364 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.46. 



MACRONEUROIDES ERYTHROPLEURA, new species. 



Type-locality. — S. Bernardino, Paraguay, caught flying, December 

 18 and 29, K. Fiebrig. 



Type.— Cat. No. 16217, U.S.N.M. 



Female. — Length 18.5 mm.; black and polished; face more or less 

 sculptured; anterior edge of the clypeus nearly reflexed, mandibles 

 reddish near the base of the inner margin; scape nearly three times as 

 long as tliick in the middle, almost cylindrical and expanded at the 

 apex, somewhat as in Atanycolus Foerster, flagel over 50-jointed, its 

 first joint nearly twice as long as the second, a tangible line of 

 demarkation between the vertex and the face; mesonotum reddish 

 black laterall}^, mesopleurae below the furrow between the anterior 

 superior region and the rest of the segment, or episternauli and the 

 mesosternum reddish, scutel more or less reddish posteriorly, mngs 

 fuscous with blackish veins and mostly testaceous stigma, radial 

 cell near its base with a yellowish band between the stigma and the 

 radius, the same band extending a little below the radius into the 

 second cubital cell, third discoidal cell with a hyaline area in the 

 anterior superior corner; first dorsal segment nearly one and one- 

 half times as long down the middle as wide at apex and reddish 

 laterally and basally, second and third segments somewhat reddish 

 at base and with an oblique furrow on each side, the dorsum of the 

 abdomen smooth and polished, hypopygium a little longer than the 

 pygidium; exserted portion of the ovipositor 48 mm. long. 



A paratype hails from Sapucay, Paraguay, January 23, 1900, 

 W. F. Foster. 



One paratopotype is only 15 mm. long witli a correspondingly 

 shorter ovipositor. Paratypes in the KOnigliche Zoologische Museum, 

 BerHn, are from Asuncion, Paraguay — Sapucay, December, 1904; 

 January 12, 1905, and Villa Morra, December 6, 1905, J. D. Anisits. 



One of the paratypes from Sapucay collected by Mr. J. D. Anisits 

 has the second and third segments partly translucent testaceous. 



METEORUS MAMESTR.E, new species. 



Type-locality. — Kocky Ford, Colorado, bred from Mamestra trifolii, 

 July 11, 1912, H. O. Marsh. 



Type and allotopotype.—Csit. No. 16218, U.S.N.M. 



Female. — Length 3.5 mm.; this species agrees with M. vulgaris 

 Cresson in the absence of fossae on the first dorsal abdominal segment, 

 in having the greatest diameter of the lateral ocelli distinctly shorter 

 than the space between them and the eye margin and in having the 

 postpetiole striate, but difi'ers chiefly in having the postpetiole more 

 distinctly striate, in the almost uniformly stramineous color of the 

 body, in the dark stramineous head and in the dorsulum and dorsum 



