122 HYMENOPTERA. 



\S^. P. triangularis, C\d\. Psyche Supp. 7:31. 

 1901. P. triangularis, Lov. Ent. News. 12:8. 



Syn. P. sayi Rob. 

 1904. P. sayi, Rob. Can. Ent. 36:274, 5. 



Syn. P. eulophi^ Rob. 

 Vd^h. P. etdophi^'R.oh. Can. Ent. 37:236. 



Syn. P. supracurta Swk. and Ckll. 

 1910. P. supracurta, Swk. and Ckll. Ent. News. 21 : 71. 



P. niodestus var. minyra, (Lov.). 



1909. P. minyra, Lov. Ent, News. 20:413. 



P. niodestus var. illinoiknsis (Rob.) 

 \m<o. P.illinoie7isis,'R.o\i. Can. Ent. 28:138. 

 1897. P. illinoiensis, Rob. Tr. Ac. So. St. Louis. 7 : 315. 

 1901. P. illinoiensis, Lov. Ent. News. 12:7. 

 1904. P. illinoiensis, Rob. Can. Ent. 36:274, 5. 



1910. P. illinoiensis, Lov. Psyche. 12 : 182. 



Typical Male. — Recognized by its rather broad face, short lateral 

 marks, which are truncate, or narrow to tip a short distance above an- 

 tennal sockets ; and impunctate, or delicately punctured abdomen ; 

 together with the genitalia. 



Rather stout; head broad; scape moderately stout, not conspicu- 

 ously excavated on outer side; face broad, not narrowing suddenly 

 below; clypeus stout, but space between clypeus and eye at narrowest 

 point comparatively broad, not narrow ; base of clypeus about equal to 

 width of lateral areas at same level. 



Sculpture. — Front and vertex thickly punctured with small, irregu- 

 lar, confluent punctures ; striate laterad. Mesonotum thickly punc- 

 tured with medium sized, round punctures, separated by about one- 

 half the diameter of one puncture; scutellum with considerably larger, 

 more separated punctures; metanotum rugose, about one-half the 

 length of the scutellum. Enclosure of propodeum funnel shaped on 

 posterior face, rapidly broadening on superior face, and covered with 

 long, subquadrate pits on lateral portion ; sides rugose dorsad, rugu- 

 lose ventrad ; lateral areas almost smooth. Mesopleura moderately, 

 shallowly punctured ; punctures about the size of those on mesoscu- 

 tum, but less close; metapleura depressed, striate dorsad, rugose ven- 

 trad. First abdominal segment glabrous, with very few fine punc- 

 tures ; remaining segments impunctate. 



Yellow Makings. — Lateral face marks stout, not narrowing to mere 

 stripes below, but filling lateral areas, and remaining stout to lower 

 end, (fig. 93); above narrowing to tip on eye margin somewhat above 

 antennal sockets ; supraclypeal mark quadrate, not extending above 

 antennal sockets. Tubercles and spot on each side of collar yellow. 



