300 E. T. CRESSON. 



with a broad white annulus beyond the middle: thorax black above, white be- 

 neath, shining; collar, two lines on disk of mesothorax, a broad sutural line on 

 each side, tegulse, a spot beneath, scutellum and post-scutelluin, all white; me- 

 tathorax coarsely and conflueutly punctured, white, with a large, oblong, black 

 spot on each side of the middle, confluent with a blackish stain on the lateral 

 sutures, and a square blackish mark on the apical middle, the elevated lines 

 obsoletely defined; wings h3^aline, faintly yellowish, slightly dusky at tips; 

 areolet small and triangular; legs rather slender, entirely pale honey-yellow, 

 except the four anterior coxse beneath, which are whitish; abdonieh narrow, 

 depressed, opaque, the punctures being dense and linear, making the surface 

 ajjpear almost striate ; first segment slender, reddish at base, dilated at tip, 

 which is confluently punctured ; all the segments with a white band at tip, di- 

 lated on the extreme sides. Length 8 lines. 



% . — Marked like the 2 , but the form is more slender, the antennae very long 

 and subserrate, the basal joint spotted beneatli with white, and the legs brighter 

 colored and more slender. Length 7i lines, 



^rt6.— Cuba, (Coll. Dr. J. Cundlach, No. 528 J , 538 % .) One % , one 9 , spe- 

 cimens. 



I. Isetus. — This species is easily recognized by having the posterior jjortion of 

 the four basal segments of the abdomen more or less yellow; generally the se- 

 cond, third and fourth segments are yellow, with merely the basal margins 

 black ; the dilated tip of the first segment is yellow, and occasionally, in speci- 

 mens where the marl\ings are unusually well developed, the whole of this seg- 

 ment is yellow; the yellow band on the fourth segment is sometimes constrict- 

 ed in the middle, in two specimens dividing the band into two spots; the fifth 

 and remaining segments are always black; the mesothorax has occasionally a 

 spot or two short lines on the disk; the scutellum and post-scutellum are al- 

 ways yellow; the metathorax varies from being entirely yellow to entirely 

 black, sometimes yellow with a black stripe down the middle, or black with a 

 broad yellow stripe down each side; the wings vary from hyaline to dusky ; the 

 legs are yellow, including the four anterior coxse; the posterior coxae — some- 

 times varied with yellow — their femora more or less, and the a2:)ical third of 

 their tibiae, are black; sometimes the four anterior femora are more or less 

 black behind, sometimes fiiore or less tinged with reddish; tarsi dusky at tips; 

 the pleura is occasionally varied with yellowish. Length 6i — 7 lines. Forty- 

 two specimens examined. 



I have been told that this cannot be the loctus of Brulle, because the colors of 

 the posterior legs are exactly the opposite of what is described by him. But I 

 am very much inclined to believe that Brulle meant exactly contrary to what 

 the types made him say; for I know of no species of Ichneumon, either domes- 

 tic or foreign, that has the posterior legs yellow with the trochanters, base of 

 the femora and the basal two-thirds of the tibiaj black, 2k\\A I do not believe that 

 any species can be found as liaving the legs with the colors so arranged. 



I. mimicus. — %. Black; the orbits, broad on the cheeks, and all beneatli the 

 antennse, yellow, brown above, dull red beneath; tegulsB, sutural line before 

 and a siiort line beneath anterior wing, scutellum, post-scutellum, a large mark 

 ()ccu])ying most of the metathorax, sometimes reduced to two small sjiots, yel- 

 low; wings hyaline or subhyaline; the two anterior pairs of legs, including 

 their coxte, yellow, sometimes the femora are slightly blackish behind; poste- 

 rior leg.-i yellow, their coxae, femora and tips of tibite, black, their tarsi more 



