g2 Clarence E. Mickel 
Males 
1. Interocular space at vertex not wider than length of antennal joints 
t WO. ALE Y c.. cia ers. Seley Sikri & a eee bie S crona kit uasis ails EE 2 
Interocular space at vertex decidedly wider than the length of antennal 
joints. ecmatid three. a. iieie. ssa hha ce hee eee does 2 ee 4 
2. Disc of propodeum with delicate striae, which diverge from beyond 
the base; third antennal joint one-third shorter than the fourth, 
distincta 
Disc of propodeum finely granulate to rugose ; antennal joints three 
and. fotir  subeq@aii, sancti’ sic. 1s. seek Aaa ak bee Los ac cee 3 
3. Abdomen: red angi bigelk = <s. kee 2k css cell Raise x eee aurantia 
Abdomen. entirely las Ve.-/scicet ss os ce Shee Oe bk oe ee ee picina 
4: Wings clear Gr Digarivasor eect aes accu see ech ee ee ee eee 5 
Wines “ftascotis: dete bitiacke ras, Ae even ee oR ee att ens tee ce 9 
5. Abdomen. red and bitek or entirely redo. os vs ees «Se 6 
Abdomen ‘entirely Black: $2... A Sosy dewtebloas corte apace ot ne i 
6. Disc of propodeum longitudinally striated; length 6-7 mm. .sericifrons 
Disc of propodeum finely, transversely striated; length 8-11 mm., 
conferta 
7. First joint of flagellum but half the length of the second....... yatest 
First joint of flagellum but little shorter than the second.......... -8 
8. Disc of propodeum with a longitudinal sulcus only on apical half, and 
with some rather indistinct raised lines diverging from the base to 
the sides nearly to its middle length; puncturation of mesonotuim 
rather coarse and so close as to give it an opaque appearance; length 
a 6 React Race AN ACM NT CMY oust ip ee re RD oC minor 
Disc of propodeum with a longitudinal sulcus usually extending its 
entire ength, the diverging lines wanting or very short; puncturation . 
of mesonotum rather fine, the punctures well separated; mesonotum, 
therefore, rather shining and smooth; length 8-11 mm...... bruneri 
go. Antennae as long as head and thorax, or nearly so; second abdominal 
Segment “Hed Nate ane oe hewn caslate MENS tercte te aR acer e rete oor haart rugosa 
Antennae distinctly shorter than the head and thorax together .... 10 
10.) Abdomen red: cmeptcebe sac). ->.5.(o1 s AR RRM as wattle gh aires divisa 
Abdornen' entinelogitclee 0 csts/rec noaitiere okie senescent oes vegeta 
Larropsis distincta (F. Smith). 
1856. Larrada distincta F. Smith, Cat. Hym. Brit. Mus., IV, p. 202. 
1893. Ancistroma distincta Fox, Proc. Acad. Nat. Sc. Phil, p. 401. 
1913. Larropsis distincta Williams, Kans. Univ. Sc. Bull., VIII, p. 
144. . 
Males 74, females.56: Omaha (54), Lincoln (44), West Point 
(7), Broken Bow (3), Glen (5) and Monroe Canyon (6); 
41IO 
