. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. 1SRUES: PARASITIC HYMENOPTERA. 67 toward the middle and decreasing in thickness on apical third. Metathorax somewhat produced behind the insertion of the hind coxae. Abdominal petiole sharply thickened on the apical third; second and third segments each two- thirds as long as the first, compressed; following shorter and more strongly compressed. Wings with the stigma very slender, scarcely apparent; radial vein inserted near its middle; radial cell long and lanceolate, reaching nearly to the wing tip; transverse cubit


. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. 1SRUES: PARASITIC HYMENOPTERA. 67 toward the middle and decreasing in thickness on apical third. Metathorax somewhat produced behind the insertion of the hind coxae. Abdominal petiole sharply thickened on the apical third; second and third segments each two- thirds as long as the first, compressed; following shorter and more strongly compressed. Wings with the stigma very slender, scarcely apparent; radial vein inserted near its middle; radial cell long and lanceolate, reaching nearly to the wing tip; transverse cubitus oblique above and strongly bowed out- wardly below, meeting the cubitus barely beyond the recurrent nervure, which is almost interstitial; discocubital vein not broken; submedian cell shorter than the median and subdiscoidal nervure in front wing originating very near the upper angle of the second discoidal cell; transverse median nervure in hind wing broken near its lower third. Type.— P. obsoleta, sp. now I cannot reconcile the characters of the type species with those of any described genus known to me and feel compelled to add another name to the already large number of ophionine genera. The peculiar curvature of the transverse cubitus and insertion of the recurrent nervure place it definitely in the tribe Ophionini (including Hell- wigiini) and close to Hellwigia from which it differs by the more generalized form of the antennae and by its different wing venation. Protohellwigia obsoleta, sp. nov. (Fig. 50.) Length 13-17 mm. Dark colored, with hyaline wings and conspicuously banded abdomen. The abdomen has a broad pale band above at the apex of each segment (except the first) which occupies one-half of the surface. The venter is pale, with a series of black spots laterally opposite the dark bands on the dorsum. The antennae are stout, lighter colored to- ward the middle, with most of the joints considerable wider than long and not very distinctly separated. The body o


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Keywords: ., bookauthorha, bookcentury1900, bookdecade1910, booksubjectzoology