272 MAXDIBULATA. HYMENOPTERA. 



Ich, flavatorius. Tan%er. — Steph. Catal. 349. No. 4419. 



Testaceous : eyes and ocelli black ; male with the antennfe blacky the basal 

 joint beneath yellow^, of the female a little curved at the tip, the 2 basal joints 

 rusty, sometimes fuscous above, 4 or 5 following rusty or brown, 10 next 

 ochreous, remainder black, rusty beneath ; thorax tawny, or rusty-yellow 

 above, the prothorax with 2 longitudinal black streaks, or a fuscous spot on 

 each side of the metathorax, sometimes black, with the breast, a line before 

 the wings, and another beneath yellow, the metathorax with obscure reddish 

 spots; scutellum dull yellow; abdomen generally with the terminal segment 

 mostly black, and occasionally also the peduncle, and the 6th and 7th seg- 

 ments, and part of the 5th black, especially in the females ; legs moderate, 

 rusty-yellow, the hinder femora generally with the apex black or fuscous; 

 wings testaceous-hyaline, rather obscure at the tip; cellule nearly triangular. 



Larva feeds upon that of Smerinthus Tilise, Hypogymna dispar, &c. 



Taken near London and at Whittlesea Mere in June and July : 



rare. 



Sp. 6. luteiventris. Niger, facie et linej, ante alas jiavis , ahdomint pedibusque 

 testaceis, petiolo et coxis posticis nigris. (Long. corp. 6 — 9^ lin. ; Exp. Alar. 

 12—17 lin.) 



Tr. luteiventris. Gravenhorst, ii. 386. — Steph. Nomen. 2d edit. Gen. 718. 6. 



Black : face, mouth, and orbits rusty-yellow, tips of the mandibles black ; 

 antennae about as long as the body, porrect, tawny beneath, fuscous above, 

 and slightly tawny towards the base, the first 2 joints always black above 

 and yellow below; thorax black, with the upper and lateral margins of the 

 collar, a line before, and a streak beneath the wings, and also below the scu- 

 tellum, yellow, and 2 rather obscure spots on the metathorax red ; scutellum 

 reddish-yellow ; abdomen testaceous, the peduncle and base of the 1st and 

 2nd segments black ; legs pale tawny-red, 4 anterior coxae and trochanters 

 yellow, black above, posterior coxae pale straw, above black ; femora fulvous, 

 with the extreme tip blackish, or black, with the base and apex tawny; 

 wings rather smoky-hyaline ; cellule 5-angular. 

 Also found, but very rarely, in the neighbourhood of London, and 



in Norfolk, in June and July. 



Sp. 7. dissimulator. Niger, segmentis 2 et 3 ore, facie, lined ante alas, scutello 

 tibiisque flavis, his apice nigra. (Long. corp. 9 — 10 lin.; Exp. Alar. 14 — 16 

 lin.) 



Tr. dissimilator. Steph. Nomen. 2d edit. Gen. 718. 7. 



Black: mouth, face, and vertical orbits yellow; antennse porrect, black, with 

 the basal joint yellow beneath; thorax with a line before the wings, a streak 

 beneath and a dot at the base, and the scutellum yellow ; occasionally a 

 streak beneath the latter and the anterior edge of the collar also yellow ; 

 abdomen with the basal segment black, occasionally with the apical angles 

 yellow, the 2 following segments yellow, the edge of the 2nd occasionally 



