288 AMERICAN HYMENOPTERA. 



antennfe reddish brown ; wings subhyaliue nervures and stigma brown, paler at 

 base ; transverse median nervure strongly sloping, curved near lower attachment 

 and uniting above back of basal ; abdomen coarsely punctured, polished on apical 

 segments ; basal segment broad, oval above, considerably narrowed at base. 



Twelve females and eight males from Illinois, Montana, Colorado 

 and Mt. Hood, Oregon (tj'pes, coll. xVmer. Ent. Soc. ). 



CACOTKOPA Foerster. 



(Synopsis der Fam. und Gatt. der Ichneuraonen, 1868.) 



Cacotropa burru!>i Cress. (Euceros), Can. Ent. i, 104. 



Sphecophagus ('!) predaror Zabr., Journal N. Y. Ent. Soc. ii, 84. 



9. — 7 mm. Rufous, with head, prothorax, sternum and notum around base 

 of wings and scutellums, black or piceous ; anterior orbits, collar, tegulse, margin 

 of prothorax and anterior margin of mesopleurpe white; median spot on face, 

 clypeus and mouth-parts pale rufous : wings hyaline, nervures and stigma brown ; 

 stigma lanceolate ; areolet wanting ; third discoidal cell long and slender; head 

 oval in front; clypeus elevated, curved under on apical portion and strongly 

 emarginate ; parapsidal grooves distinct, deep and narrow; pleui'se opaque, sha- 

 greened ; metathorax areolated, rather indistinctly so at base of notum, rugose; 

 abdomen oval, plump; ovipositor scarcely visible; ventral segments at apex 

 elongate but not projecting; basal segment broadly petiolate, thick and ova] 

 above, and with median groove; antennae strong, slightly enlarged in the middle, 

 segments short, broad; legs strong; posterior femora slightly swollen, basal seg- 

 ment of tarsi enlarged ; claws simple, small. 



'^ . — -Difiers in having the entire thorax piceous with meso- and metanotiim 

 tinged with rufous; face, lower half of cheeks, scape beneath, small ring segment 

 of antennae, sternum, four anterior coxse and trochanters, scutellums and the 

 other parts given in 9 more largely white ; metathorax slightly subspinose, size 

 slightly smaller. 



Three females and two males from Canada and New Baltimore, 

 N. Y. (Rev. Zabriskie). Type, coll. Amer. Ent. Soc. 



SYI^DIPNUS Foerster. 

 (Synopsis der Fam. und Gatt. der Ichneumonen, 1868.) 

 Syudipntis longipes n. sp. 



9 . — 5 mm. ; antennae 6 mm. Rufous, with anterior part of vertex, cheeks 

 beneath eyes, meso- and metasternum, anterior margin of mesopleura, sutures 

 around scutellum, apex of posterior femora and extreme base and apical half of 

 posterior tibiae, piceous; remainder of posterior tibiae, four anterior trochanters, 

 palpi and tegulfe, white; wings long, hyaline, strongly iridescent, nervures and 

 stigma reddish brown, white at base; areolet wanting, stigma lanceolate ; third 

 discoidal cell long, slender; humeral transverse nervure of hind wing broken 

 much below the middle; head swollen above, slightly narrowed beneath, strongly 

 shagreened ; face flat, ridged beneath antennte; clypeus small, not distinctly 

 separated from face; antennae long, slender; thorax strongly shagreened; 

 pleurae aciculate in places; metathorax areolated, the transverse basal carina 

 wanting, basal median area small, apical median area large and reaching nearly 

 to the base ; abdomen, short broad, opaque on three basal segments, smooth above ; 



