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U. S. NATIONAL MUSEUM BULLETIN 216 



PAST 3 



2. Third tergite black; specimens nearly all short winged; range: Canadian 



zone and cooler part of Transition zone from the Atlantic Ocean to the 



Rocky Mountains and Alaska . . 5b. abbreviator similaris (Provancher) 



Third tergite ferruginous or mostly so 3 



3. Hairs on second tergite rather dense, the hair sockets separated by about 



0.7 to 1.3 the length of the hairs; specimens both long winged and short 

 winged; range: Europe .... 5a. abbreviator abbreviator (Fabricius) 

 Hairs on second tergite sparse, the hair sockets separated by about 1.8 the 

 length of the hairs; specimens all long winged; range: Alleghanian and 

 Carolinian faunas 5d. abbreviator iridescens (Cresson) 



5a. Agrothereutes abbreviator abbreviator (Fabricius) 



Ichneumon abbreviator Fabricius, 1793, Entomologia systematica . . . , vol. 2, 

 p. 153. 9 . Type: ? , "Halae Saxononum Dom. Hybner" (location 

 unknown) . 



Second tergite of female weakly mat, with rather dense hairs, 

 the hair sockets separated by about 0.7 to 1.3 the length of the hairs. 

 Both short winged and long winged females are common. 



The male is very variable in color. In general it is like the Nearctic 

 subspecies similaris but with more black on the legs and first abdominal 

 segment, the apex of the first abdominal segment usually white, 



Figure 15. — Localities for 

 Agrothereutes abbreviator sim~ 

 ilaris. 



and often with more extensive white markings, including the scu- 

 tellum, postscutellum, mark on propodeum, front and middle tro- 

 chanters, much of front and middle coxae, and basal 0.5 ± of first 

 abdominal segment. 



The female is colored rather similarly to the female of the Nearctic 

 iridescens, but with the fifth and sixth tergites mostly black and in 

 a few of the short winged specimens the thorax ferruginous rather than 

 black. 



Specimens: 25 cf, 139 from Sweden, England, Germany, Austria, 

 and northern Italy. 



