MONOGRAPH OF THE NORTH AMERICAN PRO( TOTRYPID.E. 163 



Described from four specimens r(M'eive«l from Mr. E. T. I'ressoii, 

 reared from the eggs of Podistis npinosus Dalliis. 



TrissolcuB thyantae, np. iiov. 



9 . Leiigtb, 0.8 to 1""". Bla,ck, subopaque, closely, finely, miiiuteily 

 punctnlate; iiiiuulibles piceous; legs bbwk, tii)s of all the femora and 

 the tibia' and tarsi, honey-yellow. Antenna', 1 1 jointed, black, the pedi- 

 cel shorter than the first funichu- joint, the second quadrate, the third 

 very small, transverse. 



Thorax with 3 abbreviated impresse<l lines posteriorly; sctitelbun 

 smooth, polished. Wings hyaline, pubescent, the venation pale brown- 

 ish-yellow, the marginal vein about one-third the length of the shaft of 

 the stigmal. Ab(h)men broadly oval, truncate at tip, the first segment, 

 and the second at base, coarsely striate. 



Haihtat. — Selma, Ala. 



Types in National Museum. 



Described tVom specimens reared by Mr. E. A. Schwarz from the 

 eggs of Thyanta custator, but which were wrongly determined as those 

 of J'odixufi spinosuti. The species comes near T. podisi^ but differs in 

 size, color of the legs, punctuation, and in venation. 



TrisBoIcus murgantiae, »4]>. iiuv. 



$ 9 . Length, 1 to 1.4""". Black, rugose, the abdomen smooth, 

 polished; first abdominal segment striate; trochanters, knees, distal 

 ends »f tibia', and tarsi, dark honey-yellow; wings hyaline, the venation 

 pale brownish, the marginal vein about as long as the stigmal. The 

 female is the larger, with the face rugose or closely punctate; antennae 

 ll-joint€»I, wholly black or brown-black, the pedicel a little longer than 

 the first rtagellar joint; funidar joints 2, 3, and 4 transverse, the third 

 the largest; club 5 jointed, slightly wuler than the last funiclar joi-t, 

 the last joint minute; mandibles black. 



The male averages only 1'""' in length, with the face almost smooth 

 or only faintly punctate; autennje 12 jointed, filiform-moniliform, the 

 scape brownish yellow, fiagellum brown black, with all the joints, ex- 

 cept the first and last, moniliforni; the last fusiform, twice as long as 

 the penultimate; mandibles rufo pi<'eous. 



Habitat.— Baton Kouge, Ea. 



Types in National Museum. 



Described from several spe<'imens reared by Mr. IE A.Morgan, fr<mi 

 eggs of the cabbage bug, MurgantUi hixtrionim Ilahn. Conies nearest 

 to T. ihyaaUv and T. rufincapi(s, but is distinguished from them by 

 sculjiture, coh)r, and diil'erences in the antennse. 



Trissolcus rufiscapus, .sp. no v. 



9. Eength, E4""". Hlack, subopsique, very finely punctate; front 

 shining, finely, feebly jmnctate: a large fovea above the <'lypeus; legs 



