556 MISC. PUBLICATION 657, U. S. DEPT. OF AGRICULTURE 
yellowish green with a dull blackish longitudinal stripe on each side of 
the back and a broken str ipe consisting , of more or less distinct black 
spots along the supraspiracular hne; often those on middle segments 
are obsolete. The tenth abdominal ter gum has a pair of large blackish 
spots (fig. 146, #). This species feeds on jack, Japanese ‘red, pitch, 
red, and shortleaf pines in North Carolina, northward through New 
England, and westward into Minnesota. Occasionally local outbreaks 
occur in New England, particularly in stands of pitch pine. The life 
cycle and habits of WV. dyari are very similar to those of the red pine 
sawfly (WV. nanulus). The larvae of WV. banksianae are very similar in 
vats 
FIGURE 149. arge plantation of red pine defoliated by Neodiprion sertifer 
in spring of 1940. Photograph taken after the current year’s growth had 
developed. 
appearance to those of V. dyari, and the life cycle and food plants of 
these two species are similar. It is a serious defohator of jack pine, 
particularly in the Lake States. 
A number of other species, of varying importance in certain sections 
of the eastern part of the United ‘States and Canada, belong to the 
genus Veodiprion. N. excitans Roh. in the southeastern part of the 
United States, from the Carolinas to Texas, feeds on loblolly and 
shortleaf pines. .V. evimina Roh. is found in the eastern part of the 
United States and feeds on pitch pine and red pine. In the southern 
part of Connecticut it has one generation and at least a partial second, 
and it winters in the cocoon stage. NV. fabricti (Leach) is found in 
the Southeastern States and feeds on longleaf pine. The full-grown 
larva of WV. pini-rigidae (Nort.) is about 34 inch long. The head is 
reddish brown. The Be is dull green, with a double longitudinal 
black line on the dorsum and a broken stripe of black on each: side, be- 
