometimes only slightly elevated 114 



Last visible abdominal sternite without an elevated, serrate, sub- 

 marginal ridge 126 



114. Large species, 12-22 mm 115 



Small species, 6-10.5 mm 123 



115. Scutellum long, acuminate posteriorly 116 



Scutellum short, triangular, and not acuminate posteriori}* 121 



116. Pronotum with a median depression 117 



Pronotum without a distinct median depression 118 



117. Eyes nearly contiguous on occiput; sides of pronotum parallel and 



strongly sinuate at middle. (87) tranquebarica (Gmelin), p. 198. 

 Eyes distinctly separated on occiput; sides of pronotum obtusely 

 rounded near apical angles and obliquely converging posteriorly 



(88) acuminata LeConte, p. 201. 



118. Elytra acutely produced at apices- (89) acutipennis Chevrolat, p. 203. 

 Elytra not acutely produced at apices 119 



119. Each elytron with three to six golden-green or reddish-cupreous discal 



foveae 120 



Each elytron with two indistinct discal foveae 



(90) merkelii Horn, p. 205. 



120. Body above purplish blue; second costa on each elytron interrupted 



by the anterior fovea (91) gemmata LeConte, p. 207. 



Body above brownish cupreous; second costa on each elytron con- 

 tinuing through the anterior fovea 



(92) wickhami, new species, p. 209. 



121. Elytra with distinct, broad, irregular, elevated, smooth spaces, the 



sculpture resembling that of the species of Chalcophora 



(93) chalcophoroides Horn, p. 210. 

 Elytra without distinct, broad, elevated, smooth spaces, the sculpture 



resembling that of costifrons 122 



122. Last visible abdominal sternite of female narrowly, deeply, arcuately 



emarginate at apex; median lobe of male genitalia dentate on 



lateral margins (94) bispinosa Schaeffer, p. 211. 



Last visible abdominal sternite of female broadly, shallowl}*, arcuately 

 emarginate at apex; median lobe of male genitalia not dentate 

 on lateral margins (95) serripes Schaeffer, p. 213. 



123. Elytra with distinct green or coppery-yellow discal foveae 124 



Elytra without discal foveae (96) analis LeConte, p. 215. 



124. Elytra with more or less distinct longitudinal costae; basal depression 



on each elytron without or with an indistinct colored spot 125 



Elytra without longitudinal costae; basal depression on each elytron 

 with a distinct green or coppery- vellow spot 



(97) chrysoela (Illiger), p. 217. 



125. Underside of body piceous, with distinct purplish, greenish, or bronzy 



reflections; sides of pronotum parallel posteriorly; each elytron 

 with one more or less distinct longitudinal costa; male genitalia 

 with the sides of lateral lobes arcuate near apices (fig. 125, A) 



(98) bimarginicollis Schaeffer, p. 219. 



Underside of body bright green at middle, purplish brown at sides; 



sides of pronotum converging posteriorly; each elytron with more 



than one longitudinal costa; male genitalia with the sides of 



lateral lobes parallel near apices (fig. 125, B) 



(99) fiskei, new species, p. 221. 



126. Elytra with distinct foveae 127 



Elytra without distinct foveae 134 



127. Elytra with more or less distinct longitudinal costae 128 



Elytra without a trace of longitudinal costae 131 



128. Body above dark bronzy brown 129 



Body above violaceous, cupreous, or bluish 



(100) azurea LeConte, p. 221. 



129. Last visible abdominal sternite slightly, longitudinallv carinate 



(101) sexsignata (Say), p. 224. 



Last visible abdominal sternite not longitudinally carinate 130 



