NPCs composing that spawngroup :

an_elder_lavaspinner (50%)

a_reclusive_lavaspinner (50%)

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

delvea3410041, range=52 (-1432,-1438,-99)

delvea3410178, range=80 (-1520,-1481,-103)

unhatched_lavaspinner_eggs (50%)
unhatched_lavaspinner_eggs (50%)

delvea_monocle_2_10, range=49 (-1527,-1412,-99)

a_treasure_fireguard (50%)
a_treasure_fireguard (50%)

delvea_monocle_2_11, range=58 (-1529,-1441,-101)

a_treasure_overseer (50%)
a_treasure_overseer (50%)

delvea_monocle_2_15, range=93 (-1565,-1446,-101)

#a_gold_chest (50%)
#a_gold_chest (50%)

delvea_monocle_2_44, range=53 (-1431,-1437,-99)

an_elder_lavaspinner (50%)
an_elder_lavaspinner (50%)

delvea_monocle_2_45, range=1 (-1477,-1411,-100)

an_elder_lavaspinner (50%)
an_elder_lavaspinner (50%)

delvea_monocle_3_2, range=41 (-1474,-1453,-104)

a_preying_lavaspinner (50%)

delvea_monocle_3_12, range=93 (-1472,-1319,-91)

a_preying_lavaspinner (50%)

delvea_monocle_3_46, range=65 (-1512,-1468,-104)

an_elder_lavaspinner (50%)

delvea_monocle_3_49, range=53 (-1431,-1437,-99)

an_elder_lavaspinner (50%)

delvea_monocle_3_50, range=1 (-1477,-1411,-100)

an_elder_lavaspinner (50%)

delvea_monocle_4_26, range=1 (-1477,-1411,-100)

an_elder_lavaspinner (50%)

delvea_monocle_4_32, range=53 (-1431,-1437,-99)

an_elder_lavaspinner (50%)

delvea_monocle_4_44, range=87 (-1398,-1380,-80)

a_reclusive_lavaspinner (50%)

delvea_monocle_7_2, range=41 (-1474,-1453,-104)

a_preying_lavaspinner (50%)

delvea_monocle_7_12, range=93 (-1472,-1319,-91)

a_preying_lavaspinner (50%)

delvea_monocle_7_46, range=65 (-1512,-1468,-104)

a_reclusive_lavaspinner (50%)

delvea_monocle_7_49, range=53 (-1431,-1437,-99)

an_elder_lavaspinner (50%)

delvea_monocle_7_50, range=1 (-1477,-1411,-100)

a_reclusive_lavaspinner (50%)

delvea_monocle_7_65, range=82 (-1529,-1477,-103)

#Hulking_Lavaspinner (50%)

delvea_monocle_8_28, range=65 (-1512,-1468,-104)

an_elder_lavaspinner (50%)

delvea_monocle_8_31, range=53 (-1431,-1437,-99)

an_elder_lavaspinner (50%)

delvea_monocle_8_32, range=1 (-1477,-1411,-100)

an_elder_lavaspinner (50%)