86 (4E(). H. HORN, M. D. 



13. —Anterior tibia % dilated near tlie tip, without obvious sinuation. 



Tooth of anterior femur serrulate ; ventral segments with distinct lateral 

 smooth spaces ; last ventral 9 with small, semi-circular emargination. 



27. niali. 



Tooth of anterior femur not or extremely indistinctly serrulate ; ventral 



segments w'ithout lateral smooth spaces; last ventral 9 with a barely 



perceptible emargination 28. piisilla. 



Anterior tibia % abruptly dilated at apex, deeply sinuate above the dilata- 

 tion ; femoral tooth serrulate ; ventral segments without lateral smooth 

 spaces; last ventral 9 emarginate at tip, with a transverse ridge in 

 front of emargination 29. iii.va. 



This group has representation in every part of our fauna and two 

 of the species, dentipes and trinervia, have very wide distribution, the 

 other species are more restricted in their habitats. 



14. V. Harrisii Hentz. — Form rather broad, subdepressed ; color blue, or 

 greenish liluo, shining, beneath similar in color, but usually darker ; antenna; 

 piceous, slightly more slender to tip, third joint not as long as the next two, 

 sometimes hardly longer than the fourth ; front slightly convex, a little more 

 punctate in the male and somewhat more green ; clypeus (67) with a broad, shal- 

 low emargination at middle, arcuate each side ; thorax a little more than twice 

 as wide as long, obliquely narrowed at apex and base, slightly sinuate at middle, 

 disc moderately convex, a vague depression of the median line ; surface some- 

 what irregular, coarsely and closely punctured, transversely strigose near the 

 sides ; elytra wider than the thorax, slightly wider behind the middle, disc feebly 

 convex, the first and fourth costfe slightly elevated near the apex, basal depres- 

 sion deep, the humeral slight, a large shallow fovea one-third from base on the 

 line of the second costa, frequently another le.ss distinct one-third from apex, 

 surface rather coarsely and roughly punctured ; body beneath moderately 

 coarsely, but not densely punctured, the ventral segments without lateral cal- 

 losities, the posterior angles not prominent, the last ventral with serrulate mar- 

 gin ; anterior femur with a moderate and rather obtuse tooth, feebly serrate ; 

 prosternum not lobed in front. Length .24- .32 inch ; 6 -8 mm. (Fig. 66.) 



Male. — Prosternum tlat, densely punctured ; anterior tibiae (70) arcuate, slightly 

 dilated at apex, sinuate above the dilatation ; middle tibia arcuate, very obliquely 

 grooved, posterior tibia straight; last ventral segment (68) semi-circularly emar- 

 ginate ; last dorsal coarsely punctate, triangularly notched at apex. 



Female. — Prosternum very coarsely punctate; anterior tibia slightly arcuate, 

 the middle less so, the posterior straight ; last dorsal (69) longer than in the male, 

 a very slight notch at tip; last dorsal coarsely punctured, the apex entire. 



This species has heretofore been placed among those in which the 

 htst ventral segment has an entire border, but in all the specimens 

 examined it is distinctly serrulate, its place is therefore in the ])resent 

 series. The only species at all closely resembling it is viridicyanea, 

 which has other sexual characters. 



New England States and Canada, extending as far south as North 

 Carolina. 



