NO.2105. NEW SPECIES OF nYMENOPTERA—ROHWER. 229 



carina; first tergite longer than its apical width, slightly broader 

 apically; second tergite with the plate twice as wide as long; surface 

 of the first two tergites striato-reticulate with a few punctures 

 posteriorly; the suture between the second and third tergites well 

 defined; the third and following tergites shining, impunctate. Black; 

 palpi pale yellowish; legs ferruginous; tips of the posterior tibiae and 

 their tarsi infuscated; wings hyaline, iridescent; costa and stigma 

 pale brown, the rest of the venation ferruginous. 



Falls Church, Virginia. Described from three females (one, type) 

 recorded under Bureau of Entomology Number Hopk. U. S. 11197(Z, 

 material collected, and reared September 28, 1913, by Carl Heinrich, 

 who records it as a parasite of Phohethron pithecium. 



Type.— Cat. No. 18501, U.S.N.M. 



Genus GNAMPTODON Haliday. 



GNAMPTODON NEPTICULAE, new species. 



This species may be readily differentiated from the European 

 genotype by the yellow markings of the abdomen and by the stronger 

 second furrow of the tergites. 



Female. — Length 1.5 mm. Face finely reticulate, posterior orbits 

 shining; ocelli in a low triangle; the postocellar line slightly shorter 

 than the ocellocular line; third antennal joint slightly longer than the 

 fourth; entire thorax smooth, shining, practically impunctate; first 

 tergite wider than long, surface opaque with fine lines; the basal area 

 of the second tergite smooth, shining, impunctate; second area of the 

 second tergite sculptured similar to the first tergite; the base of the 

 third tergite with a complete foveolate suture which curves anteriorly; 

 the suture between the second and third tergites finely foveolate; the 

 third and following tergites shining, impunctate. Black; first four 

 joints of the antennae, palpi, legs, first two tergites and apical three 

 tergites, yellowish white; wings hyaline, stigma and basal venation 

 pale brown, the venation beyond the stigma and basal vein pallid. 



MaU. — Length 1 mm. Differs, besides the usual sexual characters, 

 from the above description of the female in having the basal joints of 

 the antennae infuscated, the apical abdominal segments black and the 

 posterior tarsi ducky. 



Falls Church, Virginia. Described from one female and three 

 males recorded under Bureau of Entomology Number Hopk. U. S. 

 111486. Mr. Heinrich records this species as a primary parasite on 

 Nepticula castaneaefoliella Clements. Material collected and reared 

 by Carl Heinrich. Rearing dates as follows: Female, June 28, 1913; 

 male allotype, August 19, 1913; male paratypes, June 30, 1913, and 

 August 12, 1913 



2Vpe.— Cat. No. 18312, U.S.N.M. 



