390 DESCRIPTIONS OF ICHNEUMONID.E — ASHMEAD. 



on metathorax, and anterior and middle legs, yellow; posterior legs, 

 second abdominal segment, and the apex of the third, ferruginous; all 

 coxae and first joint of trochanters black, the apical half of posterior 

 femora and the apex of tibite black, their tarsi from apex of first joint 

 fuscous. 



The whole insect is polished, but the head and thorax are sparsely 

 punctulate ; the gastrocceli large, distinct, with three or four raised 

 lines at bottom, and the apex of petiole is aciculated. Wings fusco- 

 hyaline ; veins piceous, stigma paler. 



Habitat. — Wisconsin. 



Described from one specimen. 



ICHNEUMON Liun. 

 Ichneumon xanthopsis sp. no v. 



Male. — Length, 8 ram . Head and thorax black, subopaque, finely 

 punctulate ; face, clypeus, mandibles, palpi, orbits narrowly to summit, 

 then interrupted and followed by a dot and a slight dot at middle of 

 post-orbits, yellow; antennae porrect, black, scape beneath and a spot 

 above, yellow; tegulae and a short line beneath, scutellum and a dot 

 on metascutellum, yellow; legs yellow ; all coxae, first joint of trochan- 

 ters, a long streak on anterior and middle femora beneath, posterior 

 femora entirely, apex of their tibiae and the tarsi, black. Abdomen 

 black, moderately finely punctulate ; apex of petiole, the second seg- 

 ment, except gastrocceli, third segment, except narrowly at base and 

 apical two-thirds of fourth segment, yellow; gastrocceli rather large and 

 deep, black, with some raised lines, the space between them reddish 

 and aciculated. Wings, subhyaline; veins brownish; the cubital nerv- 

 ure is broken at about the middle with the stump of a vein ; the areolet 

 is pentagonal, the upper side about as long as the lower side. 



Habitat. — St. Louis, Mo. 



This species is very close to I. parvus Cr., but it is slightly smaller 

 and a little differently colored ; the sculpture of the second abdominal 

 segment in I. parvus is coarser, more strongly aciculated, the acicula- 

 tions extending nearly to the middle of the abdomen, and the discal 

 areolet has the upper side only about half the length of the lower 

 outer side. 



Ichneumon xanthogrammus sp. nov. 



Male. — Length, 8 mm . Black and yellow; face, clypeus, mandibles 

 palpi, orbits widened on cheeks, a broad ring on antennae, superior 

 margin of prothorax, a line on sides and spot beneath, two lines on disk 

 of mesothorax, a short line on the shoulders, teguhe, and a line beneath, 

 a large spot on mesopleura, spot beneath insertion of hind wings, apical 

 half of metathorax, apex of all the abdominal segments and a large 

 spot above on last segment, all yellow ; legs yellow, the posterior pair 

 tinged with ferruginous, the coxae with a large black spot at sides. 



