ICHNEUMON. 169 



punctured, but not strongly. Thorax smooth, shining. Scutellum flat, longish ; the 

 sides semi-perpendicular ; the upper part with some scattered punctures. A broad line 

 on the edge of the pronotum, two short lines in the centre of the mesonotum, the 

 tubercles in front of the scutellum, the apex of the latter, the suture of the mesonotum, 

 and the postscutellum, yellow ; the breast and a large mark on the mesopleurae under 

 the wings also yellow. The pleural suture of the meso- and metanotum crenulated. 

 Metathorax broadly rounded, the centre at the apex deeply and broadly hollowed ; the 

 areae distinct ; the upper median area longer than broad, rounded at the base, trans- 

 verse at the apex ; the base shining, bearing scattered punctures, the middle transversely 

 striated ; the sides punctured. The lower portion of the metapleurae broadly yellow ; 

 the edges of the areae mostly lined with yellow, the postmedian very broadly. There are 

 no tubercles, and the metathorax is densely covered with white hair. Petiole smooth, 

 shining, keeled ; postpetiole broad, finely punctured. Gastrocceli shallow, small* 

 smooth, and shining. Abdomen closely, but not strongly, punctured ; the apex very 

 shining, impunctate, acute ; the ventral surface and all the segments at the apex broadly 

 yellow ; in the centre of the second segment is a small yellow mark indented at the 

 apex. On the hind coxae there is a black mark at the base laterally, and there is 

 another mark in front ; the hind trochanters bear a black mark on the lower side ; the 

 anterior femora and tibiae are lined above with black ; the hind femora are broadly black 

 above ; the hind tibiae at the apical half and the middle tarsi are black. 



69. Ichneumon opaculus. 



Ichneumon opaculus, Cresson, Proc. Acad. Phil. 1873, p. 115. no. 17 1 ($ , ? ). 

 Hah. Mexico, Orizaba, Cordova x (Sumichrast). 



70. Ichneumon junceus. 



Ichneumon junceus, Proc. Acad. Phil. 1873, p. 116. no. 18 ' (<$). 

 Eab. Mexico, Cordova 1 {Sumichrast). 



71. Ichneumon zapotecus. 



Ichneumon zapotecus, Cresson, Trans. Amer. Ent. Soc. ii. p. 3 x ( ? ) ; Proc. Acad. Phil. 1873,. 

 p. 116. no. 19. 

 Rah. Mexico, Cordova 1 (Sumichrast). 



72. Ichneumon encaustus. 



Ichneumon encaustus, Cresson, Trans. Amer. Ent. Soc. ii. p. 4 ( ? ) ; Proc. Acad. Phil. 1873, 

 p. 116.no. 20 1 (<?, ?). 

 Eab, Mexico, Orizaba, Cordova 1 (Sumichrast). 



biol. CENTE.-AMEK., Hymenopt, April 1885. zz 



