NEW CHALCIDOID HYMENOPTERA. 
By A. A, GIRAULT, 
Bureau of Entomology, U. S. Dept. Agriculture, 
1. Mirzagrammosoma new genus of the Elachertini. 
Female: With the habitus of Zagrammosoma Ashmead but the 
scutellum without grooves, the vertex more elevated, elevated nearly 
for the length of the eyes which thus appear to be in the middle of the 
side of the head, the cheeks a little longer than the eyes. Antennz 
inserted about in the middle of the face, the scape compressed (about 
three times longer than wide at apex), also the funicle and club, as in 
the named genus but there are two short ring-joints. Mandibles 6— 
dentate. Submarginal vein distinctly broken in regularity, distinctly 
longer than the marginal, the postmarginal two-thirds its length. Club 
not very distinctly jointed. Hind tibial spur distinct, not large. 
Parapsidal furrows rather long, meeting the small axillaz which are 
nearly entirely cephalad of the scutellum. Pronotum conical, as long 
as the scutellum which 1s about two-thirds the length of the scutum. 
Propodeum a little shorter than the scutellum, with a delicate median 
carina and no others, the spiracle very minute. Abdomen sessile, as 
long as the thorax, conical. Cephalic coxe elongate. Elachertine in 
appearance. 
(1) Mirzagrammosoma lineaticeps new species. 
Female: Length, 2.05 mm., slender. 
Purplish black, the legs except the hind femora and tibia (except 
the latter at tips) and head pale yellow (middle and hind cox not seen) ; 
a narrow pale yellow line down two-thirds of the pronotum from cephalic 
margin, latero-dorsad and ventro-laterad (total of four lines). Meson 
of proventer caudad broadly golden yellow. A broad black line down 
middle of the face from vertex to clypeus and another across the vertex 
and down each side to the eyes and then from the ventral ends of the 
latter to the end of the head across the cheek. Mandibles pale yellow, 
reddish at tip. A pale golden line up the lateral margin of the axilla 
and along the scutum some little distance beyond (cephalad). Thorax 
finely scaly, the propodeum glabrous; abdomen delicately scaly. Fore 
wing with the following remarkable pattern, the venation black except 
the pale postmarginal vein: A long cone-shaped black marking orig- 
inating near base in an acute point, running clavately up the center of 
the blade and a little distad of the apex of the postmarginal vein obliquing 
up to the cephalic margin just before the apical turn, the obliqued 
portion narrowing cephalo-distad; a rather narrow apical black stripe 
(but absent from the cephalo-distal fourth of the apical margin); an 
oblique (cephalo-proximad), rather narrow stripe from the first long 
marking at a little before its elbow to the base of the stigmal vein and 
entirely involving that vein; and another similar stripe but much 
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