158 A NATURALIST IN THE GREAT LAKES REGION 



As already noted, the bronze tiger beetle (Fig. 145) is here as 

 well as the burrows of its young. Shelford names the whole 

 association from this form, although the adult animal is found 

 quite as commonly back in the next association. Here, too, 

 particularly in the transition area, is the 

 large tiger beetle (Fig. 145). The white ant 

 is abundant under the logs. Digger wasps 

 are still in evidence, though of species 

 different from those of the preceding zone. 

 The black ant, Lasius niger a^iericanus, 

 builds its nests in the sand. The mottled 

 sand locust, the migratory locust, the 

 narrow-winged locust, and the sand locust 

 are pretty well confined to this zone. The 

 FIG. 160 Longhom mottled sand locust (Fig. 155) is small, the 

 beetle, Monokommus female being about i inch long, the male 



SCUtdlatllS. c . i rrl 11 



.8 of an inch. The inner wings are yellow 

 with a dark, curved median band. The antennae are as long 

 as the hind femur. The tibia is coral red with white rings. The 

 lesser migratory locust (Fig. 157) is also small, about the same 

 size as the preceding. The femur of the hind 

 leg is reddish yellow and bears two oblique 

 dark bars across the upper outer face. The 

 knees are black. The lower part of the face is 

 usually pink. The inner wings are thin and 

 colorless. The narrow- winged locust (Fig. 1 58) 

 is also small, slightly under an inch. The 

 antennae are shorter than the femur of the 

 hind leg. The hind tibia is pale blue or bright 

 red. The inner wings are transparent and 

 colorless. The sand locust (Fig. 159) is 

 small, the male being .6 of an inch long, the 

 female .8 inch. The animal is dull brown, the hind tibia is bright 

 scarlet with a basal white ring. On the juniper several spiders 

 are found, Philodromus alaskensis, Xysticus formosus, Dendry- 



FIG. 1 6 1. Metallic 

 wood-boring beetle, 

 Chalcophora liberta. 



