55^ CONNECTICUT GEOL. AND NAT. HIST. SURVEY. [Bull. 



dark brown, rufous, or yellow. First two abdominal segments 

 striated. Length 2.5 mm. (male). 



Type locality: Colebrook, 19 August, 1901 (W. M. W.). 



Bred from a mixed nest of the ants, Myrmica and Lepto- 

 thorax. 



Sparaison Latreille. 

 S. famelicum Say. 



Elongate, black, subopaque, punctate. Antennas fuscous; 

 legs honey-yellow, with black coxae. Parapsidal furrows distinct, 

 the scapulae with a longitudinal grooved line. Wings hyaline. 

 Length 4.5 mm. 



S. nigrum Ashmead. 



Black, shining, very pilose. Frontal ledge in male only a 

 transverse carina, in the female broader and slightly oblique. An- 

 tennae black. Legs black, tibiae and tarsi more or less yellow. 

 Abdomen of male opaque, rugose ; of female punctate, striate and 

 shining. Length 3-3.5 mm. 



Scelio Latreille. 

 Key to Species. 



1. Mesonotum with no indications of parapsidal furrows 2 



Parapsidal furrows faint but distinct 3 



2. Coxae pale brownish yellow, wings pure hyaline . . . . hyalinipennis 

 Coxae black, wings subfuscous in female, subhyaline in male 



ovivorus 



3. Stigmal vein present, short luggeri 



Stigmal vein entirely absent calopteni 



S. hyalinipennis Ashmead. 



Black, coarsely rugoso-punctate. Scape, pedicel beneath in 

 female, and legs except coxae, brownish yellow or reddish. Wings 

 clear hyaline, with only a trace of the submarginal vein. Length 

 4-4.5 mm. 



West Haven, 27 June, 1905 (H. L. V.). 



S. ovivorus Riley. 



Black, very coarsely rugoso-punctate. Antennae brown-black, 

 the scape and pedicel pale rufous or brownish yellow. Legs, in- 

 cluding coxae, pale yellowish. Stigmal vein present. Length 

 3.6-4.2 mm. 



