6lO CONNECTICUT GEOL. AND NAT. HIST. SURVEY. [Bull. 



P. myrmecophilum Ashmead. 

 Male: black, punctate; mandibles rufous, antennae and legs 

 pale brownish yellow; abdomen piceous, paler at the sutures. 

 Female: head piceous; thorax lighter; legs brownish yellow; 

 abdomen piceous. Lives in ant nests. Length 3-3.5 mm. 



P. mandibulare Ashmead. 



Male: like preceding, but the mandibles have only one 

 large and one small tooth. Female: like rufiventre, but the 

 antennae are fully twice the length of the head instead of one 

 and one-half times. Lives in ant nests. Length 3.5 mm. 



Neoscleroderma Kieffer. 



N. tarsalis Ashmead. 

 Black, polished, impunctate; antennae dark brown, legs 

 piceous to black with the articulations somewhat reddish and the 

 tarsi honey-yellow. Parasitic on the beetle Silvanus surina- 

 mensis, which is a common pest of various food products. 

 Length: female, 1.8 mm.; male, 1.5 mm. 



Apenesia Westwood. 

 A. coronata Ashmead. 

 Black, shining, alutaceous ; metathorax with a median carina ; 

 wings hyaline, the veins pale brownish ; legs black, tips of tibiae 

 and tarsi, pale; abdomen as long as the thorax. Male: length 

 3 mm. 



Parasitic on the common cucujid beetle Catogenus rufas. 



Laelius Ashmead. 



L. tricarinatus Ashmead. 



Black; legs, except coxae, and antennae brownish yellow. 

 Antennae twice as long as the head ; scutellum with a transverse 

 furrow ; metathorax with three carinae on the disc ; wings hyaline, 

 veins pale yellowish, marginal and stigmal veins obsolete. Length 

 2.5-2.9 mm. 



New Haven, 26 July, 1905 (H. L. V.). 



Paralaelius Kieffer. 



Bethylus Auctorum, not Latreille. 



Key to Species. 



Legs honey-yellow pedatus 



Legs black, tibiae and tarsi brownish centratus 



