ICHNEUMON. 145 



the back of the head and vertex are black, the rest yellow, except the tips of the 

 mandibles, which are black. Thorax punctured ; scutellum flat, the sides keeled, the 

 apex rounded, the upper part punctured, the punctures wider apart and larger than on 

 the mesonotum. Metathorax flat, broad above, opaque, finely rugose, the apex with 

 large coarse punctures, suboblique, the centre scarcely hollowed ; the supramedian area 

 obsolete. The tegulae are white behind ; the edge of the pronotum is white throughout ; 

 in the middle of the mesonotum are two short white lines. The apical half of the 

 scutellum, the postscutellum, a small mark on either side at the base, and two large 

 pear-shaped marks at the apex of the metanotum, a larger mark on the pleurae, and 

 the pro- and mesosternum yellow, the sutures of the latter, however, being black. 

 Petiole aciculate ; postpetiole coarsely rugulose, black, the sides excepted. Abdomen 

 rather long, closely and longitudinally punctured. Gastrocceli large, broad, aciculate ; 

 the sides striated. The four anterior legs are entirely yellow on the underside ; the 

 coxae wholly yellow ; the posterior coxae black, yellow at the base above and beneath ; 

 the hind trochanters are, for the greater part, black ; the femora reddish beneath, except 

 at the apex ; the hind tibiae black, except in the middle beneath ; hind tarsi entirely 

 black. Areolet scarcely 5-angled, the lateral nervures being almost united at the top. 



16. Ichneumon totanacns. 



Ichneumon totanacus, Cresson, Trans. Amer. Ent. Soc. ii. p. 10; Proc. Acad. Phil. 1873, p. 111 1 . 

 Hab. Mexico, Orizaba 1 . 



17. Ichneumon otomitus. 



Hoplismenus otomitus, Cresson, Trans. Amer. Ent. Soc. ii. p. 21 l . 

 Ichneumon otomitus, Cresson, Proc. Acad. Phil. 1873, p. 112. 



Hab. Mexico, Orizaba K 



18. Ichneumon chiapus. 



Ichneumon chiapus, Cresson, Proc. Acad. Phil. 1873, p. 112*. 

 Hab. Mexico, Cordova 1 . 



19. Ichneumon curiatus. 



Ichneumon curiatus, Cresson, Proc. Acad. Phil. 1873, p. 112. no. 7\ 

 Hab. Mexico, Orizaba 1 . 



20. Ichneumon dilucidus. 



Ichneumon dilucidus, Cresson, Proc. Acad. Phil. 1873, p. 112. no. 8 \ 

 Hab. Mexico, Orizaba {Bilimek), Cordova \ 



What I take to be this species differs from I. phcedra in the stigma (the colour of 

 biol. CENTR.-AMEE., Hymenopt., January 1885. tju 



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is 



