300 MANDIBULATA. HYMENOPTERA. 



nelled, black, its margin occasionally red, 2 following red, at times 

 clouded with fuscous, 4th red or black, remainder black, the last 2 some- 

 times edged with white ; legs rather slender, red, coxse black, 4 anterior 

 sometimes reddish beneath; trochanters black, 4 anterior occasionally- 

 yellowish at the tip ; posterior tarsi and tips of the tibise and of the femora 

 black, the latter sometimes black nearly to the base; wings rather hyaline ; 

 cellule 5- or somewhat 3-angular. 



Taken in June at Darentli wood, and in other places within the 

 metropolitan district. 



Sp. 11. fumator. Niger, segmentis intermediis, femoribus, tihiisque rufis. 

 (Long. Corp. 2—S\ lin.; Exp. Alar. 3i— 51 lin.) 



Phy. fumator. Gravenhorst, ii. 687.— Steph. Nomen. 2d edit. Gen. 722. 11. 



Black : palpi pitchy straw-colour, middle of the mandibles red ; antennae of 

 the male nearly as long as the body, the basal joint red beneath ; of the 

 female half the length and curved, the 1st or 3 basal joints rusty beneath; 

 abdomen of the male oblong, of the female oblong-ovate, the basal segment 

 black, slightly aciculated occasionally in the female, and of the male with 

 the margins reddish, 2nd and 3rd red, or chestnut in the female, and some- 

 times with the edge or a fascia dusky, 4th generally black, the base some- 

 times red, rarely wholly red; 5th of the male occasionally red at the base; 

 ovipositor rarely one-third the length of the abdomen ; legs red, 4 anterior 

 coxae generally black at the base, rarely wholly red, or wholly black; 

 posterior either entirely black, or black with a red spot beneath; trochanters 

 generally black, with the tip i-ed, rarely entirely red, or entirely black ; 

 posterior tarsi fuscous, the apex of the tibiae, and also of the femora, fuscous; 

 wings hyaline, iridescent ; cellule 5-anguIar. 

 Common within the metropolitan district during the spring and 



summer months ; found also in Salop, Scotland, &c. 



Sp. 12. teneriventris. Niger, segmento 3-tio pedibusque rufis, coxis posticis 

 nigris. (Long. corp. 2\ — 3 lin. ; Exp. Alar. 4 — 5^ lin.) 



Phy. teneriventris. Gravenhorst, ii. 698. — Steph. Nomen. 2d edit. Gen. 722. 12. 



Black : palpi and generally a spot on the mandibles and the clypeus reddish ; 

 antennse usually with the 2 basal joints red beneath; abdomen slightly 

 elongated, a little dilated towards the apex, very glossy, smooth and 

 depressed, basal segment black, 2nd generally black, with the apex and 

 sides testaceous-red, 3rd either testaceous or red, generally black at the tip, 

 4th black, occasionally reddish at the base, remainder black; legs red; 

 hinder coxse black, reddish at the tip, tarsi brownish; wings hyaline, 

 iridescent; cellule somewhat 5-angular. 

 Found within the metropolitan district in June. 



Sp. 13. nitidus. Niger, abdomine lanceolato, seg7nentis 2-4 pedibusque rufis, 

 trochanter ibus et coxis nigris. (Long. corp. Sg — 3 lin. ; Exp. Alar. Sg— 5lin.) 



