300 U. S. NATIONAL MUSEUM BULLETIN 216 



Paratypes (21 cf, 209): From California (Cazadero); Michigan 

 (Washtenaw Co.); Minnesota (Camp Carlos at Alexandria and 

 Fillmore Co.); New York (Ithaca, Rhinebeck, and Rock City in 

 Cattaraugus Co.): North Dakota (Fargo); Ohio (Akron and Delaware 

 Co.); Pennsylvania (Spring Brook and Youngwood); and Quebec 

 (Canton). 



Collecting dates are mostly from May 15 to June 2. Those outside 

 of this range are: March 31 at Cazadero, Calif.; June 26 at Camp 

 Carlos, Alexandria, Minn.; and July 27 at Rhinebeck, N. Y. We 

 have found the species in rich, deciduous woods, flying among the 

 undergrowth and around the tips of branches at 0.2 meter to 0.6 meter 

 above the ground. 



The only rearing record is: c?, reared from Neuroptera, Canton, 

 Que., C. T. Masham. The closely related Itoplectis clavicornis, of 

 Europe, has been reared as a secondary parasite of Macrocentrus and 

 of two species of Phobocampe. I.fustiger may have the same habits. 



This species is transcontinental in the Transition zone. It is adult 

 in late spring and early summer. 



8. Itoplectis curticauda (Kriechbaumer) 



Front wing 7.7 to 9.0 mm. long; temple rather weakly convex, 

 about 0.47 as long as eye; face rather narrow; cheek unusually short 

 (about 0.35 basal width of mandible); flagellum very weakly enlarged 

 apically, the sixth segment from apex about 1.3 as long as wide; 

 punctures on mesoscutum and mesopleurum of moderate size and 

 strength; notaulus absent but its position marked by rugulosity; 

 propodeum long, its median dorsal carinae extending about 0.7 its 

 length; front tarsal claws of female without a tooth; third tergite 

 about 0.80 as long as wide; second through seventh tergites with very 

 strong elevations and depressions; ovipositor sheath about 0.9 as 

 long as first tergite. 



This species is closely related to the eastern Palaearctic Itoplectis 

 naranyae Ashmead, 1906, and to the western Palaearctic Itoplectis 

 melanocephala Gravenhorst, 1829. It has two subspecies, one in 

 Europe and one in eastern North America, separable on color as keyed 

 and described below: 



1. Hind femur faintly infuscate at apex; middle tibia with an indistinct whitish 

 subbasal band or with none; combined basal area and areola about 2.5 as 

 long as wide; range: Europe . 8a. curticauda curticauda (Kriechbaumer) 



Hind femur strongly infuscate at apex (fig. 326,d) ; middle tibia with a distinct 

 whitish subbasal band; combined areola and basal area about 3.2 as long 

 as wide; range: North America .... 8b. curticauda brevacus Townes 



