82 GEO. H. HORN, M. D. 



convex in both sexes, coarsely, densely punctured, with small, irregular callosi- 

 ties; clypeus (46) with a short, median, truncate lobe, on each side of which is a 

 slight sinuation ; thorax more than twice as wide as long, the sides nearly par- 

 allel at middle, narrowed at apex and base ; disc irregular, a distinct median chan- 

 nel, wider in 9 , and some irregular depressions near the side, a subcariniforni 

 callus at base opposite the middle of each elytron ; surface coarsely punctate, not 

 densely at middle, very densely and confluent at the sides ; elytra wider than the 

 thorax, often wider slightly behind the middle, gradually narrowed at apical third, 

 the margin serrulate, the apices obtusely rounded ; the first costa moderately ele- 

 vated from the apex to the middle, the other costa very indistinctly defined and 

 irregular, the basal and humeral depressions not deep, surface very densely i)unc- 

 tured between the slight elevations, more sparsely near the base ; body beneath 

 sparsely punctate, very shining; prosternum distinctly lobed in front; last ven- 

 tral segment with serrulate margin ; anterior femur with rather strong tooth, 

 serrulate on its distal edge. Length .34 - .48 inch ; 8.5 - 12 mm. (Fig. 45.) 



Male. — Prosternum coarsely, sparsely punctate at the sides, scarcely hairy ; an- 

 terior tibia (50) slightly arcuate, with a very acute and prominent tooth one-third 

 from the tip ; middle tibia slightly arcuate, the inner side slightly sinuous and 

 subangulate one-third from the apex ; posterior tibia straight ; last ventral seg- 

 ment (47) with a very feeble emargination at apex ; last dor.sal coarsely punctate, 

 the apical margin subtruncate. 



Female. — Prosternum as in the male ; anterior tibia feebly arcuate, inner mar- 

 gin simple ; middle and posterior tibise straight ; last ventral segment (48) longer 

 than in the male, subtruncate at apex ; last dorsal very coarsely punctate, apex 

 entire. 



While there is very little noteworthy in the general ai)j)earance of 

 this species, it is unique in the form of the clypeus being the only 

 one in our fauna without emargination. The form of the middle 

 tibia of the male is also unique. 



Occurs from the Middle Btates to Florida. 



11. C ignieollis Horn. — Form nearly that of the smaller femorata, but 

 rather broader, color dark bronze, the head and thorax bright cupreous ; antennse 

 rather short, seneous %, piceous 9> serrate from the fourth joint but scarcely 

 narrower externally, third joint as long as the next two ; front slightly convex, 

 more densely punctured in the male ; clypeus (52) with a rather shallow, broad 

 emargination at middle ; thorax twice as wide as long, sides at middle parallel 

 and slightly sinuate, narrowed at apex and base ; disc feebly convex, a vague 

 median depression with others irregular near the sides and apex ; surface moder- 

 ately coarsely punctured, the punctures sparse and rather irregular at middle, 

 dense and confluent at the sides ; elytra a little wider than the thorax, parallel, 

 narrowed at apical third, the margin serrulate, the apices obtuse ; disc feebly con- 

 vex, the first costa extending from apex to middle, the discal fovese shallow, 

 transverse, densely punctured, the basal fovea deep, the surface between the discal 

 fovese and posterior to the last very sparsely punctured, the surface otherwise 

 coarsely and densely punctured ; body beneath bright aeneous or subcupreous, 

 coarsely, sparsely punctured, rather more densely at the sides of the ventral seg- 

 ments ; last ventral segment with serrulate margin ; anterior femur with rather 

 small, obtuse tooth, serrate along its distal margin. Length .24 - .32 inch ; 6-8 

 mm. (Fig. 51.) 



