ICHNEUMON-FLIES — GELINAE I MESOSTENINI 145 



3. Second segment of hind tarsus light brown; fourth tergite ferruginous, its 



apical part often blackish; range: central Europe 



5b. inquisitorius brachyurus (Gravenhorst) 



Second segment of hind tarsus yellowish white; fourth tergite entirely black; 



range: Sachalin and part of Alaska . 5c. inquisitorius assimilis (Uchida) 



4. Pronotum fulvous, often with small yellowish markings; tegula fulvous; range: 



British Columbia to California and Utah. 



5e. inquisitorius atriceps (Cresson) 



Pronotum black, largely infuscate, or rarely mostly fulvous, usually with 



white markings; tegula white, fulvous, or brown 5 



5. Mesopleurum entirely black or less than 20% ferruginous; upper margin of 



pronotum entirely black or partly white, not entirely white; fifth tergite 

 black; range: Rocky Mountains in Colorado and northward, Yukon, Alaska, 

 and eastward in Canadian zone to Ontario. 



5d. inquisitorius pectoralis, new subspecies 



Mesopleurum at least 20% ferruginous: upper margin of pronotum entirely 



white, or rarely the stripe subdivided into a white dash in front and another 



behind; fifth tergite usually ferruginous but sometimes blackish; range: 



Atlantic Ocean to Rocky Mountains in Canadian and Transition zones. 



5f. inquisitorius atricollaris (Walsh) 



5a. Ischnus inquisitorius inquisitorius (Miiller) 



Ichneumon inquisitornis O. F. Miiller, 1776, Zoologiae Danicae prodromus ...» 

 p. 151; cf . Described from Denmark and Norway. Type: cf (lost). 



Ichneumon porrectorius Fabricius, 1787, Mantissa insectorum, p. 260; cf. Type: 

 cf, Kiel, Germany (Kiel, on deposit in Copenhagen). 



Sculpture somewhat smoother than in most Nearctic specimens, 

 especially on the tergites. The second tergite is subpolishecl and with 

 very shallow punctures. 



The coloration is variable and complex, as in the other subspecies, 

 but has the same basic features. The distinguishing subspecific 

 characters are given in the keys. Refer to European literature for a 

 color description. 



The above s^TionjTny lists only the two better kiiowm names. 

 European authors list additional synonjons. 



Specimens: 3d^, 59 from Sweden, Germany, and Austria. 



5b. Ischnus inquisitorius brachyurus (Gravenhorst) 



Cryptus brachyurus Gravenhorst, 1829, Opuscula ichneumonologica, vol. 2, p. 572; 

 9 . Types: 9 , "circa Warmbrunn, Norimbergam et Aboam" [Germany] 

 (Wroclaw?). Type not seen. 



There is some doubt whether this is a subspecies of inquisitorivs 

 or a distinct species. We have what seem to be intergrades. Besides 

 in color, as stated in the keys, brachyurus differs from typical inquis- 

 itorius in having the punctures on the second tergite usually a little 

 sharper and denser. See the European literature for more complete 

 descriptions of the color. 



Specimens: 22 cf, 69 from Sweden, German}^, Austria, and north- 

 ern Italy. 



