THE ANT-LIKE STONE BEETLES. 



303 



Putnam and Posey counties; scarce. April 17-April 22. 

 Sifted from damp vegetable debris, 



Tribe V. EUTHBIINI. 



This tribe, as characterized in the key, is represented by three 

 genera. No species of the tribe has as yet been noted in Indiana, 

 though all of the genera may occur. 



KEY TO GENERA OF EUTHEIINI. 



a. Hind coxae widely separated ; length 1-1.5 mm. 



6. Mesosternum broad and flat; antennae only moderately enlarged at 

 tips. Eutheia. 

 hi). Mesosternum strongly carinate ; last antennal joint much enlarged. 



Veraphis. 



aa. Hind coxae very moderately separated ; length less than .7 mm. 



Euthiodes. 



Veraphis cristata Brend., black, shining, head with a short 

 carina, length 1.2 mm., was described from Pennsylvania. Euthi- 

 odes latus Brend.. brownish-yellow, length .7 mm., is known from 

 Iowa. 



Tribe VI. EUMICRINI. 

 This tribe, as denned in the key, is composed of three genera, 

 two of which are represented in Indiana. 



KEY TO INDIANA GENERA OF EUMICRINI. 



a. First joint of hind tarsi only moderately elongate ; scutellum visible 

 but minute; body stouter. VI. Eumicrus. 



aa. First joint of hind tarsi fully as long as the next two combined; scu- 

 tellum wholly wanting ; body smaller and more slender. 



VII. Acholerops. 



VI. Eumicrus Lap. 1840. (Gr., ''good + small.") 



Stout convex species having the head large and thick; eyes lo- 

 cated in front of middle ; neck strongly constricted ; antennae rather 

 long, funicle capable of being reflexed into the excavated apex of 

 basal joint, club 3- jointed; thorax usually with two small fovea? 

 each side near base; femora strongly and abruptly clavate. One 

 species has been taken, while three others may occur. 



KEY TO INDIANA SPECIES OF EUMICRUS. 



a. Front broad and feebly prominent between the antenna? ; elytra distinct- 

 ly impressed at base, their pubescence rather dense, moderately long 

 and recurved. 



&. Larger, 2.5 mm. ; elytra broadly oval, two-fifths longer than wide ; 

 thorax densely punctured toward base. grossus. 



[20—23402] 



