434 U. S. NATIONAL MUSEUM BULLETIN 216 



biology, particularly its ovipositing habits, are numerous. See the 

 list of references above. 



The specimens before us contain one lot reared from Tremex columba 

 at Bar Harbor, Maine, by A. E. Brower and a number of lots reared 

 from or found ovipositing in various woods without indication of the 

 insect host. These records include 1 from Acer negundo, 1 from Acer 

 rubrum, 4 from Acer sp., 3 from Carya, 1 from Celtis, 1 from Fagus, 

 1 from Quercus alba, and 1 from Ulmus. 



This subspecies is in the Canadian, Transition, and Upper Austral 

 zones east of the hundredth meridian and occurs also on the eastern 

 slopes of the Rocky Mountains. There are a few scattered records in 

 other, but adjacent areas. See the distribution map. Adults occur 

 mostly from mid-spring to early fall. 



4b. Megarhyssa macrurus macrurus (Linnaeus) 



Figure 319,f 



Ichneumon macrurus Linnaeus, 1771, Mantissa plantarum, vol. 2, p. 540; 9 • 



Type: 9 , near Charleston, S. C. (lost). 

 Ichneumon Georgicus Megerle, 1802, Appendix ad catalogum insectorum, quae 



mense Novembris 1802 Vienne Austriae auctionis lege vendita fuere, p. 16. New 



synonymy. Type: 9, Georgia (lost). 

 Megarhyssa lunator phaeoplila Michener, 1939, Pan-Pacific Ent., vol. 15, p. 129; 

 9 . New synonymy. Type: 9 , Victoria, Tex. (Washington). 



Distinguished from the subspecies lunator by the more extensive 

 brown markings of the wings, as shown in figure 319,f and as defined in 

 the keys. Typical females of this subspecies have the wings mostly 

 medium brown with clearer areas. Specimens intermediate to the 

 subspecies lunator are so common where the ranges of the two sub- 

 species are adjacent, that a sharp distinction in character or range is 

 not possible. 



The type locality of Ichneumon macrurus was stated as "Habitat in 

 Carolina. D[ono] D[edit] Garden." Alexander Garden was a botani- 

 cal correspondent of Linnaeus, living at Charleston, S. C. This fact 

 alone would indicate that it belonged to the Austroriparian dark- 

 winged form rather than to the northern form. Further evidence is in 

 the description itself, which states: "Alae fuscae: primoribus fasciis 

 duabus hyalinis: altera in medio, altera prope apicem." For these 

 reasons we are applying the subspecific name macrurus to the southern 

 subspecies, with phaeoptila treated as a synonym. The northern 

 subspecies, previously called macrurus macrurus, becomes macrurus 

 lunator. 



The original description of Ichneumon georgicus is as follows: 

 "ex Georg. Stat, et magn. persuas. ruf. Ant. Lut. Thor. Flav. Abd. 

 segm. 1.2 et fern, annulo nig." The type is lost (probably destroyed). 

 We could not find it in the Vienna museum. The "shape and size of 



