284 MANDIBULATA. — 'HYMENOPTEKA. 



ribus tibiisque rufis, posticis apice nigris, tarsis posterioribus annulo albe. 

 (Long. Corp. 3§ — 4 lin. ; Exp. Alar. 5 — 7 lin.) 



Cry. brevicornis. Gravenhorst, ii. 521. — Steph. JVomen. 2d edit. Gen. 721. 20. 



Black : antennse stoutish, about half the length of the body ; thorax with a 

 white streak beneath the scutelluni;, and the scutellum itself white ; abdomen 

 with the basal segment red, its petiole black, 2iid and 3rd red, following 

 black, with the edges of the 6th and 7th white on the back ; legs red, coxse 

 and trochanters black; middle tarsi fuscous, with the 2nd and 3rd joints 

 white ; posterior femora and tibiis at the apex, and the latter at the base 

 also black ; tarsi black, with the 3rd and 4th and tip of the 2nd joints white ; 

 wings somewhat hyaline, iridescent; cellule 5-angular. 

 Found in July last at Hertford ; taken also, but rarely, in other 



places within the metropolitan district. 



Sp. 21. fugitivus. Niger, ahdomine rufo, apice nigra, ano albo : mas pedibus 

 anterioribus rufis, coxis et trochanteribus albidomaculatis, tarsorum posticorum 

 annulo albo ; foimma Jemoribus rufis, anticis basin versus nigricantibus, tibiis 

 anterioribus rufis. (Long. corp. 3 — 4 lin.; Long. ovip. 1§ lin.; Exp. Alar. 

 5— 6k lin.) 



Cry. fugitivus. Gravenhorst, ii. 515. — Steph. Nomen. 2d edit. Gen. 721. 21. 



Black: palpi, inner orbits, and clypeus of the male white; antennse slender, 

 nearly as long as the body; of the male porrect, of the female curved at the 

 tip, and with about the 8th to 11th joints white; thorax with a dot below 

 the wings, and frequently a streak or 2 minute dots beneath the scutellum 

 white ; scutellum more or less white, generally so at the tip only in the 

 female ; abdomen of the male sublinear, a little dilated at the tip, of the 

 female oblong-ovate ; the basal segment black, with the tip red, 2nd to 4th 

 red, the last more or less black in the female, the remainder black, with a 

 white dot on the back of the 7th; ovipositor about half the length of the 

 body, red; legs slender, elongate, red; coxae and trochanters black, 4 

 anterior of the male white beneath, and the 4 anterior of the female more or 

 less black at the base ; hinder tibiae black, red towards the base in the 

 female ; tarsi fuscescent, hinder ones black, and of the male with the 2nd to 

 4th joints white ; wings smoky-hyaline ; cellule quadrate, or nearly so. 

 Common within the metropolitan district, in June and July; 



taken also in Salop. 



Sp. 22. confector. Niger, segmentis 1-3 tibiis anterioribus femoribusque rufis, 

 puncto seutellari, ano annuloque tarsorum posticorum et antennarum, albis. 

 (Long. corp. 4 lin.; Long. ovip. 2\ lin.; Exp. Alar. 7i lin.) 



Cry. confector. Gravenhorst, ii. 518. — Steph. Nomen. 2d edit. Gen. 721.22. 



Black : antennae slender, rather shorter than the body, curved at the tip, the 

 8th to 11th joints white above ; scutellum with a dot at the apex ; abdomen 

 rather narrower than the thorax, ovate-fusiform, the basal segment red, 

 petiole black, 2nd and 3rd red, remainder black, with a white dot on the 



