324 



FAMILY X. rSELAPHIDiE. 



Throughout the State; frequent. April 9-November 28. Oc- 

 curs in nests of red ants. Laskis, beneath stones. Readily known by 

 the notched apex of middle femora. 



014 (9422). Batrisodes cavicrus Casey, Ann. N. Y. Acad. ScL, VII, 1893, 

 46S. 



■Reddish-brown, coarsely and sparsely pubescent ; elytra, legs and club 

 of antennas paler. Head wider than long, as wide as thorax. Antenna? half 

 as long as body, second joint longer than third; three to eight equal in 

 width, gradually shorter; ninth and tenth abruptly wider, slightly trans- 

 verse; eleventh much larger, subglobular. Thorax slightly longer than 

 wide ; median sulcus of disk feeble, with two or three acute recurved spines 

 each side; median sub-basal fovea large, the side ones distinct. Elytra as 

 long as wide, not punctate; humeri rounded. Carinas of first dorsal sep- 

 arated by one-sixth the width of segment. Male with a rounded subapical 

 impression on last ventral. Length 1.8 mm. 



Crawford County; rare. August 15. Described from North 

 Carolina. Dury finds it rather plentiful near Cincinnati. 



615 (1896). Batrisodes confixis Lee. Bost. Journ. Nat. Hist., YI. 1S49, 96. 



Reddish-brown, shining, finely and sparsely pubescent. Head as broad 

 as long, vertex elevated with one median carina. Antennas slender, half as 

 long as body, joints 2-9 subequal, tenth but one- third thicker and not longer 

 than ninth, eleventh oval, acute, twice as long and one-half wider than 

 tenth. Thorax as wide as long, median sulcus fine, entire, basal fovea} very 

 small, side ones distinct. Elytra at base not wider than thorax, smooth, 

 humeri feeble, discal lines very short. Length 2 mm. 



Putnam County; rare. April 22. 



Group B. 



In this group the hind tibiae bear at the outer end a very fine 

 and slender terminal spur, and the base of each elytron is marked 

 with three small rounded foveas (two in frontalis). The following 

 species are known from or probably occur in the State. 



KEY TO SPECIES OF GROUP B. 



a. Front of head in either sex not separated by a sulcus or groove from 

 the clypeus; last antennal joint of male with an erect basal tooth; 

 thorax with crests on disk ; elytra strongly punctate. schaumii. 

 aa. Frontal margin in the male separated from the clypeus by a sulcus or 

 excavation ; in the female continuous with the clypeus. 

 1). Antennas stout, the joints almost all wider than long, bead-like, sev- 

 enth and eighth smaller than those preceding or following. 



616. CASEYI. 



lib. Antennal joints, especially those of funicle, more slender, not wider 

 than long, joints 7 and 8 not smaller. 



