NPCs composing that spawngroup :

a_giant_wood_spider (50%)

a_large_bat (50%)

NPCs spawning around that spawngroup :
(Max range : 200)

mistythicket59699, range=147 (-530,807,31)

a_giant_wood_spider (50%)
a_large_wood_spider (50%)

mistythicket59727, range=112 (-329,869,-2)

a_tree_snake (100%)

mistythicket59732, range=180 (-564,803,34)

a_giant_bat (100%)

mistythicket59749, range=13 (-399,768,28)

a_giant_fruit_bat (50%)
a_giant_wood_spider (50%)

mistythicket59762, range=124 (-464,870,19)

a_giant_scarab (100%)

mistythicket59765, range=82 (-374,854,10)

a_tree_snake (100%)

mistythicket59772, range=151 (-301,897,-8)

mistythicket59776, range=179 (-564,746,37)

a_moss_snake (100%)

415121an_orc_lumberjack0, range=137 (-353,906,-2)

an_orc_lumberjack (100%)