THE ANT-LIKE STONE BEETLES. 



301 



584 (1827). Connophbon capillosulum Lee, Proc. Phil. Acad. Nat. Sei., 

 VI, 1852, 152. 



Rather stout and inflated. Dark reddish-brown ; elytra paler and brighter 

 red, thickly clothed with long, erect, pale hairs; legs paler. Antennae dull 

 yellow, long and slender, the club rather abrupt. Thorax slightly wider 

 than long, sides feebly curved, disk with a distinct sub-basal impression, 

 interrupted at middle. Elytra nearly twice as wide as thorax, humeral fold 

 long and strong,* subhumeral impression large and conspicuous, inner fovea 

 distinct. Length 1.6 mm. 



Marion and Putnam counties ; scarce. March 17-April 22. 



C. politum Say has been taken in northern Illinois ; G. nigrum 

 Casey was described from Michigan and C. pumilum Casey from 

 New York, Canada and Iowa. 



In addition to those described, there are in the collection at hand 

 about eight species of Connophron which I have not been able to 

 identify with Casey's key. Since his collection of types is inac- 

 cessible for reference, they are for the present left unnamed. 



Tribe II. SCyDM^NINL 



As at present restricted this tribe is represented in the United 

 States by only two genera, one of which occurs in Indiana. 



IV. Scydm^nus Latr. 1802, (Gr., "sacU colored. ") 



The members of this genus are distinguished from those of the 

 preceding tribe by the smaller thorax, .which is more dilated in 

 front, narrowed toivard base, the sides sinuate behind the middle ; 

 more elliptical and convex elytra; wider neck; antennae enlarged 

 toward apex but never with distinct club ; scutellum usually dis- 

 tinct; legs long and well developed, the femora, especially the front 

 ones, distinctly elavate. But one species has been taken in the 

 State, though two others may occur. 



KEY TO INDIANA SPECIES OF SCYDM.EXUS. 



a. Head not impressed: thorax with four sub-basal foveas; scutellum dis- 

 tinct. 



I. Elytra feebly inflated and strongly but gradually narrowed behind; 



body black. peeforatus. 

 b~b. Elytra strongly inflated, less narrowed behind; piceous. the elytra 

 paler. . 5S5. badius. 



aa. Head with two impressions on vertex; thorax with six sub-basal fovece; 

 scutellum very minute; length less than 1 mm. coEPUscunrM. 



8. perforatus Schaumm. length 1-1.2 mm., ranges from Massa- 

 chusetts to Iowa. 



