NPCs composing that spawngroup :

#Hulking_Lavaspinner (50%)

NPCs spawning around that spawngroup :
(Max range : 100)

delvea3410038, range=83 (-1478,-1412,-101)

an_elder_lavaspinner (50%)
a_reclusive_lavaspinner (50%)

delvea3410039, range=83 (-1454,-1513,-101)

an_elder_lavaspinner (50%)
an_elder_lavaspinner (50%)

delvea3410040, range=69 (-1518,-1546,-102)

an_elder_lavaspinner (50%)
an_elder_lavaspinner (50%)

delvea3410178, range=9 (-1520,-1481,-103)

unhatched_lavaspinner_eggs (50%)

delvea3410181, range=60 (-1565,-1526,-101)

delvea_monocle_2_9, range=37 (-1564,-1490,-102)

a_treasure_minder (50%)

delvea_monocle_2_10, range=65 (-1527,-1412,-99)

a_treasure_fireguard (50%)

delvea_monocle_2_11, range=36 (-1529,-1441,-101)

a_treasure_overseer (50%)

delvea_monocle_2_15, range=47 (-1565,-1446,-101)

#a_gold_chest (50%)

delvea_monocle_2_42, range=69 (-1517,-1545,-103)

an_elder_lavaspinner (50%)

delvea_monocle_2_43, range=83 (-1453,-1512,-101)

an_elder_lavaspinner (50%)

delvea_monocle_2_45, range=84 (-1477,-1411,-100)

an_elder_lavaspinner (50%)

delvea_monocle_3_1, range=42 (-1567,-1458,-103)

a_preying_lavaspinner (50%)

delvea_monocle_3_2, range=60 (-1474,-1453,-104)

a_preying_lavaspinner (50%)

delvea_monocle_3_46, range=19 (-1512,-1468,-104)

an_elder_lavaspinner (50%)

delvea_monocle_3_47, range=69 (-1517,-1545,-103)

a_reclusive_lavaspinner (50%)

delvea_monocle_3_48, range=83 (-1453,-1512,-101)

an_elder_lavaspinner (50%)

delvea_monocle_3_50, range=84 (-1477,-1411,-100)

an_elder_lavaspinner (50%)

delvea_monocle_4_9, range=69 (-1517,-1545,-103)

a_reclusive_lavaspinner (50%)

delvea_monocle_4_20, range=83 (-1453,-1512,-101)

an_elder_lavaspinner (50%)

delvea_monocle_4_26, range=84 (-1477,-1411,-100)

an_elder_lavaspinner (50%)

delvea_monocle_7_1, range=42 (-1567,-1458,-103)

a_preying_lavaspinner (50%)

delvea_monocle_7_2, range=60 (-1474,-1453,-104)

a_preying_lavaspinner (50%)

delvea_monocle_7_46, range=19 (-1512,-1468,-104)

a_reclusive_lavaspinner (50%)

delvea_monocle_7_47, range=69 (-1517,-1545,-103)

an_elder_lavaspinner (50%)

delvea_monocle_7_48, range=83 (-1453,-1512,-101)

an_elder_lavaspinner (50%)

delvea_monocle_7_50, range=84 (-1477,-1411,-100)

a_reclusive_lavaspinner (50%)

delvea_monocle_8_28, range=19 (-1512,-1468,-104)

an_elder_lavaspinner (50%)

delvea_monocle_8_29, range=69 (-1517,-1545,-103)

a_reclusive_lavaspinner (50%)

delvea_monocle_8_30, range=83 (-1453,-1512,-101)

an_elder_lavaspinner (50%)

delvea_monocle_8_32, range=84 (-1477,-1411,-100)

an_elder_lavaspinner (50%)