FAMILY CARABID^. 61 



Genus CARABUS. \ 



Labrum bilobate ; mandibles furnished with a tooth in the middle ; mentum-tooth entire ; 



thorax subcordate, emarginate behind ; palpi with the last joint securiform ; antennae ' 



linear, second joint shortest, third cylindric ; wings rudimentary or none. Anterior 



tarsi of males dilated. * i 



Carabus vinctds ( Weber) ; C. interrujitus {Bay). ( Plate xxi, fig. 11.) 



Head and thorax smooth, blue-black. Elytra black, faintly bronzed, and marked with. '  



punctured lines : the three interrupted lines are sharply elevated, and the metallic i 



 points are reflected from these interruptions. Length eight- to nine-tenths of an inch. 



Carabus serratus (Say). (Plate xxi, fig. 12.) 



Color black, with blue and purplish hues which are reflected from the margins of the \ 



elytra and thorax : head and thorax plain and glossy black ; margins of the thorax ' 

 elevated and punctured. Elytra thickly punctured in about twelve rows : if taken in 



threes, there are three rows of ovoidal parallel impressions without punctures. Length ; 



seven- to eight-tenths of an inch. j 



Carabus limbatus (Say). (Plate xxi, fig. 16.) 



Color black : head and thorax smooth and glossy black. Elytra purplish black, bordered .: 



with blue and purplish hues, and marked by seventeen or eighteen punctured lines : 

 three of these lines are broken by stellate or cruciform markings. Length nine-tenths ' 



of an inch. ; 



j 



Genus C.ILOSOMA (Web.). Carabus (Lin.). \ 



Labrum bilobed ; thorax transverse, shorter than wide ; abdomen subquadrate, wider ' 



behind than before ; wings large ; palpi with the last joint ovate, truncate ; labium 

 short broad, the upper margin setose acuminated ; mentum sublinear, rounded late- ; 



rally, unidentate in the middle. Antennae, second joint shortest ; third longest, com- 

 pressed. 



Calosoma scrutato'R. ( Plate X, fig. 8.) 



Head blue-black : thorax blue-black, surrounded with golden green. Elytra green with \ 



ptirplish reflexion and bordered with cupreous, marked with punctured lines : the \ 



ridges between are transversely marked with nimierous lines ; each elytrum is also 1 



ornamented with three rows of distant green dots, which are not very conspicuous. 'i 



The whole body beneath is green, with steel-blue reflections : legs steel-blue, and the ; 



thighs are punctured with four or five rows of dots ; tarsi and tibiae dusky. Length ^ 



exceeds an inch : about \\ inches. J 



