280 MANDIBULATA. HYMENOPTEKA. 



thorax^ the basal segment deeply channelled and slightly petiolated, the 

 peduncle a little dilated towards its apex ; ovipositor as long as the abdomen ; 

 legs red, hinder tarsi and tibiae fuscous^ the latter internally rusty or red ; 

 wings smoky-hyaline ; cellule 4-angular. 

 Taken in the vicinity of London, in June. 



Sp. 9. subpetiolatus. Niger, pedibus rufis, antennis alio annulaiisj cellula 

 4i-angulari. (Long. corp. 4 — 5 lin, ; Long. ovip. 2i lin,; Exp, Alar. 6 — 7 lin.) 



Cry. subpetiolatus. Gravenhorst, i. 699. — Steph. Nomen. 2d edit. Gen. 721. 9. 



Black : palpi pale fulvous; antennae slender, half as long as the body, curved 

 at the tip, dusky-black, the 10th and 11th joints white above ; abdomen aa 

 wide as the thorax, opaque, the basal segment with a short broad flattish 

 and channelled peduncle, the 2nd longer than broad, 2 following somewhat 

 quadrate, remainder transverse, rather narrower and obtuse ; ovipositor 

 longer than the body, red, smooth, pilose; legs slender, red, hinder tarsi 

 and outer edge of the tibiae fuscescent; wings rather smoky-hyaline; cellule 

 4-angular. 

 Found, but rarely, in June, near London ; also in Salop. 



Sp. 10. grisescens. Niger, yriseo-sericeus, femoribus tibiisque rvfis, tarsis 

 posticisjuscis, articulis Set i> subalbis, annulo antennarum albo. (Long. corp. 

 4' — 5 lin. ; Exp. Alar. 4| lin-) 



Cry. grisescens. Gravenhorst, ii. 464. — Steph. Nomen. 2d edit. Gen. 721. 10. 



Black : antennae scarcely so long as the body, porrect, the apex a little curved, 

 about the 14th to 17th joints white above; abdomen rather narrow, the 

 basal segment more or less distinctly channelled, somewhat linear, 2nd ta 

 5th rather broader, the extreme margins of the 2nd and 3rd occasionally 

 chestnut, and the sides of the latter reddish ; legs slender, red, coxae and 

 trochanters, and sometimes also the posterior knees black, the hinder tarsi 

 and apex of the tibiae dusky, with the 3rd and 4th joints of the femora 

 white ; wings hyaline ; cellule somewhat 4-angular or 5-angular. 

 Found near London, but rarely, in June. 



§ II. Scuiellum pale; abdomen black. 



Sp. 11. viduatorius. Niger, femorihus tibiisque rujis ; harum posticis apice 

 nigro : mas Jacie et coxis anterioribus albomaculatis ; fcemina annulo albo 

 antennarum. (Long. corp. 3 — 5 lin.; Exp. Alar. 5— 7i lin. ; Long. ovip. If 

 lin.) 



Cry. viduatorius. Fabricius. — Steph. Nomen. 2d edit. Gen. 721. 11. 



Black : mak with the inner orbits, a spot on the face and another on the 

 clypeus, the palpi and the mandibles yellow, the last black at the tips ; 

 female with the inner and at times the outer orbits faintly yellowish, labrum 

 reddish, palpi fuscous ; antennae of the male rather shorter than the body, 

 the basal joint whitish beneath ; of the female half the length of the body, 

 Yery slender, incurved at the tip, the 6th to about the 10th joints white. 



