216 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.49. 



Family ICHNEUMONIDAE. 

 Genus PEZOPORUS Forster. 



PEZOPORUS (SCHENKIA) TENTHREDINARUM, new species. 



This species is placed in the subgenus SchenMa because of its 

 resemblance to graminicola, the type of Schenkia. It does not appear 

 to have any described American alUes to which it may be compared. 



Female. — Length 6 mm. Anterior margin of the clypeus truncate 

 with a narrow depressed edge; head below the antennae opaque, 

 granular with a few poorly defined punctures interspread; above the 

 antennae shining, finely granular, almost impunctate; postocellar 

 line subequal with the ocellocular line; posterior orbits as broad as 

 the cephalo-caudad diameter of the eye; flagellum stout, larger api- 

 cally, the first joint slightly shorter than the second and a little more 

 than twice as long as its apical width; second joint 2h times as long 

 as its apical width, the third, fourth, and fifth joints subequal and H 

 times as long as their apical width; malar furrow well defined and 

 limiting the granular, opaque sculpture of the face, separating it 

 from the shining sculpture of the posterior orbits; mandibles with 

 the teeth of equal length; mesoscutum shining, practically impunc- 

 tate; suture between the scutum and scutellum broad, shallow, bot- 

 tom finely f oveolate ; scutellum shining, practically impunctate ; pro- 

 podeum opaque; the longitudinal carinae defining the basal area and 

 the areola well defined; basal area and areola confluent; basal median 

 lateral areas separated by a poorly defined carina which becomes 

 subobsolete laterally; first tergite smooth, without strong sculpture, 

 the lateral carinae extending from base to apex; second and following 

 tergites smooth, practically impunctate; areolet hexagonal with the 

 basal and apical ends subequal. Black; mandibles except the 

 piceous apices, clypeus, antennae (becoming infuscated and darker 

 apically), and tegulae white or whitish; legs ruf o-f erruginous ; first 

 three tergites rufo-feri'uginous, but the sides of the firet and small 

 lateral spots on the second and third, infuscate. 



Male. — Length 4.5 mm. Sculpture agrees well with the female; 

 the antennae are slightly longer and not so robust apicaUy, the third 

 joint is distinctly longer than the fourth; fourth and fifth are sub- 

 equal, the sixth is shghtly shorter than the fifth. Agrees with the 

 female in color except the bases of the posterior coxae are black and 

 the tergites are black except the small feiTuginous spot on the apex 

 of the first, transvei-se apical bands on the second and third. 



Geneva, New York. Described from one female (type) and one 

 male (allotype), reared by B. B. Fulton from a sawfly leaf miner on 

 cherry Profenusa collaris MacGillivary. 



Type.— Csit. No. 18503, U.S.N.M. 



