256 MANDIBDLATA. — HYMENOPTERA. 



and black, tibise reddish, with the apex blackish ; tarsi also blackish ; wings 

 somewhat hyaline ; cellule 3-angular, slightly petiolated. 

 Also found near London in June. 



Sp. 70. axillaris. Niger, segmento 3 et 4, dorso badis, pedibus rujis, facie flava 

 lined abbreviata nigra, coxis et trochanteribus Jlavis, posticis nigra punctatis, 

 thoracejlavo maculato. (Long. corp. Sg lin. ; Exp. Alar. 5^ lin.) 



Tr. axillaris. Steph. Nomen. '2d edit. Gen. 715. 70. 



Black : palpi, mouth, and face yellow, the last with a short black streak 

 between the antennae, which are rather longer than the body, a little bent 

 towards the tip, slender, rusty beneath, with the 2 basal joints yellow ; 

 thorax with a yellow dot at the base of the wings, a line beneath and an 

 elongate one hooked anteriorly on the sides of the collar, and the anterior 

 margin of the latter occasionally the same ; abdomen with the basal 

 segment rugose, black, its apical angles dull chestnut, 2nd black, with the 

 edge chestnut, 3rd chestnut-red, with a black patch on each side, 4th black, 

 with a chestnut-red spot in the middle, remainder black, with the extreme 

 edges whitish ; legs pale tawny-red, 4 anterior coxae and trochanters yellow ; 

 hinder coxae black at the base and yellow at the apex, their trochanters 

 yellow, with a black dot above j wings hyaline ; cellule wanting. 

 Taken in June near London. 



Sp. 71. nasutus. Niger, segmentis 2-5 pedibusque rujis, coxis nigris, tarsis 

 posticis et apice tibiarum posticarum nigris ; facie ore et trochanteribus maris 

 flavis, foeminae nigris. (Long. corp. 3 — 3^ lin. ; Exp. Alar. 5 — 6 lin.) 



Tr. nasatus. Gravenhorst, ii. 264. — Steph. Nomen. 2d edit. Gen. 715. 71. 



Black : male with the mouth and face yellow, the latter with a short black 

 streak, and the tip of the mandibles also black ; antennae nearly as long as 

 the body, a little curved at the apex, black, or fuscous, with the basal joint 

 black ; abdomen with the basal segment channelled, somewhat sessile, black, 

 2nd to 5th of equal width, red or chestnut, 5th rarely fuscous, 6th and 7th 

 black; legs rather slender, 4 anterior red or tawny, the trochanters of the 

 male yellow, coxse black, with the tip yellow ; female with the coxae and 

 trochanters totally black, posterior black, femora red, tibiae at the base 

 reddish-brown, or red, with the tip black; wings rather stained ; cellule 

 wanting. 

 Found, but very rarely, near London, in Jvily. 



Sp. 72. melanocerus. Niger, segmentis 2-4 et pedibus rnfis, coxis nigris, celluld 

 parvd petiolata. (Long. corp. 3 — 3g lin.; Exp. Alar. 5 — 5§ lin.) 



Tr. melanocerus. Gravenhorst, ii. 265. — Steph. Nomen. 2d edit. Gen. 715. 72. 



Black : palpi and mandibles red, apex and base of the last black ; labrum 

 sometimes red; antennae slender, nearly as long as the body; abdomen 

 oblong-ovate, slightly pedunculated, basal segment black, 2nd to 4th red, 

 the edges of the latter occasionally black, the 5th to 7th black ; legs 



