BIOLOGICAL PAPERS. 325 



coxfe, anterior, middle and posterior trochanters, posterior cox» above, greater 

 part of posterior face of metathorax, and a spot on metapleura, yellow; femora 

 more or leas ferrugineous, tibi;e of anterior and middle legs brownish, whitish 

 and testaceous, posterior tibia? dark brown at extreme base, apical half more or 

 lees brown, between the basal and apical dark portion the joint is whitish, tarsi 

 testaceous, tinted with dull ferruginous in part, claws brownish. 



Type: University of Kansas. Type locality : Douglas county, Kansas. July, 

 E. S. Tucker. 



Ichneumon (Eurylabus) extrematatis Creseon. 



Female. Douglas county, Kansas, 900 feet; May, E. S. Tucker. 



Ichneumon ( Barichneumon) unifasciatarius Say. 

 Male. Douglas county, Kansas; September. 



Ichneumon (Stenichneumon ) centrator Say. 



Female. Hamilton county, Kansas; S. J. Hunter. 

 Trogus atrox Cresson. 



Male. Clark county, Kansas, 19G2 feet : June, F. H. Snow. 



Male with same data as preceding and with the wings uniformly fuliginous, 

 excepting the stigma, areolet distinctly pentangular, abdomen entirely black. 



Male specimen from Hamilton county, Kansas, .3350 feet (June, 1902, F. H. 

 Snow), with the wings as in the preceding specimen, but the areolet hardly 

 pentangular, almost precisely quadrangular, the second abdominal segment ob- 

 scurely maculated. 



Trogus marginipeDDis CreBson. 



This may be only a variety of atrox. 



Male. Hamilton county, Kansas, 3350 feet; June, 1902, F. H. Snow. 



Family STEPHANID^. 

 Stephanus acutus Lepet Serv. 



Female. — Length, 14 mm. Head rather globular, the cheeks nearly as broad 

 as the eyes; front with coarse, almost transverse ruga\ nearly rugose; vertex 

 with three prominent teeth, the anterior tooth nearly as far from the anterior 

 ocellus as from the eye margin, the posterior teeth on a line with the anterior 

 ocellus, the teeth short and directed upward and backward, between the anterior 

 ocellus and the posterior ocelli the sculpture is very much like the sculpture of 

 the front, and nearly as coarse, back of the posterior ocelli the head is trans- 

 versely, rather finely striate: the cheeks are polished and sparsely punctured, 

 the malar space very much like the cheeks in sculpture and about as high as the 

 scape is wide; pedicellum about half as wide and long as the scape, first joint of 

 the flagellum about three-fourths the length of the second joint and about three- 

 fourths the length of the scape and pedicellum together. Prothorax conical, 

 dorsum transversely striate, pleura obliquely striate; dorsulum rugose, meso- 

 pleura with strong separated punctures; metanotum punctured somewhat like 

 the mesopleura, the punctures more shallow, metapleura punctured and striate; 

 posterior femora with two large and about six small teeth on the lower margin, 

 the largest tooth stout, triangnlar, and situated a little before the middle, the 

 next largest tooth slender and situated half-way between the largest tooth and 

 the apex of the femur. Abdomen with the petiole more or less completely 

 girdled with stritt, the basal half of the petiole more nearly rugulose; remaining 

 segments smooth and subtle, the petiole is about two-thirds the length of the 



