114 PROCEEDINGS OF THE ACADEMY OF 



12. Ichneumon additus, n. sp. 



%. Lemon-jellow; broad stripe on vertex, covering ocelli and 

 posterior margin of occiput, and the antenna except scape (apical 

 half wanting), black; mcsotliorax black, with two central j-ellow 

 lines, confluent behind ; lateral region of scutellum, spot beneath 

 tegulffi, and extreme base of first abdominal segment, black ; wings 

 hyaline, iridescent ; posterior legs pale fulvous, their tarsi black- 

 ish ; abdomen pale fulvous, with incisures of segments pale. 

 Small, head not buccate; scutellum flat; metathorax rugose, sub- 

 truncate behind, elevated lines well defined ; abdomen elongate, 

 convex, sides subparallel. Length 3i lines. 



Orizaba. 



13. Ichneumon citrinus, n. sp. 



% . Citron or lemon-3'ellow ; spot inclosing ocelli, sometimes 

 two spots on occiput, antenna? except scape, and three short, 

 broad stripes on mesothorax, the middle one sometimes reduced 

 to a spot in front, black; wings smokj'-hyaline, nervures black. 

 Head broad, buccate; scutellum rather flat; metathorax rugose, 

 truncate behind, elevated lines tolerablj^ well defined ; legs robust; 

 abdomen elongate, depressed; gastrocoeli punctiform, not deep. 

 Length 6^ lines. 



Orizaba. (Sumichrast, Xo. 140.) 



14. Ichneumon izucarus, n. sp. 



9. I3rown-ferruginous; antenna? tricolored, ferruginous, j'el- 

 low and black ; Avings yellowish-hyaline, nervures pale fulvous ; 

 posterior tibia? and tarsi black ; abdomen tinged with yellowish 

 on apical half of three basal segments; second and third segments 

 with a broad black band at base. Form robust ; head buccate ; 

 antenna? short, robust, involute, joints short ; scutellum subconvex; 

 metathorax granulated, truncate, and excavate behind, elevated 

 lines well-defined ; abdomen oblong-ovate, densely granulated, 

 gastrocoeli small. Length 5^ lines. 



%. More slender ; face yellow; antenna? bicolored base yel- 

 low, apex black ; thoracic sutures black ; wings stained with fuli- 

 ginous at base and apex ; legs black, anterior pair, except coxae, 

 most of intermediate tibia?, their tarsi and posterior tarsi except 

 base, 3'ellow ; four basal segments of abdomen stained with lemon- 

 3'ellow at tips, the fourth having the basal suture black ; second 

 and third segments as in female. Length G lines. 



Orizaba ; Cordova. 



