Microbracon kirkpatricki, sp. n.

♂♀. Pale reddish testaceous with the 1st and 2nd tergites often almost stramineous ; antennae of a darker red ; extreme apex of tarsi black ; ovipositor sheaths dark brown to black ; the male often with the 2nd–5th tergites discally brownish ; ocelli black, the ocellar area sometimes darkened ; legs, particularly the hind legs, often stramineous or nearly so ; stigma and wing veins pale reddish, except that in the forewing the 1st abscissa of the anal vein and the basal half of the 1st abscissa of the medial vein are virtually colourless, and that the costal vein is brownish, and that the stigma in the males is brownish.

♀. Integument noticeably coriaceous throughout, except the appendages. Head broadly rounded behind, 1·75 times as broad as long ; ocelli on a more or less distinct tubercle, not close together, the posterior ones only somewhat nearer to one another than to the eye ; flagellum with 25–29 joints, the majority of specimens with 27–29 joints ; apical joint of antennae wth a short apical style ; head impunctate and narrowly coriaceous. Thorax impunctate, with mesonotum, scutellum, and propodeon, more broadly coriaceous than the head ; mesopleurae more broadly coriaceous again ; the lines of the notauli only faintly indicated, but noticeable, chiefly on account of the enclosed median area which is raised somewhat and which, tapering to a point, reaches almost to the scutellar depression ; scutellar depression apparently sometimes weakly crenulate and sometimes plain ; propodeon completely plain except for a median, very weak, longitudinal excavation extending about half the length of the propodeon, when it becomes a fairly well marked longitudinal carina which extends to apex, where it joins the transverse apical ridge.