1865.] 245 



lowish-fuscous, the posterior pair hyaline, faintly dusky at tips; ner- 

 vures fuscous, the costal nervure except the outer margin, the stig- 

 ma except a spot on its middle, and the nervures at the base of the 

 wings, pale ; posterior wings with two middle cells. Legs whitish, 

 their femora tinged with fulvous; the four anterior tibia; behind, slightly 

 interrupted in the middle, base and apex of the posterior tibiae within, 

 and most of the tarsi, blackish. Abdomen shining black above, the 

 extreme sides, apex, and the venter entirely, whitish. Length 3i 

 lines; expanse of wings 1* lines. 

 One specimen. 



Genus ALLANTTJS, Panz. 



■ 



Allantus unicinctus. Norton. I 



Allantus unicinctus, Norton, Proc. Ent. Soc. Philad. iii, p. 9. 

 Eight 9 i eight S specimens. 



Genus MACH3PHYA, Hartig. 

 Macrophya epinota, Say. 



Allantus epinotus. Say, Bost. Journ. Nat. Hist, i, p. 215. Norton, Bost. Journ. 

 Nat. Hist. Dec. 1860, p. 257. 



Macrophya epinotus, Norton, Proc. Bost. Soc. Nat. Hist, ix, p. 118. 

 Bight 9 , eleven £ specimens. 



Genus TENTHREDO, Linn. 



1. Tenthredo pectoralis, Norton. 



Tenthredo pectora/is, Norton, Proc. Ent. Soc. Philad. iii, p. 11. 



One 9 > one £ > specimens. 



2. Tenthredo semirufa, Norton. 



Tenthredo semirufus, Norton, Proc. Ent. Soc. Philad. iii, p. 12. 

 Two 9 specimens. 



3. Tenthredo variegata, Norton. 



Tenthr do vari.egatus, Norton, Proc. Ent. Soc. Philad. iii, p. 12. 

 One % specimen. 



4. Tenthredo variata, Norton. 



Tenthredo variatus, Norton, Proc. Ent. Soc. Philad. iii, p. 12. 

 Two 9 , live % specimens. 



5. Tenthredo xanthus. Norton. 



Tenthredo xanthus, Norton, Proc. Ent. Soc. Philad. iii, p. 13. 

 Twenty-four ( £ 9 ) specimens. 



6. Tenthredo rifipes, Say. 



Tenthredo rufipes, Say, Long's 2nd Exp. ii, p. 317. 

 One 9 specimen. 



7. Tenthredo pleuralis, n. sp. 



Black: clvpeus, labrum, mandibles, margins of prothorax, most of legs and 

 body beneath, white; apical half of abdomen ferruginous; wings subhyaline. 

 Female. — Head black shining, quadrate, vertex depressed, eyes pro- 



