. Bulletin - American Museum of Natural History. Natural history; Science. 49^ Bulletin American Museum of Natural History. [Vol. XXII^ but the only visible disagreement is in the short flagellar joints which would perhaps indicate it as a species of Atronietusi in doubt, I have placed it in the typical genus of the tribe. BRACONID^. Subfamily Rhogadin^. Rhogas tertiarius sp. nov. Female. Length mm. Head, thorax, and first abdominal segment black, remainder of the abdomen rufous or ferruginous. Antennae and legs not preserved. Head almost as wide as the thorax, the sides of the face, cly-
. Bulletin - American Museum of Natural History. Natural history; Science. 49^ Bulletin American Museum of Natural History. [Vol. XXII^ but the only visible disagreement is in the short flagellar joints which would perhaps indicate it as a species of Atronietusi in doubt, I have placed it in the typical genus of the tribe. BRACONID^. Subfamily Rhogadin^. Rhogas tertiarius sp. nov. Female. Length mm. Head, thorax, and first abdominal segment black, remainder of the abdomen rufous or ferruginous. Antennae and legs not preserved. Head almost as wide as the thorax, the sides of the face, cly- peus, and mandibles apparently ferruginous, the tips of the latter and the palpi black. Mesothorax showing the parapsidal furrows posteriorly although they are not preserved in front. First abdominal segment showing the median carina quite distinctly and some longitudinal striate sculpture. First segment about quadrate, the second and third subequal, the third a little the longer, together three times as long as the first; fourth narrower, less than one-half as long as the third, rounded at tip. The ovipositor can be seen marked upon the third and fourth segments, due no doubt to pressure; it is not visibly exserted. Wings hyaline, the venation much as in Rhogas terminalis Cress. Marginal cell pointed at the tip, the second abscissa of the radius twice as long as the first and three-fourths the length of the third. First abscissa of the cubitus slightly longer than the second, which is about twice the length of the second transverse cubitus. Submedian cell of anterior wing longer than the median by the length of the second abscissa of the radius. Described from a single specimen from Florissant, Colorado. Subfamily Microgasterin^. Microgaster primordialis sp. nov. Female. Length 3 mm. Black, the abdomen ferruginous, darker at the tip. Wings tinged with brown, the stigma brown. Antennas fuscous, rather stout, the flagellar joints not over twice as long as thick. Ovi- positor sli
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