North Carolina Terrestrial Isopods 21 



not found in comparable habitats in Georgia (Schultz 1975, 1977). The 

 adult is a large, elliptical, slate gray animal easily distinguished from 

 other species of Porcellio. Smaller specimens must be examined closely, 

 however, since they can be confused with small specimens of Porcellio- 

 nides pruinosus, which frequents the same sites. The species breeds from 

 early June to late July in the Durham region, and the brood time 

 extends to August at Beaufort. It ranges to 20 mm long in the Durham 

 region. 



Porcellio virgatus (Budde-Lund) 

 Figs. 26, 27 

 Porcellionides virgatus (Budde-Lund). Van Name 1936:241, fig. 125. 



North Carolina is apparently the northern limit of the range of this 

 species. It has been taken on and near marine shores, from northern 

 Mexico through Florida to North Carolina, and is well established in 

 live oak logs and leaf litter of the coastal forests in the state. It is com- 

 mon in the same habitats in Georgia (Schultz 1975, 1977). Since P. vir- 

 gatus is easily confused with other species of Porcellio, the exopod of 

 male pleopod 1 (Fig. 27) must be examined to correctly identify it. It 

 grows to 1 1 mm long. 



Porcellionides pruinosus (Brandt) 

 Fig. 6 

 Porcellionides pruinosus (Brandt). Van Name 1936:238, figs. 127 A, 133, 

 134A. Brimley 1938:502. 



Porcellionides pruinosus is a cosmopolitan species recorded from 

 all continents of the world except Antarctica. It is widely distributed in 

 the United States although it is never abundant at any one location. 

 Many specimens were taken with Porcellio scaber in the Durham region 

 and some with other species in the same region. A few specimens were 

 collected in the Beaufort region in habitats near, but not on, the shore 

 (Map 7). It also was present in coastal Georgia (Schultz 1975). Live 

 individuals are reddish and "frosted," but the "frost" is lost in preserva- 

 tive, where specimens become red-brown. The species is distinctive 

 because the distal article of antenna 2 in adults is much longer than the 

 proximal article. The configuration of the exopod of male pleopod 1 

 (Fig. 7) should be compared with that of other species for accurate iden- 

 tification. It grows to 12 mm long. 



Armadillidium nasatum Budde-Lund 

 Fig. 30 

 Armadillidium nasatum Budde-Lund. Schultz 1961:193; 1965b:134. 



Records from North America were reviewed by Schultz (1961). It is 

 recorded from the coast to the mountains in North Carolina (Map 11). 



