8 E. T. CRESSON. 



their tibias, black ; abdomen black above, tip of first sef]^meiit except a 

 basal aud apical spot, a broad, transverse, subapical band on each cf 

 the four following segments, slightly narrowed in the middle, lemon 

 yellow; an obscure yellowish apical band on sixth segment, apical seg- 

 ment brown ; venter yellowish, banded with blackish. Form elongate, 

 closely punctured ; clypeus truncate in front, the middle slightly eniar- 

 ginate ; cheeks flat, not prominent; antennfie large and filifonii, joints 

 distinct; metathorax rugulose above, smooth laterally; areolet 5-angii- 

 lar ; abdominal segments contracted at base as in 7'/*oi'/7«.s, the surface of 

 the second, third and fourth segments above longitudinally rugulose, ba- 

 sal middle of second striated, foveae large and deep. Length 62 lines. 

 One % specimen. This is a very handson)e and conspicuous species. 



11. Ichneumon decorosus, n. sp. 



S . — Head and thorax marked as in Alnarado, except that the black 

 spot on vertex extends to base of antenn;\}; the scutelium and post- 

 scutellum are pale yellowish, the former narrowly black at ba.se, and 

 the metathorax has only a broad central black stripe and a lateral black 

 spot just behind the spiracle; wings as in Ah)a7-ado; legs tinged with 

 luteous, posterior coxae at tip, the four anterior femora behind, the pos- 

 terior pair at tip behind, tips of their tibiae and their tarsi except base, 

 black or blackish ; abdomen black above, apical margins of the second 

 and following segments, broader laterally and extending along the sides, 

 lemon-yellow; first segment yellow with a large subapical black spot; 

 venter entirely yellow. Form elongate, slender, and similar to that of 

 Alvarado except that the abdominal segments are not contracted at 

 base; the punctation is fine and close; the clypeus is truncate anteri- 

 orly; the antenna) are broken oflT. Length 6V lines. 



One % specimen. 



12. Ichneumon centrosus, n. sp. 



% . — Color and markings very similar to those of decorosus, but the 

 form is shorter and stouter, the scutelium more convex, and the abdo- 

 men shorter and broader, sericeous ; the antennae brown, paler beneath, 

 the scape yellow beneath; the metathorax has a lateral black stripe 

 and the spot above is placed before the spiracle ; the posterior coxae 

 have a broad black line behind and a black spot on each side at base, 

 all the femora have a black line above and beneath, all the tibia? are 

 dusky at base within; the abdomen is dull black, with the lateral and 

 apical margins lemon-yellow, the latter broadly so ; venter subfasciate 

 with blackish. Length 6 lines. 



One S specimen. (Suniichrast Coll. No. 71.) 



