. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. BRUES: PARASITIC HYMENOPTERA. 89 A typical Mesochorus, except that the abdomen appears to be more flattened than usual near the tip. Of the numerous genera included in the Porizonini, only one, Porizon, has been found fossil, one species by Brischke ('86) in Baltic Amber, and a second among the present material. Porizon exsectus, sp. nov. (Fig. 71.) Length 6 mm. Head and thorax nearly black, abdomen brownish yellow, the petiole fuscous. Legs pale brown, the hind pair somewhat darker. Wings hyaline. Head and thorax ver
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. BRUES: PARASITIC HYMENOPTERA. 89 A typical Mesochorus, except that the abdomen appears to be more flattened than usual near the tip. Of the numerous genera included in the Porizonini, only one, Porizon, has been found fossil, one species by Brischke ('86) in Baltic Amber, and a second among the present material. Porizon exsectus, sp. nov. (Fig. 71.) Length 6 mm. Head and thorax nearly black, abdomen brownish yellow, the petiole fuscous. Legs pale brown, the hind pair somewhat darker. Wings hyaline. Head and thorax very finely punctulate, the metanotum areolated; petiole of abdomen one-half as long as the thorax, tip of abdomen not preserved. Wings with a large, almost triangular stigma; first section of the radius distinctly less than half as long as the second which meets it at a right angle; transverse cubitus oblique, Fig. 71.— Porizon exsectus, sp. almost a continuation of the first section of nov- TyPe- the radius, interstitial with the recurrent nervure below; median and submedian cells of equal length; marginal as long as the discocubital cell. Ti/pe.— No. 2286, M. C. Z., Florissant, Col. (No. 3223, S. H. Scudder Coll. The specimen shows the head, thorax, both front wings, and the basal part of the abdomen, and there can be no doubt that it is a true Porizon. So far no representatives of the Pristomerini have been found in a fossil state. Demophorus antiqutjs, sp. nov. (Fig. 72.) Female. Length mm. Color probably dark or brownish, the tips of the hind femora darker and the head black. Antennae long, slender, involute, of equal thickness throughout; more than 30-jointed, the joints of the apical portion about quadrate, those nearer the base of the flagellum longer. Thorax almost evenly arcuate above when seen from the side; the metathorax rather sharply declivous behind, regularly and completely areolated. Abdomen compressed strongly toward the apex; petiole long, slender, s
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