no. 1832. SOME NEW ICHNEUMON-FLIES— VIERECK. 479 



longer than one-third the malar line; scape and pedicel yellow in 

 front, brown behind excepting the apical edge which is testaceous; 

 mandibles yellow except apically, where they are castaneous; palpi 

 yellowish; inner edge of eyes slightly shallowly impressed above the 

 middle; greatest diameter of lateral ocellus not as long as the ocel- 

 locular line, being only about two-thirds as long; lateral ocellar line 

 as long as the greatest diameter of the lateral ocellus, the postocellar 

 line nearly twice as long as the lateral ocellar line, costula developed, 

 extending to the lateral longitudinal carinas, second abscissa of radius 

 straight as compared with the first abscissa and about twice as long 

 as the same, stigma at least three times as long as wide or high, 

 areolet oval, punctiform, almost obliterated, the petiole of the same 

 several times longer than the areolet; outer edge of recurrent vein, 

 where it joins the cubitus, on a line with the outer edge of the areolet, 

 the recurrent vein oblique below and extending downward and out- 

 ward; nervellus extending upward and slightly inward from the 

 submedian vein, which latter is slightly prolonged beyond the former, 

 the nervellus not broken but straight or nearly so; claws pectinate 

 basally; tubercles, tegulae, distal trochanters, mid- and hind-tibiae 

 mostly yellow; fore- and mid-coxa? pale, almost castaneous; proximal 

 trochanters, femora, and tarsi of fore- and mid-legs, yellowish to 

 testaceous; the tarsal joints of the mid-legs inclining to dark brown 

 toward the end joint, which latter is blackish; fore tibia? yellowish in 

 front, darker behind; hind coxa? and femora reddish, infuscated 

 apically; hind tibia? brownish at base and with the apical third mostly 

 infuscated; hind tarsi similarly colored to the mid-tarsi, but more 

 darkly brownish; tibia? of mid- and hind-legs sparsely spinose; spurs 

 yellowish; areopetiolarea transversely wrinkled; narrowest part of 

 petiole furrowed laterally; petiole behind the spiracles or post- 

 petiole a little narrower anteriorly than posteriorly, nearly quadrate, 

 half as long as the rest of the petiole and nearly four times as wide at 

 apex as the narrowest part of the petiole; second dorsal segment 

 about as long as wide at apex and about half as wide at base as at 

 apex, its thyridia irregularly rounded and twice as far or a little 

 farther than twice as far from the base as from the lateral edge and 

 about one-sixth as wide as the second dorsal segment is wide at base, 

 spiracle in or a little beyond the middle and about twice as far from 

 the lateral edge as are the thyridia; third dorsal segment nearly 

 parallel-sided, rather compressed apically and about three-fourths or 

 four-fifths as long as the preceding segment ; postpetiole finely reticu- 

 lated, rest of dorsal segment finely sculptured; thyridia and greater 

 part of apical two-fifths of second dorsal segment testaceous; ovi- 

 positor when in the resting position hardly exserted, straight and 

 sharp, translucent brownish; sheaths clavate and toward the apex 

 directed slightly upward; plica mostly yellow. 



