THE ANT-LOVING BEETLES. 



827 



Throughout the State; common'. March 5-November 28. Oc- 

 curs in numbers in the large cone-shaped nests of ants and beneath 

 stones on sloping hillsides. 



619 (1910). Bateisodes Virginia Casey, Contrib. to Desc. of Coleop. of N. 



A., II, 1884, 90. 



Reddish-brown, shining; elytra dark red; antennae and legs paler. Head 

 large, quadrate, punctured in front; eyes small; vertex with two small, 

 rounded fovea? connected by a curved groove. Antennae less than half the 

 length of body, first joint as long as the next two together, second longer 

 than third; 3 to 8 quadrate, equal; ninth larger, one-half wider than long; 

 tenth large, globular ; eleventh as long as three preceding together, obliquely 

 acuminate. Thorax as wide as long, median sulcus narrow, deep, with a 

 small erect tooth each side of the basal median fovea. Elytra finely, sparse- 

 ly and distinctly punctate. Length 2 mm. 



Putnam, Fayette and Crawford counties; frequent. April 17- 

 August 15. 



620 (1906). Batrisodes spretus Lee, Bost. Journ. Nat. Hist, VI, 1849, 100. 

 Piceous-black ; elytra dark red, sparsely and finely pubescent. Head 



wider than long, wider than thorax, punctulate in front, smooth behind ; 

 eyes prominent; occiput elevated, broadly depressed each side; vertex not 

 carinate. Antenme reaching base of thorax, joints 2 to S oblong; ninth 

 longer and wider, transverse ; tenth large, quadrate-rounded ; eleventh twice 

 as long but narrower than tenth, ovate-acuminate. Thorax slightly longer 

 than wide, widest before the middle, median basal fovea small ; basal tuber- 

 cles minute. Elytra convex, not punctured; humeri without tubercles. 

 Length 1.7 mm. (Fig. 151, cl.) 



Southern half of State ; frequent. April 17-October 11. Taken 

 by sifting damp vegetable debris and in nests of white ants. 



621 (9414). Batrisodes foveicornis Casey, Bull. Cal. Acad. Sci., II, 1887, 



462. 



Reddish-brown, not punctate; sparsely clothed with long hairs. Head 

 as wide as long ; vertex nearly flat, carinate at middle. Antennae with sec- 

 ond joint one-third shorter and narrower than first ; third to seventh longer 

 than wide, eighth quadrate; ninth wider than long; tenth much wider, 

 globose, flattened and with a large fovea beneath in male; eleventh wider 

 and as long as the three preceding together. Thorax with foveas and sulci 

 deep, the median sulcus obsolete on basal third. Elytra with rounded 

 humeri. Length 2 mm. 



Monroe County; rare. May 13. Sifted from debris of beech 

 stump. 



B. denticollis Casey, black, elytra dark red, antennas and legs 

 paler, length 1.8 mm., is known from Virginia and Iowa. 



