DESCRIPTIONS OF ONE NEW FAMILY, EIGHT NEW GENERA, AND THIRTY-THREE NEW SPECIES OF ICHNEUMON-FLIES. By H. L. ViERECK, Of the Bureau of Entomology, United States Department of Agriculture. This paper is based chiefly upon material sent for determination to the Bureau of Entomology, United States Department of Agriculture, by economic entomologists. Many of the species treated are likely to become of economic importance. MYERSIID^, new family. Related to the Agriotypidae, from which it differs especially in the Ichneumonid habitus, in the propodeum having a superior and pos-terior face, in the first abdominal segment not bemg cylindrical, with the spiracles near the base or before the middle, but depressed, with the spiracles beyond the middle and with an apicaUy dilated post-petiole, and in the character of the abdomen proper, which recalls the corresponding part in the Figitidse on account of the second and third dorsal segments, constituting most of the abdomen beyond the first segment, the fused second and third dorsal segments overlapping on the ventral surface of the abdomen. Females whiged with a scutel or wmgless without a scutel. This family is erected for the reception of the following new genera and species : MYERSIA, new genus. Type of the genus. — Myersia laminata, new species. Head approximately as long as wide as seen from in front, twice as wide as long antero-posteriorly as seen from above; temples and cheeks receding posteriorly, not attaining the same plane as the outermost outside line of the eyes; occipital carina present, distinct and complete, joining the lower, hind corner of the malar space near the junction of the oral carma with the malar space, above reaching close to the place of the uppermost outside line of the ocelli; face convex, the convexity extending distinctly beyond the foremost outside line of the eyes; Proceedings U.S.. National Museum, Vol. 43-No. 1942 575
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