300 KANSAS ACADEMY OF SCIENCE. 



carina? and at the apex of the area, lateral areas similar in sculpture to the areola, 

 except the apical lateral area adjoining the petiolarea which is rugose; wings 

 h> aline, nervures brownish testaceous, stigma dark brown, yellow at base, the 

 nervures of the basal third of the wing largely yellow, first abcissa of the radius 

 about one and a half times as long as the transverse cubitus, the second recur- 

 rent nervure almost interstitial, therefore the first abcissa of the cubitus beyond 

 the transverse cubitus nearly obsolete, the second abcissa beyond the transverse 

 cubitus about two- thirds the length of the transverse cubitus, transverse median 

 nervure interstitial, the first recurrent nervure about one-fourth the length of 

 the second recurrent nervure. Abdomen with the first segment shining, the 

 second and succeeding segments dullish or subtle, sparsely, minutely punctured; 

 ovipositor 4.5 mm. long, covered with short whitish pubescence that is uniformly 

 distributed and not sufficiently abundant to be apparent superficially. Black; 

 a yellow orbital line broken along the upper and lower eye margin, mandibles 

 brown and yellow, tegulae, anterior femora and tibias, trochanters partly, base of 

 posterior tibiae and apex of posterior femora all yellow or yellowish, posterior 

 tibice whitish above, except at apical third where the upper surface of the tibiae 

 are brownish, and at base where a brownieh band separates the basal yellow 

 from the whitish, anterior legs, excepting coxa?, largely brownish, tarsi of pos- 

 terior legs brown, segments of the abdomen beyond the second browmsh testa- 

 ceous with a black spot at base of dorsal and ventral segments ; ovipositor brown, 

 sheaths black. 



Type: University of Kansas. Type locality: Hamilton county, Kansas, 3350 

 feet.. One specimen. June, 1902, F. H. Snow. 

 Thersilochus mimeticus, n. sp. 



Mimics the T. delicatus Cresson, which is not congeneric. 



Female. — Length, 5 mm. Head shining, cheeks rather subtle; face minutely, 

 closely punctured; cheeks sparsely, minutely punctured; clypeus shining, rather 

 sparcely punctured; face distinctly elevated along the middle line; antenrce 

 thirty jointed. Thorax dullish, minutely, closely punctured; parapsidal groove 

 only faintly indicated anteriorly by a very shallow impression of the tegument; 

 scutellum sculptured almost exactly like the dorsulum; metanotum with the 

 basal area oblong and narrow, areola longer than wide, nearly as wide at apex as 

 at base, the apical boundary not developed, the areola apparently pentangular, 

 petiolarea nearly twice as long as wide, the lateral boundary angulate immedi- 

 ately above the middle, petiolarea striatopunctate but not distinctly, areola and 

 basal area rather rugulose, the lateral areas sculptured more like the dorsulum; 

 mesopleura with an oblique, shallow furrow, beneath which the tegument is 

 sculptured like the dorsulum, and above which the surface of the pleura is 

 smooth, polished, almost impunctate; wings hyaline, stigma and nervures almost 

 uniformly pale brown: transverse cubital nervure nearly as long as the first ab- 

 cissa of the radius, first abcissa of the cubitus beyond the transverse cubitus a 

 little shorter than one-half the length of the transverse cubitus, the second ab- 

 cissa shorter, second recurrent nervure at least as long as the first abcissa of the 

 radius, first recurrent nervure or second abcissa of the discoidal nervure about 

 one-third the length of the second recurrent nervure, transverse median nervure 

 interstitial. Abdomen rather shining, first and second abdominal segments 

 finely, longitudinally striate, succeeding segments subtle, minutely, sparsely 

 punctured. Thinly sericeous, the pubescence very short and whitish, almost uni- 

 formly abundant, not sufficiently dense to hide the tegument. Pale ferruginous; 

 orbits, scape, clypeus and mandibles yellowish or yellow; teguJEe, base of anterior 

 wings yellow; flagellum very dark brown; venter of abdomen yellowish and 



